Research & reports

African Urban Gardening Research Network · National Center for Biotechnology Information (NCBI/PMC) · Sub-Saharan Africa

Systematic review of 47 peer-reviewed studies across sub-Saharan Africa (2000–2025) showing urban gardens support ecological functions including pollination, soil fertility, and microclimate regulation.

Olawole, M., Green, J., Mwangi, E. · Springer Environmental Science & Technology · Africa

Review of 45 urban agriculture case studies across 12 African countries showing urban farming reduces urban heat island effects by 2-3°C and improves air quality while providing food security for 200+ million residents.

Ermias Debie, Demsew Mengistie · Discover Sustainability · Ethiopia

This study investigated the determinants of Urban Agriculture (UA) and Green Infrastructure (GI) integration in Bahir Dar City, Northwest Ethiopia. Data were collected through surveys and analyzed using binary and ordinal logistic regression models. Findings revealed that a lack of awareness and lower education levels, such as no formal and primary education, significantly hinder the integration of UA and GI practices. Conversely, larger residential spaces and household sizes positively influence integration levels, with each additional household member increasing the score by 0.236 units for consumption needs, and each unit increase in residential site size raising the score by 0.004 units due to space availability.

Katie Schofield, Jacqueline Fanta, William Kolong Pioth, Alissa Cook, Samuel Owuor, Cherie Enns · Youth · Kenya

This youth-led study, involving 40 South Sudanese urban refugees (aged 19-32) in Kenya, mapped food supply chains and identified barriers to procuring, growing, and selling food. Findings indicate that improving the quality of life and food security for refugee youth is complex. Without education and improved livelihoods, including urban agricultural opportunities, their health and wellbeing will continue to be negatively affected.

Ola Akeem Bayonle, Raheem Wasiu Mayowa · Bioresources and Environment · Nigeria

This study in Ilorin, Nigeria, examined the role of informal land agents in supporting urban agriculture using a cross-sectional survey of 73 informal agents and 303 urban farmers. It found that most agents were male, aged 20-39, and land was primarily acquired through direct contact with owners (72.6%), with location being the main price factor (78.2%). A strong positive correlation was identified between informal land delivery systems and access to agricultural land, indicating these agents bridge gaps in the formal system.

Mumuni Adejumo · Journal of Health and Environmental Research · Nigeria (Ibadan)

This cross-sectional study surveyed 312 residents in Ibadan North Local Government Area, Nigeria, to document their knowledge and perception of using greywater for backyard cultivation of native herbs. The findings revealed that 70.7% of participants had poor knowledge about greywater and its use for cultivating local herbs, and 61% held a negative perception. Only 8% of participants reported having used greywater in their residence, with 70.8% of public servants specifically showing negative perceptions.

Tinashe P. Kanosvamhira · Urban Transformations · South Africa (Cape Town)

This qualitative study investigated 13 school-based community gardens in low-income townships on the Cape Flats of Cape Town, South Africa, using semi-structured interviews. It found that while these gardens can enhance food security, nutrition, and community development, most urban community gardens in South Africa face significant challenges related to land tenure rights, often requiring negotiation for school land use. The research highlights both the advantages and the challenges of utilizing school land for community gardens.

Leemisa Simon Matooane, Abraham R. Matamanda, Johannes Bhanye, Verna Nel · Urban Forum · Africa

This paper examines how urban planning affects food security in Lesotho, Zimbabwe, and South Africa. The analysis identifies common challenges in urban food systems, including urban agriculture integration, food distribution, spatial inequalities, and collaborative governance. Findings suggest that proactive, innovative urban planning tailored to socio-economic contexts can significantly enhance food security.

Tinashe P. Kanosvamhira · Journal of Agriculture Food Systems and Community Development · South Africa (Cape Town)

This study investigated the motivations for urban gardening among low-income residents in Cape Town's Cape Flats, South Africa, using survey data from 97 participants and interviews across 34 community gardens. While 29 out of 34 gardens prioritized income generation, a tension was found between institutional economic objectives and individual gardeners' motivations. Although 76.3% cited economic reasons, all respondents also valued social, health, and environmental benefits, perceiving gardening as a means to enhance well-being and promote sustainable practices despite structural barriers.

