The author illustrates the results of a qualitative study on the different organizational modes of urban gardens in Barcelona, Spain: community gardens, which reflect the need to "give space, within the city, to soil cultivation" (Cavazzani, 2009), and urban gardens, which aim to create a political, social (Calori, 2009), and cultural activity (Ingersoll, 2009), thus becoming a place for both political claims and social enhancement.
Keywords: Urban agriculture, networks, social cohesion, public goods