Research & reports

Carlos Alberto Schettini Pinto · PubMed · United States

A 1997 survey on healthcare construction and design in the United States notes that managed care, despite appearances, creates opportunities for architectural and design firms. An example of this trend is the 1995 west campus expansion of East Texas Medical Center in Tyler, which included a nine-story medical office building featuring artwork and rooftop gardens.

Ishwarbhai C. Patel · Journal of Agricultural & Food Information · United States (Newark)

The Rutgers Urban Gardening (RUG) program in Newark, New Jersey, transformed 30 acres of wasteland into 1,900 food gardens in 1994, engaging 6,500 residents. This initiative produced over $915,000 worth of food and recycled nearly 4,000 tons of city leaves, saving participants approximately $4 million over five years. The program also fostered social interaction, improved diets for 44% of participants, and enhanced neighborhoods.

Tina M. Waliczek, Richard H. Mattson, Jayne M. Zajicek · Journal of Environmental Horticulture · United States

A nationwide survey of community gardeners in the United States investigated the relationship between community gardens and quality-of-life perceptions, based on Maslow's hierarchy of needs. The study found that race, gender, and city size influenced perceptions, with significant differences observed across racial/ethnic divisions and between gardeners in Los Angeles and New York. Community gardens were particularly important to African-American and Hispanic gardeners, and while men and women rated overall benefits similarly, women valued saving money and garden beauty more highly.

A. Mboganie-Mwangi, Dick Foeken · Leiden Repository (Leiden University) · Kenya (Nairobi)

A 1996 study in Nairobi, Kenya, compared the food security and nutritional status of low-income households engaged in urban agriculture with those not farming. It found that urban farmers primarily produced for home consumption and faced theft as a major problem. While the Undugu Society Urban Agriculture Project (USUAP) group showed better food situations and higher energy and protein intakes than other groups, all three groups had inadequate energy intake on average. The long-term beneficial effect of urban agriculture on nutritional status was negligible.

Tina M. Waliczek, J.M. Zajicek · HortScience · United States

This study initiated an environmental education garden program, "The Green Classroom," in eight schools across the Midwest and Texas, involving approximately 1000 third- through eighth-grade students. The program aimed to integrate garden activities into classroom lessons to reinforce curriculum. Researchers administered pre- and post-tests, including a psychological inventory and an environmental attitude survey, to examine the relationship between garden program participation and students' self-esteem, interpersonal relationships, attitude toward school, and environmental attitudes.

Beacon Mbiba · · Zimbabwe (Harare)

This paper addresses the implications of urban agriculture for urban management and poverty in Zimbabwe, covering various aspects such as off-plot cultivation in Harare, urban cultivation at home, urban maize markets, and institutional responses to uncontrolled urban cultivation. Evidence from Harare suggests that urban agriculture can be a counterproductive activity, highlighting challenges and conflicts in urban management.

James R. Preer, Ahmed N. Abdi, Harkewal S. Sekhon, George B. Murchison · Journal of Environmental Science and Health Part A Environmental Science and Engineering and Toxicology · Global

This study investigated cadmium (Cd) and zinc (Zn) concentrations in vegetables grown in community gardens on different urban soils. Vegetables from a low-pH urban soil without contamination history showed higher Cd and Zn levels than those from a reclaimed landfill with digested sewage sludge, and also higher than a low-metal, neutral-pH site. Liming on the low-pH site reduced Cd and Zn concentrations in beet, lettuce, radish, and Swiss chard leaves, reaching background levels after four years. The findings indicate that soil pH is more important than total soil Cd and Zn in determining vegetable metal availability.

Kenneth Lynch · Sustainable Development · Africa

This paper examines Agenda 21's Chapter 7 on sustainable human settlements and surveys the growing body of publications on food supply to urban areas in the less developed world, with a particular focus on fruit and vegetables, urban agriculture, and food marketing. It discusses the main aspects of Agenda 21's Chapter 7 relating to sustainable human settlements and the role emerging research on urban food systems can play in establishing sustainable development in cities of less developed countries, with particular attention paid to Dar es Salaam, Tanzania.

H. B. Tukey · Cambridge University Press eBooks · Global

This paper defines urban horticulture as the functional use of plants to improve urban environments. It states that urban horticulture contributes to screening views, food production, reducing noise and air pollution, ameliorating urban climates, and improving human well-being. The abstract notes that information on city plants often comes from observations and anecdotes, and that strategies from commercial agriculture do not always apply well to urban horticulture.

William T. Hlubik, Michael W. Hamm · HortScience · United States

A 1994 conference presentation abstract (HortScience) describing the need for a comprehensive model to measure the impact of community gardening on the physical, nutritional and sociological structures of at-risk urban communities in the United States, and reporting on the stepwise development and implementation of an evaluation tool built to address that need. Developed in partnership with horticultural researchers, urban gardeners, dietitians and sociologists, the tool integrates established evaluative methods with new measurement techniques into a statistical survey. Preliminary findings from the first year of survey administration were to be shared at the presentation, but no specific results are given in the abstract itself.

Lee M · PubMed · Ethiopia

In Ethiopia, urban agriculture faces significant challenges due to government disapproval of public land use for farming and difficulty in obtaining credit. A 1983 survey in Addis Ababa found that 17% of 1352 households produced their own food on less than 25 sq. meters, with 90% of non-farmers citing lack of land. Despite urban agricultural cooperatives demonstrating 70% higher member income, their lack of government legalization prevents access to loans for productivity improvement.