M. Elusaiwe, K. Atusa, Kanya Hilary · Asian Journal of Agricultural and Horticultural Research · Nigeria

This study investigated the efficiency of agricultural extension agents in promoting urban gardening among 250 respondents in 10 urban areas across two local government areas in Delta State, Nigeria. Findings revealed that most urban farmers, predominantly female civil servants, married women, or widows, were not visited by extension agents, nor were they encouraged to use growth media or form agricultural societies.

Mohammed Adem Ali, B. Lilly Grace Eunice · Discover Sustainability · Ethiopia

Urban agriculture in Ethiopia is a vital livelihood strategy, contributing to employment, income, and food security. Despite its significant contributions to GDP and urban employment, its potential is insufficiently utilized due to structural obstacles. These hurdles include restricted access to land and water, deficient regulatory frameworks, poor institutional support, social stigma, and environmental risks, and it is insufficiently acknowledged in urban development strategies.

Moçambique MANI TESE, Franscisco Monteiro Chimote, Paulo Xavier Tebulo · Revista fisio&terapia. · Mozambique

A study conducted in Quelimane, Mozambique, analyzed the procedures and challenges for ensuring advocacy for sustainable food systems. The research highlighted institutional fragmentation, the absence of urban agriculture regulation, and precarious logistics as critical obstacles. While community micro-strategies and urban gardens were identified as potential catalysts for transformation, the study concluded that strengthening local governance and multi-sectoral mobilization are fundamental.

Natalia Urrego Díaz, Astrid Ley, Kurt Ackermann, Leonie K. Fischer · · South Africa (Cape Town)

This study focuses on the Langa Agri-Food Hub in Cape Town, South Africa. The Hub is an innovation-seeking project aimed at transforming the local food system from the bottom up, supporting farmers, and strengthening the community. Through a literature review and qualitative analysis, including site observations, interviews, and workshops, the study uncovered the Hub's potential to serve as a vital platform for individual empowerment and the strengthening of the local food system.

Tesfay, Hailay, Machethe, Charles · AgEcon Search (University of Minnesota, USA) · Ethiopia (Tigray)

This paper examines the effect of Ethiopia's land certification program on the land tenure security of rural and peri-urban farming households in the Tigray region. Analyzing cross-sectional data from 500 respondents using logistic regression, the study showed that the program's effect is significantly influenced by the geographic location of farm households. The program produced better results for rural farmers than for peri-urban farmers, with certified households in rural areas being less likely to experience a change in their land tenure (less secure land tenure) compared to certified farmers in peri-urban areas.

Joyce Thamaga-Chitja, Nthabeleng Tamako, Temitope O. Ojo · Land · South Africa (Pietermaritzburg)

In Pietermaritzburg, KwaZulu-Natal Province, South Africa, the impact of land ownership on household food security among 156 urban farmers was analyzed. The majority of surveyed households experienced mild food insecurity, with a smaller proportion facing moderate insecurity. Land ownership was found to significantly reduce household food insecurity by 50%. Monthly income, age, and cooperative membership positively influenced land ownership likelihood, while gender and distance to market had negative impacts.

Ebimorboere endoni, Ibrahim Umar, Patrick Chukwuemeke Uwajeh, Timothy Onosahwo Iyendo, olawepo ibidolapo · Nile Journal of Engineering and Applied Science · Nigeria

This research investigates the role of community recreational gardens in fostering social cohesion among residents in urban housing estates in FCT Abuja, Nigeria, using a mixed-methods approach including surveys, interviews, and observational studies. Key findings indicate that community recreational gardens serve as inclusive environments, promoting cross-generational interactions, cultural exchange, and the formation of social networks in housing estates.

Etefa Tilahun Ashine · International Journal of Agricultural Economics · Ethiopia

This review examines the challenges and opportunities of urban agriculture in Ethiopia, where urbanization and living costs are rising. Key challenges include limited access to land, irrigation water, and financial institutions, as well as high prices for fertilizers and pesticides, and climate variability affecting crop yields. Opportunities include strong market demand for products, employment creation for youth and women, and additional income generation for producers. The study concludes that stronger policy support and investment are needed to enhance urban agriculture's contribution.

