Abstract
Background: Despite the increasing number of studies on gardening and health, evidence of health benefits of community gardening is limited by cross-sectional design. The “JArDinS” quasi-experimental study aimed to assess the impact of community garden participation on the adoption of more sustainable lifestyles in French adults. Methods: Individuals starting gardening in community gardens in Montpellier (France) in 2018 (N=66) were compared to pairwise matched individuals with no experience in community gardening (N=66). Monthly household food supplies, physical activity measured by accelerometers and questionnaires on physical, mental and social well-being, sensitivity to food waste, and connection with nature were used to explore sustainability of lifestyles in social/health, environmental and economic dimensions. Data were collected at baseline (t0) and 12 months later (t1). Linear mixed models were used to determine the independent effect of community gardening on investigated lifestyles components. In-depth interviews were conducted at t1 with 15 gardeners to better understand changes that may have occurred in gardeners’ lives during the first year of gardening.Results: At t0, gardeners had lower education level, lower BMI and reported lower percentage of meals consumed outside of the home in total household meals compared to non-gardeners (p<0.05). At t1, the mean weight of fruit and vegetables harvested from the garden was 19.5g/d/p. Participating in the community garden had no significant impact on any of the social/health, environmental and economic lifestyle components investigated. Qualitative interviews suggested the existence of pre-established health and environmental consciousness in some gardeners and revealed several barriers to the participation such as lack of time, lack of gardening knowledge, difficulty of gardening, health problems and conflicts with other gardeners. Conclusions: Using a longitudinal design allowing causality assessment, no impact was observed of the first year of community gardening on lifestyle sustainability. The pre-established sensitivity to sustainability and the various barriers encountered by new gardeners might explain the absence of community gardening impact. Further rigorous longitudinal studies are needed to determine whether or not community gardening is a relevant public health tool.Trial registration: The study was registered at clinicaltrials.gov as NCT03694782. Date of registration: 3rd October 2018, retrospectively registered.
Community Gardening Works! American Community Garden Association's 32nd Annual Conference August 18-21, 2011, New York, NY