Far more than just an unusual decoration attached to a wall, these gardens are an exciting means of bringing life and greenery to a bleak courtyard, a gray city street or a cold modern building. Vertical Gardens is the first publication to present a collection of the most important examples of this emerging trend. Not content with projecting gardens and cultivating plants on a horizontal terrain, those who create vertical gardens apply the principles of hydroponics (a technique of growing plants in water containing dissolved nutrients) and use ingenious framing systems that allow luxuriant compositions of plant life to colonize the exteriors of buildings.