Skip to main content

Quantifying the relationship between gardening and health and well-being in the UK: a survey during the covid-19 pandemic

Abstract

Background

Rates of non-communicable diseases, including cardiovascular disease and type 2 diabetes, and mental health problems, such as anxiety and depression, are high and rising in the urbanising world. Gardening could improve both mental and physical health and help prevent a range of conditions by increasing fruit and vegetable (F&V) consumption, promoting physical activity, and reducing stress. However, good quality quantitative research in the area is scarce, and our understanding of the role of allotments and home gardens, and the effects of the level of engagement in gardening and involvement with food production has thus far been limited.

Methods

We quantitatively assess the relationship between home and allotment gardening and various indicators and predictors of health and well-being using an online survey of gardeners (n = 203) and non-gardeners (n = 71) in the UK. The survey was composed of multiple validated questionnaires (including the Short Form Food Frequency Questionnaire (SFFFQ), the Warwick-Edinburgh Mental Wellbeing Scale (WEMWBS), the Physical Health Questionnaire (PHQ) and the Self-Rated Health question (SRH)) and self-defined questions relating to participants’ involvement with gardening and food production, and relevant demographic and lifestyle factors. Data were analysed using a series of hierarchical logistic and multiple linear regression models adjusting for socio-demographic variables.

Results

After adjusting for relevant socio-demographic factors, gardening related variables were associated with better self-rated health, higher mental well-being, increased F&V consumption. Higher F&V intake was in turn also associated with better self-rated health and decreased odds of obesity. Thus, gardening had a positive association with four different aspects of health and well-being, directly or indirectly via increased F&V consumption.

Conclusions

Our results suggest that gardening in UK allotments and domestic gardens may promote different aspects of health and well-being via multiple mechanisms. Improving access to growing space and promoting regular gardening could provide a range of benefits to public health. More research on how socio-economic factors influence the health and well-being benefits of gardening will help policymakers devise strategies to maximise these benefits.

Peer Review reports

Background

Health and well-being are key determinants of both individuals’ quality of life and of social and economic development [1, 2]. A growing number of people are affected by non-communicable diseases (NCDs), including diabetes, heart disease, stroke and cancer, which are the leading cause of death globally [3, 4] and in the UK [5]. However, while various genetic, socio-demographic and environmental factors increase the risk of developing NCDs, the recent rise in their incidence can be largely attributed to modifiable lifestyle factors, which makes most NCDs preventable [6]. Smoking, unhealthy diets, including low fruit and vegetable (F&V) intake [7, 8] and high processed food [9, 10] and meat [11, 12] consumption, physical inactivity [13, 14] and associated hypertension and obesity [15, 16] are among the main preventable causes of NCDs. In the UK, nearly two thirds of the adult population are overweight or obese [17], and food-related ill health is estimated to cost the National Health Service £6 billion each year [18]. One of the main preventable causes of NCDs in the UK is low F&V consumption—over two thirds of the population do not meet the recommended ‘5-a-day’, which contributes to around 18,000 premature deaths annually [19]. In addition, over a third of adults are not active enough for good health, which is associated with 1 in 6 deaths and an annual healthcare cost of £1.2 billion, and rates of insufficient physical activity are growing [20, 21]. Disruptions caused by the recent covid-19 pandemic had further negative impacts on the eating habits and physical activity levels of many people [22].

As well as physical health, poor mental well-being is a major factor reducing quality of life, in the UK and worldwide [23, 24]. Based on a 2007 survey, 1 in 4 people in England experienced a mental health problem, such as depression or anxiety, each year [25], and mental illness is the second-largest source of burden of disease in the country [26]. To exacerbate the problem, the wide-ranging impacts of the covid-19 pandemic brought about a nationwide decline in mental health and a widening of pre-existing inequalities [27,28,29]. Similar trends could be observed in other parts of the world [30, 31]. Often devastating on their own, mental health problems also increase the likelihood of unhealthy behaviours and preventable physical health conditions [32,33,34]. On the other hand, having poor physical health increases the risk of mental health issues, creating a vicious cycle [35]. But the connection between mental health status and modifiable environmental and behavioural factors also creates opportunities for improvement [36, 37].

Lifestyle changes, including increasing physical activity, improving diet quality, and engaging in activities that reduce stress and provide a sense of well-being, can have positive effects on both mental and physical health. As a form of outdoor exercise and an opportunity to relax and connect with nature, ourselves and others, gardening has been used as a therapeutic tool in different settings [38, 39], such as care homes and hospitals, and its potential benefits for health and well-being have been increasingly studied in recent decades. Spending time outdoors, especially in natural environments, has been linked to psychological benefits [40,41,42,43], and research suggests that gardening is associated with better mental well-being [44,45,46,47,48,49,50,51,52], increased physical activity [49, 53], higher F&V intake [54,55,56,57,58,59,60,61], decreased odds of developing overweight and obesity [56, 58, 62,63,64], and improved strength and flexibility in older adults [51]. Thus, gardening, particularly F&V growing, may offer a way to simultaneously promote health and well-being through a range of pathways.

However, recent systematic reviews have found that good quality quantitative research on the health and well-being benefits of gardening that use validated tools are still relatively scarce, especially in non-institutionalised settings, and most of these have focused on community gardens in the USA [46, 56, 65,66,67,68]. Much less is known about the health-promoting potential of fruit and vegetable gardening in domestic gardens and allotments, typical sites of gardening in Europe, and how this may be modulated by the level of engagement. A key challenge in studying this is that health and well-being are multifaceted concepts that are not straightforward to assess, and are influenced by a multitude of interrelated socio-economic, environmental, lifestyle and genetic factors [69, 70]. For example, income, neighbourhood deprivation and educational attainment, as well as age, gender and ethnicity, are correlated with many health outcomes, including the incidence of different diseases, various measures of physical and mental well-being, and certain risk factors to health, such as smoking, alcohol consumption, diet quality, physical activity level and body mass index (BMI) [6]. Therefore, to meaningfully assess the health-promoting effects of gardening, potential confounders must also be considered.

Gardening on allotments (plots of land rented out to individuals for growing fruits and vegetables) and in domestic gardens is a popular recreational activity in the UK that has enjoyed increasing interest in the past 20 years, which grew further during the lockdowns that followed the outbreak of the covid-19 pandemic, motivated by a need to spend time in isolation meaningfully as well as concerns over food shortages [71,72,73,74]. Qualitative studies have found that home gardens and allotments can hold important emotional, psychological, and spiritual values for people [75, 76], which may have been a key factor contributing to their rising popularity during a time of great distress and uncertainty. One quantitative study also found that older allotment gardeners in the UK had lower perceived stress levels than similar age participants of indoor exercise classes [47], suggesting a potential role of allotments in improving well-being. Similarly, a pre-pandemic analysis of a representative survey of the English population revealed an association between access to a private garden and better evaluative well-being [77], while another, more recent, study has found that frequent home gardeners had higher mental well-being and lower stress scores and were more physically active than occasional or never-gardeners [78]. Furthermore, research has demonstrated that F&V consumption in UK food-grower households is 70% higher compared to the national average [79]. Although these findings are promising, there is still much we do not know about the contribution of gardening to better health and well-being in the country, such as the amount of time spent gardening that is required to bring about certain benefits, the role of the level of engagement with food production, and potential differences between the benefits of home- and allotment gardening.

The aim of this research was to quantitatively assess the relationship between gardening and health and well-being in the UK to increase our understanding of the ways in which it can exert its beneficial effects. Specifically, we looked at whether different gardening related variables, namely the amount of time spent gardening in a typical week, self-reported amount of food produced, and having an allotment, were associated with better self-rated general health, higher mental well-being, fewer physical health complaints, or certain predictors of health and well-being, namely obesity, diet quality (in particular, F&V intake and meat avoidance), and physical activity level. Better understanding the associations between these variables will help identify the mechanisms by which gardening could improve different aspects of health and well-being, and provide a foundation for efforts aimed at improving public health and well-being.

Methods

Participants

Data was collected from adults living in the UK, including both regular gardeners and non-gardeners. Participants were recruited by means of social media (i.e. Facebook, Twitter and email newsletter) and word of mouth in the gardening and food-growing community via the network of the ongoing MYHarvest citizen science project (myharvest.org.uk) [80], in collaboration with the National Allotment Society and the Royal Horticultural Society, and via email through the University of Sheffield’s staff and student volunteer lists. The project was granted ethical approval by the Department of Animal and Plant Sciences of The University of Sheffield (project ref. 041219).

