It is the goal of the paper to show continuity and discontinuity of citizenparticipation in open space planning in the course of the 20th century in Germany. Sometimes citizen participation seems to be regarded as a recentphenomenon in open space planning. However, in our paper we will considerthe ideas for citizen participation in open space planning from the begin-ning of the 20th century until today. We take as an example the developmentof participatory efforts in a major city in Germany. The issues will refer tocommunal open space policy, allotment gardening, cemetery administrationand trees in city streets.