Thomas_U in our Freiburg gardening group made me aware of these beautiful examples of vertical gardens in Berlin-Kreuzberg - inspired by Patrick Blanc who also created a big wall of tropical plants in one Dussmann department store in Berlin.

Learn more here - the article is in German, but you may scroll down for the picture gallery: http://www.tagesspiegel.de/berlin/bezirke/kreuzberg-blog/vertical-green-...

Another picture gallery with details of Blanc's wall in Dussmann can be found here: http://www.tagesspiegel.de/mediacenter/fotostrecken/kultur/die-tropen-an...

Definitely worth scheduling for the next city trip to Berlin!