Materials

We used an online survey composed of validated questionnaires and self-defined questions administered to participants via the Qualtrics platform. Data collection ran between 29th July and 30th November 2020. The survey collected data on various aspects of participants’ health and well-being, their involvement with gardening, and relevant demographic and lifestyle factors (see Additional File 2 for the list of questions).

Health and well-being measures

General health

General health was assessed with the widely used Self-Rated Health (SRH) question (‘In general, how would you rate your health in the past year? Excellent / Very good / Good / Fair / Poor’) [81]. The SRH was chosen as a simple yet valid and efficient measure of physical and mental health and predictor of mortality [82, 83].

Physical health

The Physical Health Questionnaire (PHQ) by Schat & Kelloway 2005 [84] (a modified version of Spence et al.’s (1987) measure of health [85]) was used as a measure of physical well-being based on the frequency of somatic symptoms experienced by participants, including sleep disturbances, headaches, respiratory illness, and gastrointestinal problems, during the previous month. The PHQ consists of 14 items measured on a seven-point Likert scale. PHQ scores were calculated by totalling responses across all items (with item four reverse scored). Total scores can range from 14 to 98, with higher scores reflecting more frequent physical complaints thus indicating poorer health.

Mental well-being

Mental well-being was measured using the Warwick-Edinburgh Mental Well-being Scale (WEMWBS) [86], a widely used tool developed for the measurement of mental well-being in the general population and the evaluation of projects and policies aimed at improving mental well-being. The WEMWBS focuses on feelings and functioning aspects of positive mental well-being in the past two weeks, and consists of 14 positively scored items measured on a 5-point Likert scale. WEMWBS scores were calculated by adding up points for all 14 items, with total scores thus ranging from 14 to 70. Scores less than 43 are considered to indicate low, 43 to 60 moderate, and above 60 high levels of mental well-being.

Body Mass Index (BMI)

Body Mass Index (BMI) was calculated from reported height and weight of participants using the formula weight(kg)/height(m)2, and BMI categories were assigned based on these values (BMI < 18.5– underweight, 18.5 to 24.9– healthy weight, 25 to 29.9– overweight, 30 to 39.9– obese) [87]. Having obesity was considered as an indicator of increased health risk.

Diet quality

Diet quality was intended to be measured using the Short Form Food Frequency Questionnaire (SFFFQ) by Cleghorn et al. 2016 [88], which assesses fruit, vegetable, fat, oily fish and non-milk extrinsic sugar consumption during a typical week over the previous month and allows the calculation of a Diet Quality Score (DQS) and subsequent classification of individuals into groups with overall healthy, average or unhealthy dietary habits. However, due to an error in uploading the survey to the online platform that resulted in the omission of one of the questions required for DQS calculation, typical fruit and vegetable (F&V) intake, which is an important predictor of general well-being and the risk of various diseases [7], was used as an indicator of diet quality. We assessed F&V intake both as a numeric outcome (portions per day; 1 portion = approx. 80 g) with higher intakes indicating better diet quality, and as a categorical variable (with three levels less than 3 portions per day, 3 or 4 portions per day, and 5 or more portions per day) with meeting the ‘5-a-day’ target indicating sufficient F&V consumption [3]. We also asked if participants followed any meat-avoiding diet, and if so, what type (i.e. vegan, vegetarian, pescatarian or flexitarian), as reduced meat consumption has also been linked to better well-being and lower risk of certain diseases in higher income countries [11, 12]. Data was also collected on typical alcohol consumption (units per typical week, with four categories rarely/ never drink alcohol, less than 14 units, between 14 & 21 units, and more than 21 units per week, as defined by the SFFFQ), with 14 or more units per week considered to pose increasing risk to health as the closest approximation to the NHS’s definition of ‘increasing risk drinking’ being more than 14 units on a typical week [89].

Physical activity

Physical activity level was measured using the International Physical Activity Questionnaire (IPAQ) short format [90], which forms a part of the SFFFQ. Physical activity levels (low, moderate, or high) were assigned to participants based on the frequency, intensity and amount of exercise they had done in the previous week. For this, an estimate of their typical energy expenditure, as MET (Metabolic Equivalent of Task) Minutes per week, was calculated from self-reported amounts of exercise of different intensity. Total MET Minutes per week were calculated as the sum of MET Minutes for each exercise type (i.e. light, moderate or vigorous) undertaken by the participant in the previous week, obtained using the formula: duration(mins) x frequency(days per week) x MET value (light exercise = 3.3, moderate exercise = 4, vigorous exercise = 8). Physical activity levels were assigned as follows: high if (a) vigorous activity on at least 3 days and achieving a total physical activity of at least 1500 MET Minutes per week OR (b) 7 or more days of any combination of light, moderate or vigorous activities achieving a total physical activity of at least 3000 MET Minutes per week; moderate if (a) 3 or more days of vigorous activity of at least 20 min per day OR (b) 5 or more days of moderate activity and/or light activity of at least 30 min per day OR (c) 5 or more days of any combination of light, moderate or vigorous activities achieving a total physical activity of at least 600 MET Minutes per week; low if not moderate or high. We used low physical activity level as an indicator of increased risk to physical [13, 14] and mental health [31].

Perceived effects of the pandemic

Participants were asked what kind of effect they felt the covid-19 pandemic had on their physical health, mental health, access to healthy food, and diet quality (individual questions with options very negative, somewhat negative, neutral, somewhat positive and very positive).

Gardening related variables

Information about participants’ gardening habits used as independent variables included the number of hours spent gardening in a typical week (collected as a numerical, but for our analyses we used the categories 1‒5 h, 6‒10 h, 11 h or more, and 0 h for those who did not regularly garden), how much food they produced (on a self-rated scale of five, with 1 referring to a very small amount, 5 indicating virtual self-sufficiency in F&V, and 0 assigned to those who did not grow food), and whether they had an allotment.

Demographic information

Socio-demographic information collected in the survey include gender, age, highest level of education, household income, household composition, caring responsibilities, Index of Multiple Deprivation (IMD) quintile (derived from participants’ postcodes), whether the participant had any long-term health conditions (assessed with a single yes/no type question), BMI (from reported height and weight, focusing on obesity as a risk factor), smoking (current and ex-smokers considered to be at increased risk, those who never smoked more than 100 cigarettes at low risk).

Analyses

A series of hierarchical regression models were used to test the effects of gardening related variables on our chosen health and well-being measures adjusting for relevant socio-demographic factors, which were selected based on previous research and inspection of our data. Control variables used in the study include gender, age, highest level of education, household income, household composition, caring responsibilities, IMD quintile, whether the participant had any long-term health conditions (yes/no), BMI (focusing on obesity as a risk factor), smoking (current and ex-smokers considered to be at increased risk, those who never smoked more than 100 cigarettes at low risk), alcohol consumption (14 or more units per typical week considered ‘increasing risk drinking’), F&V intake (less than 3 portions per day, 3 or 4 portions per day, and 5 or more portions per day), whether any meat-avoiding diet was followed and if so what type (vegan, vegetarian, pescatarian or flexitarian), and physical activity level (IPAQ category). Due to limitations imposed by sample size and the specific characteristics of the study population, the number of levels of certain factors (e.g. age, education level) were reduced. Weekly gardening time and level of food production were treated as categorical rather than numeric variables to allow comparisons with non-gardeners (who were assigned a value of zero for these variables) without violating model assumptions.

To test the effects of gardening related variables on continuous health and well-being outcomes (i.e. WEMWBs score, PHQ score, F&V intake), multiple linear regression models were used. For categorical outcomes (i.e. SRH, WEMWBS level, obesity, IPAQ level, 5-a-day F&V consumption, weekly outdoor time, health-related effects of the pandemic), multiple binary logistic regression models were used. To control for the potential confounding effects of socio-demographic and lifestyle factors, analyses were carried out in a hierarchical way. In the first step of each regression, a model adjusted for gender and age was fitted (Model 1). In step two, other key socio-demographic predictors were added to Model 1 and their significance in predicting the outcome was assessed. If any of these predictors had an associated p value of 0.1 or above, a new model was fitted with the predictor with the highest p value removed, the fit of the two models were compared using their Bayesian Information Criteria (BIC), and the model with the lower BIC was selected. If this model still contained predictors with effects with p ≥ 0.1, the process was repeated until further removal of predictors did not lead to an improvement in model fit (Model 2). In the third step of the regression, key risk factors to health were added to Model 2 and the above-described method was used to find the best fit model (Model 3). In the final step, variables related to gardening were introduced to Model 3 and the most parsimonious model was identified based on BIC (Model 4). Regression parameters (R2, B coefficients, standard error (SE), p values and, for logistic regression, χ2, odds ratios (OR) and 95% confidence intervals (CI)) were reported for the best fit models. We assessed parametric assumptions of no multicollinearity (based on Generalised Variance Inflation Factors (GVIF), using a threshold of 3) and, for linear regression, linearity (using scatter plots and residual diagnostics), and checked for the presence of potential outliers (based on standardised residual distribution) and influential cases (based on Cook’s distance and leverage plots) in each regression. To assess their generalisability, normality of standardised residual distribution and homogeneity of residual variance were also evaluated for linear regression models. Analyses were carried out in R (version 4.0.3).

