Folko KullmannDr Folko Kullmann has been experimenting with gardening techniques in his garden and balcony since studying horticultural science and plant production at TU Munich. He has worked at numerous prestigious nurseries in Europe, including Kew in Lodon. Folko edits GartenPraxis, the leading magazine for botanists, gardeners and horticulturists and is both the author of several books and a horticultural journalist. Read More Read Less