Nothing like an idea that innovative, novel, eco-friendly and does not compromise the looks. Given the above I would call this just perfect. Metaphorically speaking I would call it green wall but what is so eco-friendly about green colored walls? Do they use eco-friendly emulsion? Not quite. As you see, the picture as you see speaks for itself. The walls of the building are covered by different shades of green flora. This cuts your painting cost; I assume it would require periodic cropping though but that would still be relatively cheaper. Besides it makes for some insulation in winter and summers may be cooler. Plus some fresh oxygen atleast for the immediate surrounding and looks cool and conspicuous.

Via : Ecotality133593