This article narrates the development of the antinuclear movement from the bottom up, showing how local protests initiated changes in Germans' ideas about democracy and public participation, precipitating the Green Party's emergence. The narrative begins with the pre-history of the 1975 occupation of the Wyhl reactor site in Southern Baden. It shows that vintners' concerns about the future of their livelihoods underpinned protests at Wyhl, but argues that the anti-reactor coalition grew in breadth after government officials' perceived misconduct caused local people to connect their agricultural concerns with democracy matters. It then explains how local protests like the Wyhl occupation influenced the formation of the German Green Party in the late 1970s, showing how the sorts of convergences that occurred amidst “single issue” protests like the anti-Wyhl struggle enabled a wide variety of activists to come together in the new party. Thus, the article argues that particular, local concerns initiated a rethinking of participation in electoral politics. Far from fracturing society, these local concerns promoted diverse new coalitions and shaped an inclusive approach to electoral politics.