@27e67f00 Hi Jake, thank you, that sounds good! I know about Jennifer Schulz from the Potsdam University who leads a research project and builds up a forest garden in the south of Berlin. I will soon go there and have a look. ArteTV showed a little documentary about the whole project in June, very interesting!
https://www.urbane-waldgaerten.de/team/dr-jennifer-schulz 

 @214f1eda
Thank you, sounds really interesting. Such a lot of good work going on, I'll have a look