The Zenne garden is an initiative that was taken by a group of people who searched for a way to experiment with perma-culture gardening in the city. Perma-culture practices approach a garden more as an eco-system and give importance to the associative role that each organism plays inside a biotope, and the singular niche it has in the environment. These practices employ the various cycles of life or “time stacking” in an eco-system to enrich the soil and bring forth both annual and perennial vegetable crops. Forest type garden searches for including as much diversity in the garden as possible, of plants, trees, insects and animals to create an abundance of life. This implies concretely no turning of the soil, no artificial fertilizers or pesticides, no watering, etc…. The Zenne garden experiments with such practices since 2007 on a precarious urban interstice piece of land along the banks of the Zenne river in Anderlecht, Brussels. The group inherited the land from abandoned rental allotments or “volkstuinen” and transformed these gradually in one transversal collective garden. As big parts of the garden soil suffered from road works, the soil undergoes various form of remediation. Every member of the group takes some responsibility over one or several experiments and at the same time everyone keeps in mind the garden as a whole. The collective day of working is Sunday afternoon. Newcomers become “initiated” in the principles of perma-culture by gardening in group with other members.