This paper examines the recent history of urban planning policy in and around Portland, Oregon with respect to efforts to enhance local agriculture. Despite recent and ongoing efforts to promote distribution and direct sale of local food products in the city, I argue that the dominant effect of the Urban Growth Boundary (UGB) in place since the 1970s has been to push agricultural production further from the most populous areas of the city. Whereas the UGB at present cannot include areas zoned specifically for agricultural use, I argue that it must reformed to allow for "agricultural reserves" within the boundary. While there are challenges to having residential, industrial, and residential areas in close proximity, it is essential to meet these challenges if urban agriculture is to be anything more that transitory experiments destined for future residential construction.