The thesis critically deals with Urban Greening, a phenomenon that transformed contemporary urban areas in the post-industrial landscape. After a deep exploration of literature and field fieldwork, this research defines such an issue as “an accumulative mechanism of translation of the perception and relationship between society and urban nature”. By inquiring about greening mechanisms in the cases of Rotterdam and Torino, the work proposes a design experiment to challenge the current ways of production of green bodies, by fostering new relationships in the urban sphere. The first part of the thesis proposes to define urban greening through literature, contemporary definitions, and categorizations.