In the cities of industrialized countries, the sudden keen interest in urban agriculture has resulted, inter alia, in the growth of the number and diversity of urban collective gardens. While the multifunctionality of collective gardens is well known, individual gardeners’ motivations have still not been thoroughly investigated. The aim of this article is to explore the role, for the gardeners, of the food function as one of the functions of gardens, and to establish whether and how this function is a (...) motivating factor for them. We draw on a set of data from semi-structured interviews with 39 gardeners in 12 collective gardens in Paris and Montreal, as well as from a survey on 98 gardeners and from field observations of the gardeners’ practices. In the first part we present the nature and diversity of garden produce, and the gardeners’ assessment thereof. In the second part we describe the seven other functions mentioned by the gardeners, which enables us to situate the food function in relation to them. We conclude that the food function is the most significant function of the gardens, and discuss the implications for practitioners and policy makers. (shrink)