Jayne M. Rogerson · Modern Geográfia · South Africa (Johannesburg)

This article examines the organization and current state of rooftop agriculture in Johannesburg, South Africa, drawing on existing material. Johannesburg hosts the largest cluster of rooftop farms, primarily established for social considerations, with fewer projects for commercial reasons or business image enhancement. The study investigates the challenges confronting these rooftop farming projects.

Yusuf Kamaluddeen Ibrahim, Zabawi Abdul Ghani, Rasheed Osuolale Oladosu, O. D. Idris,, Tamwesigire Caleb · Journal of Innovative Research · Nigeria (Bauchi)

In Bauchi metropolis, Nigeria, urban farming practices and constraints were investigated among 285 urban farmers. Findings revealed that most farmers do not own land, instead borrowing or renting it. The major constraints to urban agriculture were reported as lack of tenure security, limited land area, and poor access to microcredit facilities.

S Aliyu, Okhimamhe A. A, I. M. Sule · International Journal of Research and Innovation in Applied Science · Nigeria (Lagos)

This study explored the role of urban farming in enhancing food security and sustainability in the Lagos Metropolis through focus group discussions and quantitative surveys with various stakeholders, including policymakers, urban farmers, and community members. Findings suggest urban farming's potential to reduce food transportation distances, enhance local food production, and mitigate climate change impacts. However, challenges such as land demands and gender disparities persist, necessitating integrated policy approaches and targeted educational programs.

Kurt Ackermann, Tamsin Faragher · CABI climate change series. · South Africa (Cape Town)

A three-year case study of the Langa Agrihub in Cape Town, South Africa, supports a network of over 250 urban farmers comprising more than 30 food gardens. The Agrihub provides inputs, infrastructure, knowledge exchange, and market connections, serving as a platform for civic participation, social cohesion, and local agency. This chapter states that the primary value of community food gardens lies in enabling communities to mitigate and adapt to intersecting stresses, including economic marginalisation, environmental degradation, and infrastructure shortcomings like water scarcity.

Girma Mulu Alemu, Sophie Schramm, Wilbard Kombe · Cogent Social Sciences · Ethiopia (Addis Ababa)

This qualitative study in peri-urban Addis Ababa, Ethiopia, explored the impacts of peri-urbanization on smallholder farmers' socio-economic conditions. The research found that peri-urbanization leads to the erosion of capital assets, with dwindling agricultural land causing tenure insecurity and disrupting livelihoods. This process exacerbates smallholder farmers' marginality by weakening social ties and mutual support systems.

Kejela Gnamura, Michael Akwasi Antwi, A Belete · Land · Ethiopia (Addis Ababa)

This mixed-methods study investigated the effects of urbanization-induced displacement on economic capital security by comparing 223 evicted and 223 non-evicted peri-urban farming households in Addis Ababa, Ethiopia. Logistic regression and thematic content analysis revealed that evicted households are approximately 72.7% less likely to achieve economic security compared to non-evicted households. The study concluded significant differences in household economic capital security between the two groups.

Ganda Adoum Malato, Nguinambaye Mberdoum Memti, Alhadj Markhous Nazal, TAMTIAL Ngariban, Touroumgaye Goalbaye · Journal of Experimental Agriculture International · Africa

A field survey of 121 randomly selected market gardeners in the city of Sarh, Chad, characterized market gardening practices there, covering grower profiles, farm characteristics, cultivation practices and vegetable products. Most gardeners were married men (70.25% married, 86.78% men) with an average age of 31, only 11.57% illiterate, farming plots averaging 333 m² (range 42-1,492 m²), 56.20% of which were inherited; 66.67% irrigated with river water, 83.5% used organic fertilizer and 82.64% used chemical fertilizer, 53.72% applied pesticides while 46.28% used biopesticides, and leafy vegetables made up 45% of cultivated products.

Human Sciences Research Council · Figshare · South Africa

A 2025 study from South Africa's Western Cape used propensity score matching on data from 220 households — those participating in Department of Agriculture-funded backyard garden projects plus a control group — to assess urban agriculture's contribution to household food security. Households engaged in urban agriculture benefited from greater dietary diversity and income from selling produce, but the study found no significant positive contribution of urban agriculture to food security.