· PubMed · Global

This paper emphasizes the need for technological infrastructure to maximize the value of medicinal plants within primary health care (PHC). The WHO Programme on Traditional Medicine highlights the importance of appropriate drug availability in PHC and recommends cultivating medicinal plants in home or community gardens. It advocates for strengthening data gathering and analysis capabilities for economic mapping of medicinal flora in developing countries and for clinical research on the safety and efficacy of herbal medicines used by traditional health practitioners.

Joel Flagler · HortScience · Global

An overview of horticultural therapy, describing how trained therapists prescribe and administer planting and gardening activities for people with physical, mental and social disabilities in hospitals, geriatric centers, schools, rehabilitation facilities, community gardens and prisons. It states that research measuring effectiveness in clinical and correctional settings, and databases documenting the benefits, are underway, without giving specific figures or results.

Rakodi C. · The Journal of Modern African Studies · Zambia (Lusaka)

A field-based study of Zambian urban settlements in the 1970s-1980s, finding that urban cultivation serves as a vital survival strategy for low-income households and warrants integration into urban development planning.

Kasipathy Kailasapathy · Ecology of Food and Nutrition · Sri Lanka

This study developed a model school garden (28m²) in Sri Lanka to provide part of the nutritional requirements for school children. The garden produced an average daily yield of 813g of vegetables, supplying significant percentages of a 10-12 year old child's recommended daily intake, including 115% of calcium, 151% of iron, 557% of vitamin A, and 1222% of vitamin C.

M. Krelowska‐Kulas · Food / Nahrung · Poland (Kraków)

An investigation using atomic absorption spectroscopy in Kraków, Poland, found that vegetables from urban allotment gardens had average levels of lead, cadmium, copper, zinc, and iron several times higher than control samples from farms 100 km away. In some cases, maximum levels of certain elements approached the admissible limit. However, average levels of lead and cadmium in pigs and cattle showed no reason for objection.

P. van Lune · Netherlands Journal of Agricultural Science · Netherlands

A study analyzed cadmium (Cd) and lead (Pb) in soils and crops from 57 allotment gardens in potentially contaminated areas of the Netherlands. The median Cd and Pb concentrations in the soil samples were found to be higher than those in soils used for arable farming and horticulture. However, Cd and Pb concentrations in the crops themselves were normal.

Williams, Patrick Neal. · K-State Research Exchange (Kansas State University) · United States (Manhattan, Kansas)

A five-month study of children gardening in the Manhattan Community Garden, Manhattan, Kansas, investigated differences in self-esteem, horticultural knowledge, and garden quality. Children without other siblings gardening showed higher self-esteem, gained more horticultural knowledge, and had better appearing gardens than children with other siblings gardening.

Yuzo Uchida · Journal of the City Planning Institute of Japan · Japan

This study aims to clarify the situation and types of community farms in Japan, their usage patterns, and their impact on the lives of urban residents. It notes the strong demand for community farms for cultivating vegetables and flowers among urban residents. Various types of community farms exist, including allotment gardens, Japanese Kleingartens, self-supplying community farms, and full-scale orchards in the countryside.

H. B. Tukey · HortScience · Global

Urban horticulture is defined as a scientific field focused on the functional uses of plants to maintain and improve urban environments. These functional uses extend beyond aesthetics to include screening against wind and views, influencing climate, reducing noise, combating air pollution, providing food, and enhancing human well-being in densely populated areas. The audience for urban horticulture includes landscape professionals, plant societies, and amateur horticulturists.

Pauline Raphaely · Birkhäuser Basel eBooks · South Africa

Food Gardens Unlimited is an educational project in South Africa that teaches disadvantaged urban populations to grow food in small areas using limited resources. The project provides five-day training courses, step-by-step directions, and subsidized seeds through existing institutions. It aims to deliver physical, emotional, and spiritual benefits to participants.

Howard J. Atkinson, Naomi Gibson, Harry C. Evans · Plant Pathology · United Kingdom (Leeds)

A survey of 140 growers across 12 allotment sites around Leeds, UK, identified a wide range of crop pests, with brassicas, potatoes, and carrots being more frequently damaged. Soil samples from 33 plots at 10 established sites and 6 plots at 2 new sites revealed potentially damaging levels of pale potato cyst nematode in 21 and 1 plots, respectively. Widespread overwintering populations of carrot fly larvae and pupae were also found in soil samples from eight sites.

T. M. Spittler, William A. Feder · Communications in Soil Science and Plant Analysis · United States

This study demonstrated a serious problem of lead contamination in Boston's urban environment by analyzing about 900 soil samples from backyards, play areas, community gardens, and playgrounds using X-ray fluorescence spectroscopy. An average lead level of 800 ppm was found, traceable to the past widespread use of lead paint. Selected plant species grown in soils with lead levels ranging from 100–2000 ppm showed differing affinities for lead uptake, with fruits taking up less than roots and roots less than tops, indicating positive translocation of lead from soil into plant tissue.

William E. Roweton · Psychological Reports · Global

This study discussed the instructional advantages of growing vegetable seedlings in an introductory child psychology course. The project drew students' attention to the importance of nutrition in child development, as well as the popularity and practicalities of urban gardening. Additionally, the activity of "raising" plants proved to be a provocative analogy to "rearing" children.

Steven L. Doud, Greg Pagano · HortScience · United States

Many American urban dwellers are rediscovering that gardens can provide inexpensive, high-quality food, recreation, and relaxation. This "green thumb boom" is particularly evident in the emergence of community garden projects in college communities, where students seek to supplement incomes and work with plants. While these projects vary in management philosophy and workload allocation, they share common goals of abundant food production and enjoyment for gardeners.