Research & reports

Joshua Sbicca · · United States (Colorado)

This study investigated the potential for urban agriculture to drive green gentrification, using Denver, Colorado, as a case study. Urban agriculture was shown to drive gentrification and act as a force for displacement, even when advocates are aware of its exclusionary potential for urban farmers and residents. The research argues that political economy and cultural forces create neighborhood disinvestment and economic marginalization, and urban agriculture contributes to green gentrification through a process of revalorization that exploits rent gaps.

Tara Hubbard · Carolina Digital Repository (University of North Carolina at Chapel Hill) · United States (Spokane)

In Spokane, United States, city planners are exploring the potential of zoning ordinances to create healthier food environments in response to rising rates of obesity and chronic diseases. Some low- or mixed-income neighborhoods have limited access to healthy foods, and this brief provides specific guidance on utilizing zoning to increase access to farmers' markets, urban agriculture, and healthy food retail, while also limiting fast foods.

Suzanna Elkin · ScholarWorks -A service of University of Vermont Libraries (University of Vermont) · United States

This dissertation presents a mixed-methods case study of a comprehensive Farm-to-School (FTS) program in a northern California school district. It comprises three papers, each exploring one of the "3-C" domains: classroom, cafeteria, and community. The first study qualitatively examines teacher involvement in FTS, the second uses mixed methods to research a new school lunch program, and the third examines the community aspect.

Bianca Jacqueline Silva · · Brazil

This study describes a project for implementing a community garden at the Itabira campus of the Federal University of Itajubá. The project began with dialogue among campus workers and aims to foster greater involvement with the university community and local population. The garden is planned as a space for observation, cultivation, and leisure, potentially contributing to education and activities on ecology, environmental education, and integrated management of solid and organic waste, with positive impacts on the local environment and participants' health.

August John Hoffman, Jordan Seitz, Anthonie Collins, Rich Downs · Journal of Prevention & Intervention in the Community · United States

This study describes the experiences of two community psychology students participating in "green" volunteer sustainable programs. One student worked with young men in a youth detention facility maintaining a vegetable garden, while another organized a community apple harvest in Wyoming, MN. Participants were interviewed about their subjective experiences and how these programs improved understanding of diverse cultures and the value of outdoor "green" voluntary programs.

Fábia Massarani, Marta Citelli, Daniela Silva Canella, Josely Correa Koury · PeerJ · Brazil (Rio de Janeiro)

This pilot study evaluated the eating habits of 83 adolescent athletes in an experimental school in Rio de Janeiro from 2013 to 2016. Following the implementation of a school garden, experimental kitchen activities, and health promotion classes, the frequency of raw salad and fruit consumption increased, suggesting that integrated healthy eating promotion programs may improve eating habits.

Franklin Wagner, Lindsey Payne · Purdue Journal of Service-Learning and International Engagement · United States (Lafayette)

In summer 2016, Purdue University researchers collaborated with Lafayette's GrowLocal Urban Gardens Network in Lafayette, Indiana, to conduct a baseline analysis of current community gardening initiatives. Using qualitative and quantitative data collection methods, they identified motivations and barriers to participation through stakeholder interviews and focus groups. The study indicated that urban gardens as community spaces may serve a greater purpose than providing fresh food, and its results informed a planning document for GrowLocal with strategic recommendations for governance, communication, event integration, and collaborative grants.

Karla L. Hanson, Leah C. Volpe, Jane Kolodinsky, Grace Hwang, Weiwei Wang, Stephanie Jilcott Pitts, Marilyn Sitaker, Alice S. Ammerman, Rebecca A. Seguin‐Fowler · Nutrients · United States

A cross-sectional study in August 2017 surveyed cost-offset Community Supported Agriculture (CO-CSA) applicants (purchasers n=46, non-purchasers n=18) and a comparison sample (n=105) of low-income adults with children. CO-CSA applicants reported better knowledge, self-efficacy, home habits, and diet than the comparison sample. Among applicants, purchasers and non-purchasers had equivalent knowledge, attitudes, and beliefs, but children in purchaser households consumed significantly more fruits and vegetables (4.14 vs. 1.83 cups, p = 0.001).

Candis M. Hunter, Dana Williamson, Melanie Pearson, Eri Saikawa, Matthew O. Gribble, Michelle C. Kegler · Local Environment · United States (Atlanta)

This study used five focus groups with Atlanta community garden leaders to investigate perspectives on composting, hygiene, and mulching, which are practices to reduce exposure to soil contaminants. Gardeners cited a need for more funding, volunteers, and training. A primary barrier to composting and mulching was concern about contamination of source materials, and participants did not directly link these practices to reducing soil contaminant exposure. Hygiene challenges included concerns about beneficial bacteria, inadequate water access, and limited supplies.

