GOOD has a great photo spread of an urban garden;
Over the last few years, urbangardening has grown increasingly more prominent—as an emblem of demand for healthier, more natural food; as a centerpiece of community-minded interaction; and as a means of cultivating beautifully functional public spaces. All these factors are in evidence at the Somerset Community Garden in South Providence, Rhode Island, where families of African, Cambodian, Dominican, European, Hmong, Laotian, Liberian, and other origins share a public space where they maintain all sorts of different crops. Photographed across many seasons over a two-year span by Lucas Foglia, "The Garden" covers an entire city block and continues to attract a vast array of individuals.
Go here if you're interested in participating in a community garden in the west valley of Spokane.