Gardens belong to Berlin. They are greening and refreshing the city, produce healthy food, protect and create fertile soils, are spaces for socializing, sharing, learning and community building. The Berlin allotment gardens startet with this more than a hundred years ago and are as popular as ever. Community gardens are rather young, but their number is crowing. Both types of urban gardens get more and more under pressure because of planned constructions. The Forum Stadtgärtnern is an initiative where community gardening and allotment garden activists gather their creativity, knowledge and ressources in order to protect and support the diversity of urban gardens in Berlin. The group is organizing debates, addressing papers to politicians and participating in demonstrations and actions in favour to protect urban green, a sustainable urban development and concerning climate change.