|  |  | 15 Living Walls, Vertical Gardens & Sky Farms [w/ pics] www.environmentalgraffiti.com — A living wall, also referred to as a green wall, vertical garden, or sky farm, is usually part of a building and consists of some sort of vegetation. These types of gardens are sometimes referred to as urban gardening, because they are well-suited for an urban environment where space on the ground is very limited but vertical space is plentiful. More... (Travel & Places) Comments Email Added 2008-05-22 08:30:03 TalSiach