Mónica D. Ramírez‐Andreotta, Abigail Tapper, Diamond Clough, Jennifer S. Carrera, Shana Sandhaus · International Journal of Environmental Research and Public Health · United States

Through semi-structured interviews with 17 community gardeners in the Boston area, this study characterized gardeners' intrinsic and extrinsic motivations, their perceptions of soil quality and environmental responsibility, awareness of past land use, and gardening behavior. Gardeners reported knowledge of their garden's historical past and concerns about soil quality, theft, trash maintenance, animal waste, and produce loss to foraging animals. The findings are reported as directly informing environmental health exposure assessment by documenting gardening duration, activities that can lead to incidental soil ingestion, and consumption patterns of locally grown produce.

Renate M. Winkels, Rick Artrip, Maegan Tupinio, Susan Veldheer, Smita Dandekar, Daniel R. George · Journal of Adolescent and Young Adult Oncology · United States

The feasibility of a mentored gardening intervention for adolescent and young adult (AYA) cancer survivors in a hospital-based community garden was evaluated as a way to improve diet and physical activity. Over the 2018 growing season, AYA cancer survivors tended a garden plot under the mentorship of an experienced (master) gardener and were successful in planting and harvesting vegetables in partnership with their mentors, with qualitative data used to assess challenges, facilitators, and areas for future programmatic improvement and replication.

Athena K. Ramos, Natalia Trinidad, Sonja Bickford, Nate Bickford, Julia Torquati, Maria Mushi · Collaborations A Journal of Community-Based Research and Practice · United States

A study conducted a bilingual online survey to gauge public support for a planned community garden in South Omaha, Nebraska, and to prioritize messaging strategies about its potential benefits. Assessing interest, perceived benefits, purposes, and desired co-located functions, the study identified the value of developing local data, the importance of an asset-based framework, the need to understand community perceptions of potential benefits, the challenge of balancing community research efforts, and the need for partnerships to expand a project's reach.

Micajah Daniels, Courtney Coughenour · Digital Scholarship - UNLV (University of Nevada Reno) · United States

This project uses Black Feminist Health Studies as an interdisciplinary approach to analyze the holistic impacts of community gardens on nutrition behaviors. It demonstrates, through a Socio-Ecological Wellness Wheel, that the implementation of green spaces such as community gardens correlates with both benefits and unintended negative consequences, including green gentrification, and proposes this audit tool as a way to empirically measure garden quality and the nutrition environment affecting fruit and vegetable consumption among food-insecure populations.

Adriana Rodrigues Moreira, Rodrigues, Ana Beatriz Nizer, Poiani, Jaqueline Oliveira, Santos, Luciana Beatriz dos, França, Maria Gabriela de Lima · LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) · Brazil

This case study documents the introduction of a school garden at a municipal early childhood education center (CMEI) in São José dos Pinhais, Brazil, tracing the process from soil preparation and fertilizing, through measuring planting beds and selecting crops, to harvest by students and teachers. Data came from field research, literature review, interviews, photographic records, and site visits. The main result was construction of the garden, from site maintenance to seedling planting, carried out by staff with student help. The study concludes the garden raised environmental awareness and supplemented meals at the institution, but this is a descriptive case report without a comparison group or quantitative outcome measures.

Blakely Brown, Laura Dybdal, Curtis W. Noonan, Maja Pedersen, Martin Parker, Mary Corcoran · Health Promotion Practice · United States

On an American Indian reservation, a community-based participatory research approach applying a social-ecological model identified the factors that promote or hinder community gardens and the use of locally grown food, and tested the feasibility of a group gardening program for Native American adults. Interviews with nine key stakeholders identified knowledge/experience, self-efficacy, Elders, traditional ways, community values, generational gaps and local tribal policy as influencing factors. In a feasibility study with 20 Native American adults with prediabetes or diabetes, Profile of Mood States scores showed consistently more positive change among group gardening participants than among a comparison group.