Results

Participants

The study population (N = 280) comprised almost entirely (97.5%) white, predominantly female (74.6%) adults (Supplementary Table S1, Additional File 1). Nearly three quarters (72.5%) of respondents identified as regular gardeners, representing a similar proportion of both genders. Nearly half of all respondents were aged 55 or over, around 30% between 35 and 54, and 20% under 35 years old. Gardening was most common among people over 55, around 60% of whom were regular gardeners. The majority of respondents (78.2%) had received higher education. Participants were living in neighbourhoods representing all five English IMD quintiles but were predominantly from quintiles 3 to 5. The distribution of participants across IMD quintiles and household income categories was fairly similar among gardeners and non-gardeners. All of those who regularly gardened had a home garden, and around a half of regular gardeners and 36% of all participants had an allotment. Participants spent varying amounts of time gardening and were engaged in different levels of food production (Supplementary Table S2, Additional File 1).

Predictors of health outcomes

Self-rated health (SRH)

According to our best fit logistic regression model, SRH in the study population was positively associated with growing food, and negatively with having obesity or long-term health conditions (Table 1). Participants with obesity were 8 times (OR = 7.98, 95%CI = 2.49–27.77, p < 0.001), and those with long-term health conditions over 18 times (OR = 18.57, 95%CI = 5.52–79.10, p < 0.001) more likely to have ‘not good’ health compared to people without obesity and without long-term conditions, respectively. Participants who grew moderate to large amounts of food (i.e. food growing levels 3, 4 and 5) were around 90% less likely (OR = 0.14, 95%CI = 0.02–0.64, p < 0.05; OR = 0.04, 95%CI = 0.00–0.41, p < 0.05; and OR = 0.13, 95%CI = 0.01–0.83, p < 0.05, respectively) to report ‘not good’ health compared to participants who did not grow food.

Table 1 Odds Ratios (OR) for ‘not good health’ as compared to ‘good health’ a, b, c, d

Mental well-being (WEMWBS)

Mental well-being among survey respondents was positively associated with physical activity level, gardening, and having an allotment, and negatively with neighbourhood deprivation and obesity. On average, those who spent 11 or more hours gardening in a typical week scored 4.57 points ± 1.92 (S.E.) higher on the WEMWBS than those who did not regularly garden (Table 2). In addition, participants who had an allotment were 67% less likely (OR = 0.33, 95%CI = 0.10–0.94, p < 0.05) to have low mental well-being than those without an allotment, while participants with obesity were 4.5 times more likely (OR = 4.46, 95%CI = 1.64–12.65, p < 0.01) to have low mental well-being compared to those without obesity (Table 3). The odds of having high mental well-being were not affected by variables related to gardening, but were positively associated with being male (OR = 10.57, 95%CI = 2.98–45.32, p < 0.001) and with having moderate or high, compared to low, physical activity levels (OR = 5.33, 95%CI = 1.06–31.66, p < 0.05; and OR = 5.55, 95%CI = 1.13–32.26, p < 0.05, respectively) (Supplementary Table S3, Additional File 1). Participants’ perception of the effect of the covid-19 pandemic on their mental health was negatively associated with having long-term health conditions, and positively with being aged 55 or over and with spending larger amounts of time gardening (Table 4). Those who spent at least 11 h gardening in a typical week were 78% less likely (OR = 0.22, 95%CI = 0.07–0.64, p < 0.01) than non-gardeners to report that the pandemic had a negative effect on their mental health.

Table 2 Hierarchical linear regression analysis of predictors of mental well-being (WEMWBS score) a, b, c, d
Table 3 Odds Ratios (OR) for low well-being (WEMWBS < 43) as compared to moderate well-being (WEMWBS 43–59) a, b, c
Table 4 Odds Ratios (OR) for negative as compared to better effect of the pandemic on well-being a, b, c, d

Fruit and vegetable (F&V) intake, meat-avoidance, and diet-related effects of the pandemic

Typical daily F&V intake (number of 80 g portions) was positively associated with age, certain meat-avoiding diets, and growing food, and negatively with increasing-risk alcohol consumption (Tables 5 and 6). Compared to participants under 35, those aged 35–54 consumed on average 1.02 portions ± 0.41 (S.E.) more F&V daily, and were 3.6 times more likely (OR = 3.64, 95%CI = 1.30–10.74, p < 0.05) to meet the ‘5-a-day’ target (400 g), while those aged 55 or over consumed 1.16 portions ± 0.46 (S.E.) more F&V daily, and were 10.2 times more likely (OR = 10.22, 95%CI = 2.83–41.21, p < 0.001) to eat at least five portions of F&V on a typical day, genders showing no difference. Those following a flexitarian or pescatarian diet consumed 0.88 portions ± 0.34 (S.E.) and 1.87 portions ± 0.67 (S.E.), respectively, more F&V compared to regular meat-eaters, and flexitarians were also 2.9 times more likely (OR = 2.90, 95%CI = 1.10–8.34, p < 0.05) to meet the 5-a-day target than regular meat-eaters. Participants growing moderate to large amounts of food (i.e. food growing levels 3 and 4) consumed 1.21 portions ± 0.58 (S.E.) and 1.68 portions ± 0.69 (S.E.), respectively, more F&V daily than those who did not grow food, and those growing moderate amounts of food (i.e. food growing level 3) had 7.5 times higher odds of meeting the ‘5-a-day’ target compared to non-growers (OR = 7.47, 95%CI = 1.49–43.52, p < 0.05). The odds of following a meat-avoiding diet were not affected by variables related to gardening, but were positively associated with having higher education (OR = 3.61, 95%CI = 1.58–8.88, p < 0.01), and negatively with being male (OR = 0.43, 95%CI = 0.20–0.87, p < 0.05), and with living with a partner, compared to living alone (OR = 0.34, 95%CI = 0.13–0.82, p < 0.05) (Supplementary Table S4, Additional File 1).

Table 5 Hierarchical linear regression analysis of predictors of F&V intake adjusted for demographic and lifestyle factors a, b, c
Table 6 Odds Ratios (OR) for eating at least 5 F&V portions daily compared to fewer portions a, b, c

Participants’ perception of the effect of the pandemic on their diet quality or access to healthy food was not affected by gardening related variables but was associated with a number of socio-demographic factors. Respondents aged 55 or over and those with a household income of £30,000–39,999 were 95% less likely (OR = 0.05, 95%CI = 0.00–0.43 and OR = 0.05, 95%CI = 0.00–0.67, p < 0.05) than respondents under 35 and those with a household income of £20,000–29,999, respectively, to report experiencing a negative effect of the pandemic on their access to healthy food (Supplementary Table S5, Additional File 1). Participants aged 55 or over were also 92% less likely (OR = 0.08, 95%CI = 0.02–0.29, p < 0.001) than under 35s to report that the pandemic had a negative effect on their diet quality, while participants with obesity were around 4 times (OR = 4.21, 95%CI = 1.52–11.82, p < 0.01), and those typically consuming 1 or 2 portions of F&V daily were 9 times (OR = 9.09, 95%CI = 0.08–44.74, p < 0.01) more likely to report a pandemic-related negative effect on their diet quality when compared to those without obesity and those with a typical daily F&V intake of 5 or more portions, respectively (Supplementary Table S6, Additional File 1).

