Cities, which now host the majority of the global population, are vulnerable to environmental and socio-economic disturbances, which are likely to increase in number and severity in the near future. Urban agriculture (UA) could help increase the resilience of cities to a range of pressures and acute shocks by improving food security and public health, building social capital, and promoting circular economies. However, comprehensive assessments of its potential are still lacking. Here, we use a systematic review of the literature on UA in the global North to identify factors that determine its success in providing resilience benefits, explore challenges that can limit this, and develop a conceptual model to highlight the ways in which it could be enhanced through research, policy, and practice. We define the success of UA in increasing city resilience as determined by five factors, which in turn depend on the amount of institutional and public support for UA, the presence of a sufficient knowledge base, communication and collaboration among different actors, and resourcefulness in finding alternative ways to use space and other resources efficiently. We close with a discussion of specific directions for research and practice based on the conceptual model developed here.

Societal Impact StatementHousehold fruit and vegetable (F&V) production in allotments and gardens can provide sustainable access to nutritious food. The present study demonstrates that UK household F&V production supplies more than half of the vegetables and potatoes and 20% of the fruit that growers consume annually. Importantly, study participants ate 6.3 portions of their recommended 5‐a‐day F&V (70% higher than the UK national average), and their wasted F&V was 95% lower than the national average. This provides key evidence to demonstrate the role household F&V production could play in providing access to fresh F&V, which is key to a healthy, food‐secure population.Summary Improving access to and consumption of fruits and vegetables (F&V) is crucial to a healthy and food‐secure population, as current low intakes are linked to high rates of non‐communicable diseases, premature death and increased healthcare costs. Household F&V production could improve diet quality and food system resilience, however, quantitative evidence for its potential is limited. We studied year‐long F&V production, purchases, donations and waste in UK food‐grower households (N = 85) using a food diary approach. Median year‐round household self‐sufficiency was 51% in vegetables, 20% in fruits and 50% in potatoes. The median daily per capita F&V intake was 507 g, which is the equivalent of 6.3 portions of F&V and 70% higher than the UK national average. On average, own production accounted for half of each household's annual 5‐a‐day F&V requirements. F&V waste was negligible, equivalent to 0.12 portions per day and 95% lower than the UK average F&V waste. We demonstrate that promoting household F&V production could improve food system resilience, diet‐related public health and sustainability.