The Federal Ministry of Food and Agriculture (BMEL) is funding innovations in urban horticulture, among other things. Twelve projects are currently being supported with a total of 6.3 million euros. One of these projects is GranuGruen, in which a water-storing granulate made from building residues is being developed for garden trees. The Institute for Food and Environmental Research (ILU) is one of the project partners. The Innovation Network Urban Horticulture (INUGA) now has the task of networking all the projects. For the start of this networking and transfer measure, all project participants met on the solar-powered ship “Orca ten broke” on 26 June. During a boat trip across the Spree River in Berlin, those responsible got to know each other and presented their respective projects. Prof. Dr. Daniel Pleissner, scientific director at the ILU, and Lina Krenz (M.Sc.), who is working on the GranuGruen project, were present on behalf of the ILU. The ILU project team was also accompanied by Maxie Grüter from the coordination office at the ILU. The project was presented by Daniel Pleissner and Steffen Schiecke from the Weimar Institute of Applied Construction Research one of three other project partners.