Research & reports

Stephanie Larson · Open Scholarship Institutional Repository (Washington University in St. Louis) · United States

This project located West End community gardens in relation to select social determinants, including income level, occupier's ownership status, ethnic diversity, and population density.

Catalina Freixas, Pablo Moyano Fernandez · Suburban Sustainability · United States (St. Louis)

This paper examines the role of eco-urbanism in St. Louis, a shrinking city experiencing population loss and economic decline since the 1950s. It reviews the implementation and benefits of three eco-urbanism strategies: community gardens, greenways, and urban forests. The study identifies social, ecological, and economic benefits, and suggests further adoption of eco-urbanism ideology and improved implementation strategies by the municipal government.

Terry B DelValle, Lisa B Gaskalla, Joan B Kyle · · United States (Duval County)

Duval County Extension, in collaboration with partners, offered "Gardening for Grades" workshops to 71 teachers and school volunteers in Duval County, USA, to support school garden initiatives. Participants engaged in activities linking science, math, and literature to gardening, and received materials to start school gardens. Follow-up surveys indicated 12,214 sq ft of garden area was added, benefiting 2,292 students, with 92.9% of students exposed to new foods and 64.3% showing improved eating habits and increased physical activity.

Lauren Workman · Scholar Commons (University of South Carolina) · United States

This qualitative ethnographic study, conducted over eighteen months, explored the social processes of community engagement in an urban community garden. Data from field notes and in-depth interviews identified neighborhood leadership, a community-academic partnership, and the physical garden space as facilitators of engagement. The garden fostered social interactions, provided a safe gathering space, and served as a tool for neighborhood leaders to advocate for social and economic development.

Marianne Sarkis, Tiffany Lee, Steph Fenner, Erin Barta, Kristina Kalolo · Clark Digital Commons (Clark University) · United States

Research was conducted using free-list, pile-sort, interviews, and surveys to examine the association between community gardening and food justice among Clark community gardeners in Worcester, MA. The findings supported the conclusion that Clark community gardeners do not conform to the food justice interpretation of a community garden. Although both actors share similar methods and ideologies, neither is attempting to fit the other's definitions.

Laura Knapp, Jodi L. Sangster, Shannon L. Bartelt‐Hunt · International Journal for Service Learning in Engineering Humanitarian Engineering and Social Entrepreneurship · United States (Omaha NE)

This study investigated the influence of lead hyperaccumulating plants on lead uptake by vegetables in an urban community garden in Omaha, NE, a region with significant lead contamination. Tomatoes, carrots, and amaranth were grown alongside sunflowers and mustard greens (hyperaccumulators) in lead-contaminated soil. Data showed higher lead concentrations in the hyperaccumulators and suggested that their presence might have impacted the amount of lead available to surrounding vegetation. Previous work at the garden detected lead in produce, indicating a potential exposure pathway for humans.

Sara A. Quandt, Janae Dupuis, Caitlin A. Fish, Ralph B. D’Agostino · Preventing Chronic Disease · United States

This randomized, controlled feasibility study evaluated the feasibility of a Community-Supported Agriculture (CSA) intervention in an underresourced urban community in the United States. Fifty low-income women with children participated, with the intervention group (25 participants) receiving fresh produce and educational sessions for 16 weeks. A significant increase in household fruit and vegetable inventory was observed in the intervention group, but increases in consumption were not significant. Challenges included transportation and work schedules, yet most participants expressed interest in continued participation.

Laura Lavid · Journal of Agriculture Food Systems and Community Development · United States

This article discusses the impact of urban gardening on a city's food system, noting that while it is not the sole solution, it offers significant benefits beyond economics. It cites historical data from World War II, where 20 million victory gardeners produced 44% of fresh vegetables in the United States. Recent studies estimate community gardens can yield $500 to $2,000 worth of produce per family annually, and a Denver study found community gardeners ate significantly more fruits and vegetables than non-gardeners.

Kyle Kessler, Seth Umbenhauer, Alison R. Noble · Journal of the Pennsylvania Academy of Science · United States (Harrisburg)

Eight soil samples were collected from an urban land plot in Harrisburg, PA, to determine concentrations of copper, nickel, zinc, and lead and assess suitability for an urban garden. While copper, nickel, and zinc concentrations were below EPA recommended limits, lead concentrations ranged from 26 ± 1 mg/kg to 402+ mg/kg, with some samples exceeding EPA standards for heavy metals in home and vegetable gardens. This indicates potential lead contamination in the soil.

Bruno Henrique Comassetto, Gabriela P. Solalinde Z., João Vicente Rosa de Souza, Marcelo Trevisan, Paulo Ricardo Zilio Abdala, Carlos Alberto Vargas Rossi · Revista de Administração de Empresas · Brazil

A qualitative study with in-depth interviews of urban agriculture specialists and practitioners in nine neighborhoods of a large Brazilian capital explored the meaning of urban agriculture as a consumption phenomenon. The findings indicate a dual motivation for practicing urban agriculture: an extrinsic motivation (example) and an intrinsic motivation (well-being). The practice is linked to concerns for the environment, health, and personal well-being, as well as nostalgic respect and pride for cultural heritage.

