How Living Walls, Vertical Gardens and Sky Farms Work Have you
ever wondered how plants grow in the weirdest of places like
rocks, tree trunks, and the outside of houses? This phenomenon,
based on the fact that plants actually do not need soil to grow,
has been replicated by scientists in recent years. Called
vertical gardens, green walls or sky farms, they try to bring
green oases and even farming indoors. Portrayed by Environmental
Graffiti in May 2008, the idea has since grown roots (pun
intended). Vertical gardens are today the most common green
oases that we can see all around us, because they exploit the
fact that plants actually do not need soil to grow, as long as
they have water and the minerals found in soil. Plus, light and
carbon dioxide to conduct photosynthesis, of which, in our urban
environment, there should be plenty around. The picture that
looks like an architectural drawing is taken at Singapore's
Changi Airport, the "green" Terminal 3 with a giant green wall.
That should take care of that