Fancy having a garden on your roof? Why not having a small plantation on your house's wall? Patrick Blanc - Paris-based botanist and designer - is the author of impressive vertical gardens - natural installations made of different species of moss, clover and flowers that cover walls of French buildings. They are kept fresh and green by a specially constructed system of water circulation. It is an innovative and quirky solution that brings nature back to cities. Patrick was commissioned to design his vertical garden in London. British TV made a short program about his work which tells a bit more about the man and portrays him as a very charismatic and likable person.