Hanging garden

A hanging garden is a form of sustainable landscape architecture that can take several different forms, such as roof gardens, but will always be defined as a garden planted at a suspended or elevated position off the ground. These gardens are created with walls, fences, planted on terraces, growing from cliffs, or anything where the garden is not touching the earth. Space optimization is the main intention with the gardens, however, aesthetics and providing cleaner air are also popular reasons for setting one up. Hanging gardens are popular in urban environments where there is limited space, such as in New York or California.