Physical health (PHQ score)

Physical well-being, measured as the frequency of somatic health complaints, was positively associated with age and education level, and negatively with living with a family, having long-term health conditions, and increasing risk alcohol consumption (Table 7). Participants aged 35‒54 scored 5.70 points ± 1.97 (S.E.) lower (i.e. had less frequent health complaints), those aged 55 or over scored 11.11 points ± 2.22 (S.E.) lower on the PHQ than under 35s. Respondents with higher education scored 3.89 points ± 1.65 (S.E.) lower on the PHQ than those without higher education, while those living with a family scored 4.83 points ± 2.24 (S.E.) higher (i.e. had more frequent health complaints) than participants living alone. Participants with long-term health conditions or increasing risk drinking scored 4.21 points ± 1.37 (S.E.) and 4.43 points ± 1.73 (S.E.) higher than those without long-term conditions and with low-risk alcohol consumption, respectively. Participants who were aged 55 or over, had higher education or had moderate physical activity levels were less likely to report the pandemic having had a negative effect on their physical health compared to participants under 35, without higher education, and with low physical activity, respectively (Supplementary Table S7, Additional File 1). Neither PHQ scores nor the odds of attributing a negative physical health effect to the pandemic was associated with gardening related variables.

Table 7 Hierarchical linear regression analysis of predictors of physical health (PHQ) score a, b, c, d

Obesity

The odds of having obesity were associated with age, physical activity level, F&V intake, and following a flexitarian diet (Table 8). Participants aged 35–54 were nearly 5 times more likely to have obesity than participants under 35 (OR = 4.83, 95%CI = 1.19–23.47, p < 0.05). Those with a moderate physical activity level were 72% less likely to have obesity than those with low activity levels (OR = 0.28, 95%CI = 0.07–0.91, p < 0.05), and those typically eating 3 or 4 portions of F&V were 3.9 times more likely (OR = 3.94, 95%CI = 1.22–13.74, p < 0.05) to have obesity than participants eating 5 or more portions of F&V daily. Flexitarians were also 87% (OR = 0.13, 95%CI = 0.03–0.49, p < 0.05) less likely to have obesity than regular meat-eaters. No gardening related variable had a significant effect on the odds of having obesity.

Table 8 Odds Ratios (OR) for having obesity as compared to being in any other BMI category a, b, c

Low physical activity

The odds of having a low physical activity level were not affected by variables related to gardening, but were associated with age, household income, and having caring responsibilities (Table 9). On average, participants aged 35‒54 were 3.6 times more likely (OR = 3.56, 95%CI = 1.33–10.22, p < 0.05) to have low physical activity than under 35s. Participants with caring responsibilities were 60% less likely (OR = 0.40, 95%CI = 0.18–0.85, p < 0.05) than those without caring responsibilities, while participants with a household income of £40,000 per annum or higher were 64% less likely (OR = 0.34, 95%CI = 0.13–0.96, p < 0.05) than those with a household income of £20,000–29,999 to have low physical activity.

Table 9 Odds Ratios (OR) for having low physical activity as compared to higher (moderate or high) a, b, c

Discussion

Gardening offers several potential health and well-being benefits, but our understanding of the particular role of allotments and home gardens, and the effects of the level of engagement in gardening and involvement with food production has thus far been limited. Here, we quantitatively assess the relationship between home and allotment gardening in the UK and a range of indicators and predictors of health and well-being to fill some of the knowledge gaps in the field. Specifically, we investigated the effects of the amount of time spent gardening, level of food production, and having an allotment. We provide evidence that, after accounting for several potential confounders, gardening related variables are associated with better self-rated health, higher mental well-being, and increased fruit and vegetable (F&V) consumption. Higher F&V intake was in turn also associated with better self-rated health and decreased odds of having obesity. Thus, gardening had a positive association with four different aspects of health and well-being, directly or indirectly, via increased F&V consumption. Our analyses have also revealed that different aspects of health and well-being are associated with different aspects of gardening, which suggests that a number of distinct mechanisms are involved in delivering benefits.

We found that survey respondents who had an allotment had lower odds of having low mental well-being than those without an allotment, regardless of how much time they spent gardening. The fact that this positive association was observed after accounting for a range of potential confounding variables suggests that having an allotment is likely a predictor of well-being itself, rather than simply an indicator of differences in socio-economic status that impacted on well-being, which may have been expected based on trends of decreasing allotment availability with increasing neighbourhood deprivation [75]. We also found well-being scores to be positively associated with at least 11 h of weekly gardening, but not with smaller amounts, which suggests that getting a mental well-being benefit, at least in the form measured by the WEMWBS, might require more serious engagement gardening. Our results indicate that spending larger amounts of time gardening could improve well-being, and having an allotment in particular could help protect against low well-being, but may not be sufficient for achieving high (compared to moderate) well-being, the odds of which were not affected by gardening related variables. This is in line with previous research using the WEMWBS that found the odds of high and low well-being to be determined by different factors, for example, alcohol intake and obesity being associated with low, but not high mental well-being, and F&V intake associated with high well-being [92, 93]. In addition, we found 11 or more hours of weekly gardening to be associated with lower odds of attributing a negative mental health effect to the pandemic. This is in agreement with a recent study that found that contact with green spaces helped people cope with the negative mental well-being impacts of the covid-19 lockdowns [94].

Growing moderate to large amounts of F&V was associated with both higher self-reported average F&V intake and increased odds of meeting the 5-a-day target. This is consistent with the results of another piece of recent research in our group, where we studied year-long F&V production, purchases and losses in 85 food-grower households in the UK, and found median daily per capita F&V intake to be 70% higher than the national average [79]. Other studies have also found an association between involvement with gardening and increased F&V intake, but the underlying mechanisms have so far been unclear and research focusing on allotments and domestic gardens in the UK has so far been scarce. The results of the present study suggest that, in this context, gardening contributes to increased F&V intake only if it involves the production of considerable amounts of F&V. This indicates that higher F&V intake is a response to increased availability of F&V through own production, and that engagement in gardening that involves the production of no or only smaller amounts of food may not trigger a dietary change. It is worth noting too that during the covid-19 lockdowns differences in access to F&V between people who grew their own and those who did not could have been more pronounced than under normal circumstances.

Nonetheless, we should not dismiss the idea that close exposure to a variety of F&V through own-growing could build familiarity and promote positive changes in diet, as some research suggests that this could be an effective mechanism for improving food behaviours, especially in children [61, 95, 96]. Although the underlying mechanisms are not fully understood, nature relatedness has also been linked to increased F&V intake [97], therefore engaging with natural processes through gardening may be an additional pathway through which food gardening can promote F&V consumption. Although we did not find evidence for a role of F&V gardening in alleviating the potential adverse effects of the pandemic on people’s access to healthy food or diet quality associated with temporary store closures and supply shortages [98], this may be due to the overall relatively small number of participants reporting negative experiences in these areas.

Growing moderate to large amounts of F&V was also associated with considerably lower odds of reporting ‘not good’ health, which suggests that a health benefit is mediated by increased F&V intake associated with access through own-growing. The importance of sufficient F&V consumption for the prevention of a range of non-communicable diseases is well established [3, 8]. Diets low in F&V are estimated to contribute to 18,000 premature deaths in the UK each year [19], so increasing F&V intake through own production could have important positive implications for public health. As the current cost of living crisis continues, increased availability of F&V through own-growing could particularly benefit people on lower incomes.

Although we did not find a direct association between the odds of having obesity and variables related to gardening, we did find evidence of an inverse relationship between obesity and F&V intake, in agreement with the literature [99, 100]. In addition, while there was no significant association between gardening and the odds of having low physical activity as measured in our study, previous research has established that many gardening tasks require moderate-intensity physical exercise [101]. Combined with a healthy diet, exercise can aid weight loss [102, 103], and evidence of an association between physical activity level and the odds of obesity was also present in our study. Thus, by promoting consumption of F&V and providing physical exercise, food gardening on allotments and in domestic gardens could contribute to the prevention of obesity and lower the risk of associated diseases. Moreover, we found a negative association between obesity and mental well-being, in accordance with previous research [92], suggesting an additional way in which gardening could improve well-being. The potential role of a healthy diet characterised by high consumption of F&V and moderate intake of animal products in improving mental well-being via several biological pathways, including the maintenance of a healthy body weight, has also been proposed in the literature [104].

Gardening is an outdoor activity by nature, which has been linked to less sedentary time, higher levels of physical activity, better self-rated health and decreased chronic disease risk [91, 105, 106]. Research on the effects of being outdoors and participating in physical activity in natural environments also point to benefits for psychological well-being [32, 40, 41, 107], some evidence of which was also present in our study. Therefore, as a form of green exercise, gardening could improve both physical and mental well-being, which may have been particularly important during the covid-19 lockdowns, which had a negative effect on many people’s physical activity levels [108] and mental well-being [28].

