The presence of green areas in the urban context, attention to the quantity of spaces set aside and the quality of their maintenance, represent a meaningful indicator of livability and ecosustainability of cities. These and other themes will be discussed at the conference entitled Refertilizing the city: forms and functions of urban greenery. Outstanding speakers include the well-known French landscape expert Gilles Clément. Describing different design experiences, the speakers will develop reflections on the possibility of rethinking the city as a more fertile place, not just in strictly biological terms of fertility of the soil, but also in a symbolic way, extended to opportunities for the cultural and productive system of a city to be ‘nourished’ by the environment itself, in a virtuous cycle that covers the entire quality of life of those who live and work in the city, or simply visit it for tourism.