https://www.planning.org/knowledgebase/urbanagriculture/

Public interest in locally grown food, coupled with an awareness of the positive environmental, social, and economic impacts of agricultural uses on urban areas, has inspired many city residents to pursue small-scale agricultural activities on both private and public lands. As the community gardening and urban agriculture movements gain popularity and the benefits become more apparent, many local governments have adopted policies and regulations that sanction or support community gardens and urban farming.