One somewhat unexpected finding from our study is that older participants had lower, rather than higher, as anticipated based on previous research, odds of reporting ‘not good’ health [109]. This might be related to the fact that in our sample there were notably more gardeners than non-gardeners among those aged 55 or over. However, the age effect persisted even after adjusting for the positive effect of gardening time, which suggests that there are likely some other factors associated with age that positively affect SRH that we did not control for in our analyses. To investigate this further, it would be valuable to repeat the study on a larger and more balanced sample.

Strengths and limitations

Our study adds particular value to existing literature on the benefits of gardening by focusing on the role of allotments and home gardens in the UK, which has been relatively understudied compared to community gardens in the USA, and by examining the effects of the amount of time spent gardening, level of food production, and having an allotment, on a range of health-related outcomes. Nevertheless, because of our moderate sample size, some care should be taken when generalising findings beyond the study population, which is not fully representative of the UK general population. In addition, some categories of the variables studied were represented by relatively few people, preventing us from testing certain potentially significant associations. Further work is required to unravel the complex relationships between individual and societal determinants of health and well-being and how the role of gardening may vary with other factors. It is also important to remember that this research was conducted during the covid-19 pandemic while major restrictions were in place in the UK and the lives of people were majorly affected in different ways. While our study offers valuable insight into the links between gardening and health and well-being, these associations may be different under normal circumstances, the specifics of which need further exploration.

Conclusions

Good health is an asset that has major impacts on both the individual and societal level. However, rates of mental and physical ill health and unhealthy behaviours that contribute to these are high and rising around the world [6]. Our study provides evidence that gardening on allotments and in domestic gardens in the UK could promote physical and mental well-being and help reduce the risk of a number of health conditions via various pathways and may have played a role in protecting against some of the negative impacts of the covid-19 pandemic. However, although gardening is a fairly popular activity in the UK, many people do not have access to a garden [110] and the growing demand for allotments is unmet by the dwindling current supply, especially in already deprived neighbourhoods [72, 111]. Improving access to growing space and promoting regular gardening could therefore provide a range of benefits to public health. There is also a need for more research to determine causal relationships and better understand how the effects of gardening may vary with socio-economic factors to guide policy-makers in devising strategies that help maximise its health and well-being benefits.

Data availability

The datasets generated and analysed in this study are not publicly available due to participant consent reasons. For more information, contact Dr Boglarka Zilla Gulyas (email: b.z.gulyas@sheffield.ac.uk).

References

  1. Eurostat. Quality of life indicators - health [Internet]. eurostat. 2021 [cited 2022 Sep 21]. Available from: https://ec.europa.eu/eurostat/statistics-explained/index.php?title=Quality_of_life_indicators_-_health.

  2. WHO. The World Health Organization Quality of Life Assessment (WHOQOL). Development and general psychometric properties. Soc Sci Med. 1998;46(12):1569–85.

    Article  Google Scholar 

  3. WHO. Diet, nutrition and the prevention of chronic diseases. Report of a Joint FAO/WHO/UNU Expert Consultation. Geneva: World Health Organization.; 2003. Vol. 916. WHO; 2003.

  4. Lancet [Internet]. 2016; Available from: https://www.sciencedirect.com/science/article/pii/S0140673616316798.

  5. Steel N, Ford JA, Newton JN, Davis ACJ, Vos T, Naghavi M, et al. Changes in health in the countries of the UK and 150 English Local Authority areas 1990–2016: a systematic analysis for the global burden of Disease Study 2016. Lancet. 2018;392(10158):1647–61.

    Article  PubMed  PubMed Central  Google Scholar 

  6. WHO. World health statistics 2022: monitoring health for the SDGs, sustainable development goals. May: WHO; 2022.

    Google Scholar 

  7. Wang DD, Li Y, Bhupathiraju SN, Rosner BA, Sun Q, Giovannucci EL, et al. Fruit and Vegetable Intake and Mortality: results from 2 prospective cohort studies of US men and women and a Meta-analysis of 26 Cohort studies. Circulation. 2021;143(17):1642–54.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  8. Wang X, Ouyang Y, Liu J, Zhu M, Zhao G, Bao W, et al. Fruit and vegetable consumption and mortality from all causes, cardiovascular disease, and cancer: systematic review and dose-response meta-analysis of prospective cohort studies. BMJ. 2014;349:g4490.

    Article  PubMed  PubMed Central  Google Scholar 

  9. Chen X, Zhang Z, Yang H, Qiu P, Wang H, Wang F, et al. Consumption of ultra-processed foods and health outcomes: a systematic review of epidemiological studies. Nutr J. 2020;19(1):86.

    Article  PubMed  PubMed Central  Google Scholar 

  10. Pagliai G, Dinu M, Madarena MP, Bonaccio M, Iacoviello L, Sofi F. Consumption of ultra-processed foods and health status: a systematic review and meta-analysis. Br J Nutr. 2021;125(3):308–18.

    Article  CAS  PubMed  Google Scholar 

  11. Papier K, Fensom GK, Knuppel A, Appleby PN, Tong TYN, Schmidt JA, et al. Meat consumption and risk of 25 common conditions: outcome-wide analyses in 475,000 men and women in the UK Biobank study. BMC Med. 2021;19(1):53.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  12. Battaglia Richi E, Baumer B, Conrad B, Darioli R, Schmid A, Keller U. Health risks Associated with Meat Consumption: a review of Epidemiological studies. Int J Vitam Nutr Res. 2015;85(1–2):70–8.

    Article  PubMed  Google Scholar 

  13. Park JH, Moon JH, Kim HJ, Kong MH, Oh YH. Sedentary lifestyle: overview of updated evidence of potential health risks. Korean J Fam Med. 2020;41(6):365–73.

    Article  PubMed  PubMed Central  Google Scholar 

  14. Lee IM, Shiroma EJ, Lobelo F, Puska P, Blair SN, Katzmarzyk PT, et al. Effect of physical inactivity on major non-communicable diseases worldwide: an analysis of burden of disease and life expectancy. Lancet. 2012;380(9838):219–29.

    Article  PubMed  PubMed Central  Google Scholar 

  15. WHO. Obesity and overweight [Internet]. 2021 [cited 2022 Sep 17]. Available from: https://www.who.int/news-room/fact-sheets/detail/obesity-and-overweight.

  16. Ells LJ, Lang R, Shield JPH, Wilkinson JR, Lidstone JSM, Coulton S, et al. Obesity and disability - a short review. Obes Rev. 2006;7(4):341–5.

    Article  CAS  PubMed  Google Scholar 

  17. NHS Digital. Health Survey for England 2019: Overweight and obesity in adults and children [Internet]. NHS.; 2020 Dec. Available from: https://files.digital.nhs.uk/9D/4195D5/HSE19-Overweight-obesity-rep.pdf.

  18. Rayner M, Scarborough P. The burden of food related ill health in the UK. J Epidemiol Community Health. 2005;59(12):1054–7.

    Article  PubMed  PubMed Central  Google Scholar 

  19. Afshin A, Sur PJ, Fay KA, Cornaby L, Ferrara G, Salama JS, et al. Health effects of dietary risks in 195 countries, 1990–2017: a systematic analysis for the global burden of Disease Study 2017. Lancet. 2019;393(10184):1958–72.

    Article  Google Scholar 

  20. British Heart Foundation. Physical Inactivity and Sedentary Behaviour Report 2017 [Internet]. British Heart Foundation.; 2017. Available from: https://www.bhf.org.uk/-/media/files/research/heart-statistics/physical-inactivity-report---mymarathon-final.pdf.

  21. OHID. Physical activity: applying All Our Health [Internet]. Office for Health Improvement and Disparities; 2015 Apr [cited 2022 Sep 21]. Available from: https://www.gov.uk/government/publications/physical-activity-applying-all-our-health/physical-activity-applying-all-our-health.

  22. Theobald C, White A. British Nutrition Foundation Healthy Eating Week 2020 - insights into the effect of COVID-19 on eating and activity habits of adults and children in the UK. Nutr Bull. 2021;46(2):238–45.

    Article  PubMed  PubMed Central  Google Scholar 

  23. Vos T, Barber RM, Bell B, Bertozzi-Villa A, Biryukov S, Bolliger I, et al. Global, regional, and national incidence, prevalence, and years lived with disability for 301 acute and chronic diseases and injuries in 188 countries, 1990–2013: a systematic analysis for the global burden of Disease Study 2013. Lancet. 2015;386(9995):743–800.

