The research aimed to explore the obstacles and levers for the development of market garden production by proposing a sociological inquiry of farmers’ strategies and by focusing on land governance. We chose to devote research to the dynamics of agricultural diversification, as reterritorialization of these productions at a regional scale is a social issue for urban metropolises. The historical decline of market garden production at the urban fringe has resulted in a collapse of the land allocated to market gardening. The challenge of diversifying agricultural production on a territorial scale is therefore particularly salient in urban metropolises like the Paris region, in a context of growing demand for local products.