Rachel E. Scherr, Rachel Cox, Gail Feenstra, Sheri Zidenberg‐Cherr · California Agriculture · United States (California)

Research indicates that garden-based nutrition education increases fruit and vegetable preferences and consumption in children, and Farm to School programs promote increased consumption of fruits and vegetables and participation in the National School Lunch Program. A survey of UC Cooperative Extension (UCCE) advisors and directors in California reported that all respondents implemented garden-based nutrition education and Farm to School programs, but evaluation occurred much less frequently.

Melvin Delgado · Columbia University Press eBooks · United States

This chapter focuses on community gardening as an intervention aimed at addressing obesity, tracing its history in the United States back to the late nineteenth century as a response to social and economic crises. While community gardens can achieve various social, economic, political, educational, and health-related goals, the chapter also discusses potential pitfalls of community gardening. It emphasizes a social justice perspective for community gardens, particularly regarding community inclusion and participatory democracy.

Marcos José de Abreu, Renato Barretto Barbosa Trivella, Letícia Oliveira de Melo, gisa Garcia, Alexandre Cordeiro, Óscar José Rover · · Brazil (Santa Catarina)

The Vida Nova community garden, established in 2009 in Jardim Janaina, Biguaçu, Santa Catarina, Brazil, serves women from rural and urban areas facing food and social insecurity. This project aimed to disseminate participatory agroecological methodologies in urban agriculture. It resulted in a 36-page educational booklet and a course, leading to group strengthening, increased community gardens, and diversified cultivation in the neighborhood.

Chris Zimmerman · Soil Horizons · United States

A narrative article profiling the work of soil scientist Samantha Langley-Turnbaugh of the University of Southern Maine, investigating lead contamination in urban soils in Portland, Maine. It traces the concern to the Great Fire of 1866, whose lead paint ash was spread across the city and used as landfill to extend the Portland peninsula, compounded by the city's historical ties to lead-producing industries. The article states that, across US cities generally, lead paint and leaded gasoline are the primary sources of soil lead contamination, and that this contamination is becoming a concern as urban gardening expands.

André Ganzarolli Martins, Ana Paula Tridapalli de Almeira · Cadernos de Agroecologia · Brazil

A report on nearly two years of small-scale agroecological seed production through a community garden project on the central campus of the Federal University of Santa Catarina in Florianópolis, Brazil. Seeds were cultivated within small agroecological and agroforestry systems, producing carrots, lettuce, sunflower, beans, green manure crops and others; harvest and storage details are described as crucial steps requiring special attention. The report states that seed production was fundamental to sustaining the plantings and, through donations, supported other urban agriculture and agroecology initiatives.

Nicholas A. Read · OhioLink ETD Center (Ohio Library and Information Network) · United States

A field-trial study conducted in the United States, where small-scale urban agriculture has become more prevalent due to the availability of abandoned property and demand for locally grown produce. Weed suppression is described as a major concern for urban growers, with mulch valued as an inexpensive, readily available control method. Black plastic mulch, the industry standard, is impermeable and difficult to remove and dispose of; newspaper end-rolls (unprinted remains from newspaper printing) are proposed as an alternative that is permeable and biodegradable but have a high C:N ratio that can reduce soil fertility and crop growth. Because plant residue alone requires large quantities for adequate weed suppression, combining newspaper with plant residues is proposed as a way to achieve adequate suppression with less material and a lower C:N ratio. The study's objective was to compare two continuous sheet mulches — newspaper and black plastic — with and without an underlying particulate mulch of killed cover crop, in field trials conducted in 2011 and 2012 measuring soil moisture, soil temperature, weed growth, weed removal cost, and collard (Brassica oleracea) performance in a low-input production system. The abstract does not report specific results.

Joshua Birky, Elizabeth Strom · Urban Geography · United States

A review of historical and contemporary literature on the U.S. community garden movement, combined with surveys of participants in three distinctive community gardens, compares today's movement with its predecessors. It concludes that a greater diversity of gardeners and gardening motivations, combined with changing views on urban land use, will make community gardens a more lasting feature of city neighborhoods.

Gina M. Bacigalupi · San José State University ScholarWorks (San Jose State University) · United States (California)

An online survey of more than 400 members of the California State University East Bay Concord Campus community (California, United States), conducted in 2013, measured stakeholder interest and willingness to contribute money, time and labor to a proposed educational farm at this non-land-grant public urban university. Support was high across all stakeholder groups, but students and those holding multiple campus roles reported greater interest than faculty and staff, while administrators reported the lowest likelihood of participating. Younger respondents and women anticipated greater interaction than older or male respondents; by income, middle-income respondents anticipated the largest financial contributions, while both the highest- and lowest-income groups anticipated the smallest contributions.