    Article  Google Scholar 

  24. Vigo D, Thornicroft G, Atun R. Estimating the true global burden of mental illness. Lancet Psychiatry. 2016;3(2):171–8.

    Article  PubMed  Google Scholar 

  25. NHS Digital. Adult Psychiatric Morbidity in England– 2007, Results of a household survey [Internet]. NHS Digital; 2009 Jan [cited 2022 Sep 8]. Available from: https://digital.nhs.uk/data-and-information/publications/statistical/adult-psychiatric-morbidity-survey/adult-psychiatric-morbidity-in-england-2007-results-of-a-household-survey.

  26. Public Health England. Health profile for England: 2019 [Internet]. GOV.UK. 2019 [cited 2022 Sep 8]. Available from: https://www.gov.uk/government/publications/health-profile-for-england-2019.

  27. Helliwell JF, Layard R, Sachs JD, De Neve JE, Aknin LB, Wang S. World Happiness Report 2021 [Internet]. New York: Sustainable Development Solutions Network; 2021 [cited 2022 Sep 21]. Available from: https://happiness-report.s3.amazonaws.com/2021/WHR+21.pdf.

  28. Abolarin V, Foster S, Jones A, Lugton C, Miller S, Peng J et al. COVID-19 mental health and wellbeing surveillance: report [Internet]. {National Mental Health Intelligence Network}; 2020 Sep [cited 2022 Sep 21]. Available from: https://www.gov.uk/government/publications/covid-19-mental-health-and-wellbeing-surveillance-report.

  29. Pierce M, Hope H, Ford T, Hatch S, Hotopf M, John A, et al. Mental health before and during the COVID-19 pandemic: a longitudinal probability sample survey of the UK population. Lancet Psychiatry. 2020;7(10):883–92.

    Article  PubMed  PubMed Central  Google Scholar 

  30. Haider S, Smith L, Markovic L, Schuch FB, Sadarangani KP, Lopez Sanchez GF et al. Associations between Physical Activity, Sitting Time, and Time Spent Outdoors with Mental Health during the First COVID-19 Lock Down in Austria. Int J Environ Res Public Health [Internet]. 2021;18(17). https://doi.org/10.3390/ijerph18179168.

  31. Young DR, Hong BD, Lo T, Inzhakova G, Cohen DA, Sidell MA. The longitudinal associations of physical activity, time spent outdoors in nature and symptoms of depression and anxiety during COVID-19 quarantine and social distancing in the United States. Prev Med. 2022;154:106863.

    Article  PubMed  Google Scholar 

  32. Ohrnberger J, Fichera E, Sutton M. The relationship between physical and mental health: a mediation analysis. Soc Sci Med. 2017;195:42–9.

    Article  PubMed  Google Scholar 

  33. Naylor C, Parsonage M, McDaid D, Knapp M, Fossey M, Galea A. Long-term conditions and mental health. The cost of co-morbidities. The King’s Fund and Centre for Mental Health; 2012 Feb.

  34. Pikkemaat M, Nymberg VM, Nymberg P. Structured assessment of modifiable lifestyle habits among patients with mental illnesses in primary care. Sci Rep. 2022;12(1):12292.

    Article  ADS  CAS  PubMed  PubMed Central  Google Scholar 

  35. Diener E, Chan MY. Happy people live longer: subjective well-being contributes to health and longevity. Appl Psychol Health Well Being. 2011;3(1):1–43.

    Article  Google Scholar 

  36. Zaman R, Hankir A, Jemni M. Lifestyle Factors and Mental Health. Psychiatr Danub. 2019;31(Suppl 3):217–20.

    PubMed  Google Scholar 

  37. Sapranaviciute-Zabazlajeva L, Sileikiene L, Luksiene D, Tamosiunas A, Radisauskas R, Milvidaite I, et al. Lifestyle factors and psychological well-being: 10-year follow-up study in Lithuanian urban population. BMC Public Health. 2022;22(1):1011.

    Article  PubMed  PubMed Central  Google Scholar 

  38. Tereshkovich G. Horticultural Therapy: a Review1. HortScience. 1973;8(6):460–1.

    Article  Google Scholar 

  39. Hefley PD. Horticulture: a therapeutic tool. J Rehabil. 1973;39(1):27–9.

    CAS  PubMed  Google Scholar 

  40. Gascon M, Sánchez-Benavides G, Dadvand P, Martínez D, Gramunt N, Gotsens X, et al. Long-term exposure to residential green and blue spaces and anxiety and depression in adults: a cross-sectional study. Environ Res. 2018;162:231–9.

    Article  CAS  PubMed  Google Scholar 

  41. Kühn S, Mascherek A, Filevich E, Lisofsky N, Becker M, Butler O et al. Spend time outdoors for your brain - an in-depth longitudinal MRI study. World J Biol Psychiatry. 2021;1–7.

  42. Hartig T, Mitchell R, de Vries S, Frumkin H. Nature and health. Annu Rev Public Health. 2014;35:207–28.

    Article  PubMed  Google Scholar 

  43. Pearson DG, Craig T. The great outdoors? Exploring the mental health benefits of natural environments. Front Psychol. 2014;5:1178.

    Article  PubMed  PubMed Central  Google Scholar 

  44. Alaimo K, Beavers AW, Crawford C, Snyder EH, Litt JS. Amplifying Health through Community gardens: a Framework for advancing Multicomponent, behaviorally based Neighborhood interventions. Curr Environ Health Rep. 2016;3(3):302–12.

    Article  PubMed  Google Scholar 

  45. Soga M, Gaston KJ, Yamaura Y. Gardening is beneficial for health: a meta-analysis. Prev Med Rep. 2017;5:92–9.

    Article  PubMed  Google Scholar 

  46. Genter C, Roberts A, Richardson J, Sheaff M. The contribution of allotment gardening to health and wellbeing: a systematic review of the literature. Br J Occup Ther. 2015;78(10):593–605.

    Article  Google Scholar 

  47. Hawkins JL, Thirlaway KJ, Backx K, Clayton DA. Allotment gardening and other leisure activities for stress reduction and healthy aging. Horttechnology. 2011;21(5):577–85.

    Article  Google Scholar 

  48. Wood CJ, Pretty J, Griffin M. A case–control study of the health and well-being benefits of allotment gardening. J Public Health. 2016;38(3):e336–44.

    Article  Google Scholar 

  49. Machida D. Relationship between Community or Home Gardening and Health of the Elderly: A Web-Based Cross-Sectional Survey in Japan. Int J Environ Res Public Health [Internet]. 2019;16(8). https://doi.org/10.3390/ijerph16081389.

  50. Soga M, Cox DTC, Yamaura Y, Gaston KJ, Kurisu K, Hanaki K. Health Benefits of Urban Allotment Gardening: Improved Physical and Psychological Well-Being and Social Integration. Int J Environ Res Public Health [Internet]. 2017;14(1). https://doi.org/10.3390/ijerph14010071.

  51. Wang D, MacMillan T. The benefits of Gardening for older adults: a systematic review of the literature. Act Adapt Aging. 2013;37(2):153–81.

    Google Scholar 

  52. Chalmin-Pui LS, Roe J, Griffiths A, Smyth N, Heaton T, Clayden A, et al. It made me feel brighter in myself- the health and well-being impacts of a residential front garden horticultural intervention. Landsc Urban Plan. 2021;205:103958.

    Article  Google Scholar 

  53. van den Berg AE, van Winsum-Westra M, de Vries S, van Dillen SME. Allotment gardening and health: a comparative survey among allotment gardeners and their neighbors without an allotment. Environ Health. 2010;9:74.

    Article  PubMed  PubMed Central  Google Scholar 

  54. Alaimo K, Packnett E, Miles RA, Kruger DJ. Fruit and vegetable intake among urban community gardeners. J Nutr Educ Behav. 2008;40(2):94–101.

    Article  PubMed  Google Scholar 

  55. Litt JS, Soobader MJ, Turbin MS, Hale JW, Buchenau M, Marshall JA. The influence of social involvement, neighborhood aesthetics, and community garden participation on fruit and vegetable consumption. Am J Public Health. 2011;101(8):1466–73.

