One of the biggest hurdles for city dwellers craving green spaces is the limitation of "natural light."  Whether it's residents of north-facing condos where the sun never quite reaches, or office workers relying on fluorescent lights all day long, many end up disheartened, believing that "nothing will survive"  in their space. But in reality, nature is far more miraculous than we think. If we look back at the ecosystem of a tropical rainforest, we find a group of flora known