Community-led urban agriculture (UA) can potentially address health inequities, increase access to green space, and increase food security for socioeconomically disadvantaged neighborhoods. Guided by the social determinants of health and community cultural wealth model, I analyzed field observations and interviews with leaders of Long Beach community gardens, school gardens, and urban farms. This dissertation presents a socio-ecological model of UA and recommendations for community, research, and policy. One major finding was the importance of collaboration between community members, local organizations, and city officials to build UA. Beyond growing food, UA participants formed bonds, exchanged knowledge, coped with stress, and engaged in outdoor physical activity. Interviewees stressed that funding and long-term land rights are necessary for UA sites and communities to thrive.