    Article  PubMed  PubMed Central  Google Scholar 

  56. Kunpeuk W, Spence W, Phulkerd S, Suphanchaimat R, Pitayarangsarit S. The impact of gardening on nutrition and physical health outcomes: a systematic review and meta-analysis. Health Promot Int. 2020;35(2):397–408.

    Article  PubMed  Google Scholar 

  57. Nova P, Pinto E, Chaves B, Silva M. Urban organic community gardening to promote environmental sustainability practices and increase fruit, vegetables and organic food consumption. Gac Sanit. 2020;34(1):4–9.

    Article  PubMed  Google Scholar 

  58. Demark-Wahnefried W, Cases MG, Cantor AB, Frugé AD, Smith KP, Locher J, et al. Pilot randomized controlled trial of a home Vegetable Gardening intervention among older Cancer survivors shows feasibility, satisfaction, and promise in improving Vegetable and Fruit Consumption, Reassurance of Worth, and the trajectory of Central Adiposity. J Acad Nutr Diet. 2018;118(4):689–704.

    Article  PubMed  PubMed Central  Google Scholar 

  59. Barnidge EK, Hipp PR, Estlund A, Duggan K, Barnhart KJ, Brownson RC. Association between community garden participation and fruit and vegetable consumption in rural Missouri. Int J Behav Nutr Phys Act. 2013;10:128.

    Article  PubMed  PubMed Central  Google Scholar 

  60. Sommerfeld AJ, McFarland AL, Waliczek TM, Zajicek JM. Growing minds: evaluating the relationship between Gardening and Fruit and Vegetable Consumption in older adults. Horttechnology. 2010;20(4):711–7.

    Article  Google Scholar 

  61. Sarti A, Dijkstra C, Nury E, Seidell JC, Dedding C. I eat the vegetables because I have grown them with my own hands’: children’s perspectives on School Gardening and Vegetable Consumption. Child Soc. 2017;31(6):429–40.

    Article  Google Scholar 

  62. Zick CD, Smith KR, Kowaleski-Jones L, Uno C, Merrill BJ. Harvesting more than vegetables: the potential weight control benefits of community gardening. Am J Public Health. 2013;103(6):1110–5.

    Article  PubMed  PubMed Central  Google Scholar 

  63. Davis JN, Ventura EE, Cook LT, Gyllenhammer LE, Gatto NM. LA Sprouts: a gardening, nutrition, and cooking intervention for latino youth improves diet and reduces obesity. J Am Diet Assoc. 2011;111(8):1224–30.

    Article  PubMed  Google Scholar 

  64. Duncan MJ, Eyre E, Bryant E, Clarke N, Birch S, Staples V, et al. The impact of a school-based gardening intervention on intentions and behaviour related to fruit and vegetable consumption in children. J Health Psychol. 2015;20(6):765–73.

    Article  PubMed  Google Scholar 

  65. Tharrey M, Darmon N. Urban collective garden participation and health: a systematic literature review of potential benefits for free-living adults. Nutr Rev [Internet]. 2021; https://doi.org/10.1093/nutrit/nuaa147.

  66. Audate PP, Fernandez MA, Cloutier G, Lebel A. Scoping review of the impacts of urban agriculture on the determinants of health. BMC Public Health. 2019;19(1):672.

    Article  PubMed  PubMed Central  Google Scholar 

  67. Garcia MT, Ribeiro SM, Germani ACCG, Bógus CM. The impact of urban gardens on adequate and healthy food: a systematic review. Public Health Nutr. 2018;21(2):416–25.

    Article  PubMed  Google Scholar 

  68. Machida D, Kushida O. The Influence of Food Production Experience on Dietary Knowledge, Awareness, Behaviors, and Health among Japanese: A Systematic Review. Int J Environ Res Public Health [Internet]. 2020;17(3). https://doi.org/10.3390/ijerph17030924.

  69. Braveman P, Gottlieb L. The social determinants of health: it’s time to consider the causes of the causes. Public Health Rep. 2014;129(Suppl 2):19–31.

    Article  PubMed  PubMed Central  Google Scholar 

  70. Buck D, Bayliss A, Dougall D, Robertson R. A vision for Population Health. Towards a Healthier Future. King’s Fund; 2018. p. 87.

  71. Mind. Over 7 million have taken up gardening since the pandemic: new research shows spending more time in nature has boosted nation’s wellbeing [Internet]. mind.org. 2022 [cited 2022 Nov 25]. Available from: https://www.mind.org.uk/news-campaigns/news/over-7-million-have-taken-up-gardening-since-the-pandemic-new-research-shows-spending-more-time-in-nature-has-boosted-nation-s-wellbeing/.

  72. apse. State of the Market Survey. 2022 - Local Authority Allotment Services [Internet]. {Association for Public Service Excellence}; 2022 Aug [cited 2022 Sep 17]. Available from: https://apse.org.uk/index.cfm/apse/members-area/briefings/2022/22-33-state-of-the-market-allotments/.

  73. Statista Research Department. Gardening in the United Kingdom (UK) - statistics & facts [Internet]. Statista. 2022 [cited 2023 Jan 22]. Available from: https://www.statista.com/topics/8393/gardening-in-the-uk/.

  74. Lin BB, Egerer MH, Kingsley J, Marsh P, Diekmann L, Ossola A. COVID-19 gardening could herald a greener, healthier future. Front Ecol Environ. 2021;19(9):491–3.

    Article  PubMed  PubMed Central  Google Scholar 

  75. Dobson M, Reynolds C, Warren P, Edmondson J. My little piece of the planet: the multiplicity of well-being benefits from allotment gardening. British Food Journal [Internet]. 2020; ahead-of-print. https://doi.org/10.1108/BFJ-07-2020-0593.

  76. Dunnett N, Qasim M. Perceived benefits to human well-being of urban gardens. Horttechnology. 2000;10(1):40–5.

    Article  Google Scholar 

  77. de Bell S, White M, Griffiths A, Darlow A, Taylor T, Wheeler B, et al. Spending time in the garden is positively associated with health and wellbeing: results from a national survey in England. Landsc Urban Plan. 2020;200:103836.

    Article  Google Scholar 

  78. Chalmin-Pui LS, Griffiths A, Roe J, Heaton T, Cameron R. Why garden?– attitudes and the perceived health benefits of home gardening. Cities. 2021;112:103118.

    Article  Google Scholar 

  79. Gulyas BZ, Edmondson JL. The contribution of household fruit and vegetable growing to self- sufficiency and dietary diversity. in review.

  80. Edmondson J, Blevins R, Cunningham H, Dobson M, Leake J, Grafius D. Grow your own food security? Integrating science and citizen science to estimate the contribution of own growing to UK food production. Plants, Planet: People; 2019.

    Book  Google Scholar 

  81. DeSalvo KB, Bloser N, Reynolds K, He J, Muntner P. Mortality prediction with a single general self-rated health question. A meta-analysis. J Gen Intern Med. 2006;21(3):267–75.

    Article  PubMed  PubMed Central  Google Scholar 

  82. Bopp M, Braun J, Gutzwiller F, Faeh D, Swiss National Cohort Study Group. Health risk or resource? Gradual and independent association between self-rated health and mortality persists over 30 years. PLoS ONE. 2012;7(2):e30795.

    Article  ADS  CAS  PubMed  PubMed Central  Google Scholar 

  83. Baćak V, Ólafsdóttir S. Gender and validity of self-rated health in nineteen European countries. Scand J Public Health. 2017;45(6):647–53.

    Article  PubMed  Google Scholar 

  84. Schat ACH, Kelloway EK, Desmarais S. The Physical Health Questionnaire (PHQ): construct validation of a self-report scale of somatic symptoms. J Occup Health Psychol. 2005;10(4):363–81.

    Article  PubMed  Google Scholar 

  85. Spence JT, Helmreich RL, Pred RS. Impatience versus achievement strivings in the type A pattern: differential effects on students’ health and academic achievement. J Appl Psychol. 1987;72(4):522–8.

    Article  CAS  PubMed  Google Scholar 

  86. Tennant R, Hiller L, Fishwick R, Platt S, Joseph S, Weich S, et al. The Warwick-Edinburgh Mental Well-being scale (WEMWBS): development and UK validation. Health Qual Life Outcomes. 2007;5:63.