David DyckFehderau, Nicholas L. Holt, Geoff D.C. Ball, Noreen D. Willows · PubMed · Canada

A study in Alexander First Nation, central Alberta, Canada, used asset mapping with children to understand how community factors shape the lifestyle behaviors of First Nations children living on reserve, who are estimated to be 4.5 times more likely to be obese than Canadian children generally. Participants were a convenience sample of two high school students working at the local health centre and seven grade six children, who used maps, photographs and a town tour to identify 25 activity- or food-related places and spaces. Breakfast, lunch and snack foods (such as chocolate bars and potato crisps) were obtained at school, food and snacks at cultural gatherings, and snacks at the local store, with healthy food choices found to be limited; only two locations beyond the town site were identified for physical activity, and youth recommended building a leisure centre, selling healthier food at the local store, and developing a community garden and berry farm.

Liangtao Li, Weller Lorraine, Yuanyuan Tao, Zhenrong Yu, Li, Liangtao, Weller, Lorraine, Tao, Yuanyuan, Yu, Zhenrong · · United States (California)

A field survey of 14 community gardens in Los Angeles, United States, examined how the diversity and distribution pattern of urban vegetation varieties relates to gardeners' ethnic background and construction mode. A total of 439 plant varieties were identified, showing that community gardens function as an important species pool for the urban ecosystem and maintain rich native taxa resources, that the plants grown are mainly edible and play a significant role in protecting ethnic and regional native culture, and that the landscape structure and function of the vegetation are shaped by ethnic background and construction mode. The findings are discussed for their implications for urban green space planning and leisure agriculture in China.

Tim Glaza · ISU Red - Research and eData (Illinois State University) · United States

It has been a persistent challenge for community-based, small-to-medium-scale fruit and vegetable farmers to meet high demand for locally sourced food. Such producers have relied mainly on farm stands, farmers' markets, and community-supported agriculture (CSAs) to meet demand, but despite substantial growth in the number of farmers' markets and CSA subscriptions, a gap remains between community-based food producers and institutional, wholesale, and retail buyers. Regional food hubs are presented as a potentially critical piece for filling this gap. The Edible Economy Project, in partnership with Heartland Community College, worked on a regional food hub network project in central Illinois aimed at creating a more efficient and vibrant community-based food system. Per the USDA definition cited, a regional food hub is a business or organization that actively manages the aggregation, distribution, and marketing of source-identified food products, primarily from local and regional producers, to strengthen their ability to satisfy wholesale, retail, and institutional demand; food hubs are described as helping buyers and farmers connect and transact more efficiently. This piece places the community-based food system within the broader green economy and uses a case study approach to explain how a community with diverse stakeholders may develop a food hub.

Iris T. Stewart, Elizabeth K. Purner, Patricia D. Guzm ́n · Children Youth and Environments · United States (California)

In Santa Clara County (SCC), located at the southern end of the San Francisco Bay Region and marked by high income disparities and an ethnically diverse population, this study used surveys and Geographic Information Systems (GIS) to examine links between the presence and use of school gardens and the socioeconomic and ethnic composition of surrounding neighborhoods. Statistical analysis found that school gardens in SCC are more likely to exist in economically stronger and ethnically less-diverse neighborhoods, showing that garden provision is not equitably distributed. School gardens can be maintained with relatively modest resources — a coordinator, planting area, small budget, and school-community support — yet securing these resources can itself be a significant barrier for some schools. Because natural play areas suited to environmental exploration were not typically found at SCC schools, the study suggests school gardens can play an important role in reconnecting children with the natural world.

Renee Raiden Boyer, Ben Chapman · VTechWorks (Virginia Tech) · United States

This practical guide outlines recommended agricultural practices for food safety in school and community gardens, covering topics such as food safety, site selection, pesticides and fertilizers, handwashing, water and irrigation, composting, garden design and animals, sanitation and tools, a sample community garden layout, an FAQ, and a glossary.

Susan L. Johnson · Planning for higher education · United States

This article discusses urban agriculture on the campus of the Medical University of South Carolina (MUSC) in the United States, centered on the MUSC Urban Farm. Against a backdrop of rising chronic disease and obesity, it describes community gardens as improving nutritional status and increasing physical activity, community engagement, safety and local economic strength while providing environmental benefits, citing a study by Zick et al. (2013) in the American Journal of Public Health that found community garden participants had a significantly lower body mass index (BMI) than non-participants. The MUSC Urban Farm is presented as a living classroom where students, faculty, staff and the community explore the connection between food and health.

Rebecca J. McLain, Patrick T. Hurley, Marla R. Emery, Melissa R. Poe · Local Environment · United States

Drawing on an integrated urban political ecology and human-plant geographies framework, researchers examined foraging for wild food across Baltimore, New York City, Philadelphia, and Seattle. Foraging is a vibrant, ongoing practice among diverse urban residents, yet regulations, planning practices, and the attitudes of conservation practitioners frame it as out of place in urban landscapes and something to be discouraged.