Green Roof Growers, a splendid blog

My Chicago correspondent Bruce FIELDS has set up  a very interesting and beautiful blog on “rooftop gardening”.  Together with his friends, he has built up a lot of experience in container gardening on the Chicago roofs.

Interested ?  Do not hesitate to visit :

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Willem Van Cotthem

Honorary Professor of Botany, University of Ghent (Belgium). Scientific Consultant for Desertification and Sustainable Development.