    Article  PubMed  PubMed Central  Google Scholar 

  87. Garrow JS, Webster J. Quetelet’s index (W/H2) as a measure of fatness. Int J Obes. 1985;9(2):147–53.

    CAS  PubMed  Google Scholar 

  88. Cleghorn CL, Harrison RA, Ransley JK, Wilkinson S, Thomas J, Cade JE. Can a dietary quality score derived from a short-form FFQ assess dietary quality in UK adult population surveys? Public Health Nutr. 2016;19(16):2915–23.

    Article  PubMed  PubMed Central  Google Scholar 

  89. Government DHSCW, Department of Health Northern Ireland, England PHENHS, Improvement NHS. Chapter 12: Alcohol [Internet]. GOV.UK. 2021 [cited 2023 Jan 22]. Available from: https://www.gov.uk/government/publications/delivering-better-oral-health-an-evidence-based-toolkit-for-prevention/chapter-12-alcohol.

  90. Craig CL, Marshall AL, Sjöström M, Bauman AE, Booth ML, Ainsworth BE, et al. International physical activity questionnaire: 12-country reliability and validity. Med Sci Sports Exerc. 2003;35(8):1381–95.

    Article  PubMed  Google Scholar 

  91. Harada K, Lee S, Lee S, Bae S, Harada K, Suzuki T, et al. Objectively-measured outdoor time and physical and psychological function among older adults. Geriatr Gerontol Int. 2017;17(10):1455–62.

    Article  PubMed  Google Scholar 

  92. Stranges S, Samaraweera PC, Taggart F, Kandala NB, Stewart-Brown S. Major health-related behaviours and mental well-being in the general population: the Health Survey for England. BMJ Open. 2014;4(9):e005878.

    Article  PubMed  PubMed Central  Google Scholar 

  93. Stewart-Brown S, Samaraweera PC, Taggart F, Kandala NB, Stranges S. Socioeconomic gradients and mental health: implications for public health. Br J Psychiatry. 2015;206(6):461–5.

    Article  PubMed  Google Scholar 

  94. Pouso S, Borja Á, Fleming LE, Gómez-Baggethun E, White MP, Uyarra MC. Contact with blue-green spaces during the COVID-19 pandemic lockdown beneficial for mental health. Sci Total Environ. 2021;756:143984.

    Article  ADS  CAS  PubMed  Google Scholar 

  95. Ratcliffe MM, Merrigan KA, Rogers BL, Goldberg JP. The effects of school garden experiences on middle school-aged students’ knowledge, attitudes, and behaviors associated with vegetable consumption. Health Promot Pract. 2011;12(1):36–43.

    Article  PubMed  Google Scholar 

  96. Heim S, Stang J, Ireland M. A garden pilot project enhances fruit and vegetable consumption among children. J Am Diet Assoc. 2009;109(7):1220–6.

    Article  PubMed  Google Scholar 

  97. Milliron BJ, Ward D, Granche J, Mensinger J, Stott D, Chenault C, et al. Nature relatedness is positively Associated with Dietary Diversity and Fruit and Vegetable Intake in an Urban Population. Am J Health Promot. 2022;36(6):1019–24.

    Article  PubMed  Google Scholar 

  98. Revoredo-Giha C, Costa-Font M. Covid-19: the underlying issues affecting the UK’s food supply chains [Internet]. 2020 [cited 2020 Oct 23]. Available from: https://blogs.lse.ac.uk/businessreview/2020/03/25/covid-19-the-underlying-issues-affecting-the-uks-food-supply-chains/.

  99. Bazzano LA, Serdula MK, Liu S. Dietary intake of fruits and vegetables and risk of cardiovascular disease. Curr Atheroscler Rep. 2003;5(6):492–9.

    Article  PubMed  Google Scholar 

  100. Buijsse B, Feskens EJM, Schulze MB, Forouhi NG, Wareham NJ, Sharp S, et al. Fruit and vegetable intakes and subsequent changes in body weight in European populations: results from the project on Diet, obesity, and genes (DiOGenes). Am J Clin Nutr. 2009;90(1):202–9.

    Article  CAS  PubMed  Google Scholar 

  101. Park SA, Lee KS, Son KC. Determining Exercise intensities of Gardening tasks as a physical activity using metabolic equivalents in older adults. HortScience. 2011;46(12):1706–10.

    Article  Google Scholar 

  102. Blair SN. Evidence for success of exercise in weight loss and control. Ann Intern Med. 1993;119(7 Pt 2):702–6.

    Article  CAS  PubMed  Google Scholar 

  103. Donnelly JE, Smith B, Jacobsen DJ, Kirk E, Dubose K, Hyder M, et al. The role of exercise for weight loss and maintenance. Best Pract Res Clin Gastroenterol. 2004;18(6):1009–29.

    Article  PubMed  Google Scholar 

  104. Firth J, Gangwisch JE, Borisini A, Wootton RE, Mayer EA. Food and mood: how do diet and nutrition affect mental wellbeing? BMJ. 2020;369:m2382.

    Article  PubMed  PubMed Central  Google Scholar 

  105. Beyer KMM, Szabo A, Hoormann K, Stolley M. Time spent outdoors, activity levels, and chronic disease among American adults. J Behav Med. 2018;41(4):494–503.

    Article  PubMed  PubMed Central  Google Scholar 

  106. Pietilä M, Neuvonen M, Borodulin K, Korpela K, Sievänen T, Tyrväinen L. Relationships between exposure to urban green spaces, physical activity and self-rated health. J Outdoor Recreation Tourism. 2015;10:44–54.

    Article  Google Scholar 

  107. Thompson Coon J, Boddy K, Stein K, Whear R, Barton J, Depledge MH. Does participating in physical activity in outdoor natural environments have a greater effect on physical and mental wellbeing than physical activity indoors? A systematic review. Environ Sci Technol. 2011;45(5):1761–72.

    Article  ADS  CAS  PubMed  Google Scholar 

  108. Stockwell S, Trott M, Tully M, Shin J, Barnett Y, Butler L, et al. Changes in physical activity and sedentary behaviours from before to during the COVID-19 pandemic lockdown: a systematic review. BMJ Open Sport Exerc Med. 2021;7(1):e000960.

    Article  PubMed  Google Scholar 

  109. Hatch SL, Frissa S, Verdecchia M, Stewart R, Fear NT, Reichenberg A, et al. Identifying socio-demographic and socioeconomic determinants of health inequalities in a diverse London community: the South East London Community Health (SELCoH) study. BMC Public Health. 2011;11:861.

    Article  PubMed  PubMed Central  Google Scholar 

  110. Office for National Statistics. One in eight British households has no garden [Internet]. Office for National Statistics; 2020 [cited 2020 Oct 16]. Available from: https://www.ons.gov.uk/economy/environmentalaccounts/articles/oneineightbritishhouseholdshasnogarden/2020-05-14.

  111. Dobson MC, Edmondson JL, Warren PH. Urban food cultivation in the United Kingdom: quantifying loss of allotment land and identifying potential for restoration. Landsc Urban Plan. 2020;199:103803.

    Article  Google Scholar 

Download references

Acknowledgements

We would like to thank Dr Dan J Green for his advice on designing the statistical analyses used in this research.

Funding

This work was funded by the Engineering and Physical Sciences Research Council (EPSRC) under grant no. EP/N030095/1 and by an EPSRC PhD studentship.

Author information

Authors and Affiliations

Authors

Contributions

B.Z.G., S.J.C. and J.L.E. designed and conceptualised the research; B.Z.G. performed data collection and analysis and drafted the manuscript; J.L.E. and S.J.C. supervised the project and edited the manuscript. All authors have read and approved the final manuscript.

Corresponding author

Correspondence to Jill L. Edmondson.

Ethics declarations

Ethics approval and consent to participate

The project was granted ethical approval by the Ethics Committee of the School of Biosciences (formerly Department of Animal and Plant Sciences) of The University of Sheffield (project ref. 041219). The aim and content of the research, as well as the option to not answer any question, freedom to withdraw from the study, and confidentiality of the information provided, were explained to participants and their informed consent was obtained prior to their participation in the survey.

Consent for publication

Not applicable.

Competing interests

The authors declare that they have no competing interests.

Additional information

Publisher’s Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Electronic supplementary material

Below is the link to the electronic supplementary material.

Supplementary Material 1

Supplementary Material 2

Rights and permissions

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Gulyas, B.Z., Caton, S.J. & Edmondson, J.L. Quantifying the relationship between gardening and health and well-being in the UK: a survey during the covid-19 pandemic. BMC Public Health 24, 810 (2024). https://doi.org/10.1186/s12889-024-18249-8

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1186/s12889-024-18249-8

Keywords