Jennifer M. Kreslake · Health Equity · United States

An online survey of 605 residents in California (Los Angeles/Orange), Florida (Miami-Dade/Broward), and Arizona (Maricopa) counties, conducted in July 2018, used multivariable ordered logistic regression to test whether perceived importance of local climate change adaptation and mitigation measures differed by social and medical factors, controlling for age, political party, and county. Lower income was associated with higher perceived importance of improved emergency alerts, government-subsidized air conditioners and energy-efficient appliances, strengthening buildings against extreme weather, greenhouse gas regulation, "cooling" urban planning technologies, and expanding community gardens and local agriculture. Black respondents rated evacuation services for those with financial barriers, subsidized appliance costs, and government communication about climate impacts as significantly more important than non-Black, non-Hispanic respondents, while Hispanic respondents rated several measures, including improved emergency alerts, as significantly more important than non-Hispanic respondents.

Siegner A., Sowerwine J., Acey C. · Sustainability 10(9):2988 · United States

Systematic review of US urban agriculture and food systems literature. Finds strong emphasis on multiple benefits but few studies robustly measuring urban farms' impact on food security in low-income communities.

Bail J. R., Frugé A. D., Cases M. G., De Los Santos J. F., Locher J. L., Smith K. P., Cantor A. B., Cohen H. J., Demark-Wahnefried W. · Journal of the Academy of Nutrition and Dietetics 118(4):689-704 · United States

Pilot RCT of a home vegetable gardening intervention among older cancer survivors. The program was feasible and well-accepted, suggesting improved fruit and vegetable consumption, reassurance of worth, and attenuated waist-circumference increase.

Korn A., Bolton S.M., Spencer B., Alarcon J.A., Andrews L., Voss J.G. · International Journal of Environmental Research and Public Health, Vol. 15, No. 8 · Peru (Lima)

A longitudinal pilot study examining the feasibility and health outcomes of household garden implementation in a Lima urban slum, collecting anthropometric and mental health data at baseline, 6 months, and 12 months, finding positive associations with nutritional status and wellbeing.

Lucy O. Diekmann, Leslie C. Gray, Gregory A. Baker · Renewable Agriculture and Food Systems · United States (Santa Clara County)

This research evaluates how three types of urban gardens in Santa Clara County, California—home gardens, community gardens, and community food security (CFS) program gardens for low-income families—contribute to food security using a multidimensional framework. In summer 2015, median production ranged from 26 kg (CFS participants) to 56 kg (home gardeners), enough for at least one adult to meet federal vegetable guidelines; interviews further showed gardeners valued knowledge, control, freshness, flavor, organic methods, and cultural acceptability, not just quantity.

Dietlinde Heilmayr, Howard S Friedman · Journal of Health Psychology · United States

Framing community gardening as a promising but under-evidenced multifaceted health intervention, this paper presents one of the first experimental studies on the topic. The results showed promise for aspects of community gardening while underscoring the need for more rigorous methodologies, and the article offers a framework for studying the health effects of community gardening and similar multifaceted health-promotion efforts.

· Chemosphere · USA (Minnesota)

Perfluoroalkyl substances (PFASs) were found in garden produce grown at homes with a history of PFAS-contaminated drinking water, showing home gardens can be a PFAS exposure pathway.

Wanda Martin, Lindsey Vold · Health Promotion and Chronic Disease Prevention in Canada · Canada (Saskatoon)

This qualitative case study examined how participation in the "askîy" urban agriculture project in Saskatoon, Canada, empowered young adults and built food-growing capacity. Seven interns (aged 19-29) participated in 2015, and their experiences were analyzed using a sustainable livelihoods framework. Findings indicated that collaborative engagement fostered connections, influenced grocery shopping habits towards more vegetables, and motivated interns to continue gardening and apply their knowledge in their home communities.

Leandro Nascimento Bertoldi, Pamela Johanna Menéndez Velásquez · Revista panorama/Panorama. Cuba y salud · Brazil

A course on Agroecology was conducted in Jequié, Bahia, Brazil, focusing on creating organic community gardens and training communities in health promotion, disease prevention, and food and environmental education. The project identified farmers who transitioned from using agrotoxins to biological control, resulting in increased local biodiversity and encouraging community gardening. The initiative also fostered social empowerment, increased self-esteem, and developed collective discussion and production practices within the SUS.

Lorrilee McGregor, Pamela Toulouse, Marion Maar, Nancy L. Young · International Journal of Indigenous Health · Canada

A narrative analysis of eight focus groups with 33 caregivers in six First Nation communities in Canada explored determinants of dietary decisions. Caregivers identified changes in food systems due to factors like wage economy participation, low income, hunting/fishing regulations, and processed food availability. These factors have altered food systems and influenced dietary choices, leading communities to pursue initiatives such as community gardens, freezers, and hunting camps to regain food sovereignty.