The document describes a design-oriented process and platform for inspiring and accelerating urban agriculture coalitions. It discusses the FoodPLUS Detroit Coalition, which facilitates a more sustainable food system through multi-stakeholder engagement and a new approach to participative knowledge development. It also describes Green Ideas events that use collaboration, ideation, and technology components like data harvesting, curation, and social storytelling to catalyze green innovation. The process will continue to be improved and tested with other metropolitan regions.