Living walls, Green walls or vertical gardens is a concept that dates back to 600 BC with the Hanging Gardens of Babylon. Nowadays with ecological awareness and the shinking of green areas, it is getting more and more popular, especially in France.
There are 2 main categories of green walls: either green façades which are made up of climbing plants - growing directly on the wall or most recently specially designed to support structures, or living walls where the modular patterns are often made of steel containers.
Green walls are most often found un urban environments where they help preventing the loss of temperature of the building. The main goal remains isolation but can also be considered for water reuse.
The plants are likely to purify polluted water.
French Scientist, Patric Blanc has developed a successful company around the idea of transforming interior walls into green space. Not only does it improve the air quality through absorbing carbon dioxide and impurities in the air and gives out oxygen, it also helps ventilation, balance humidity and temperature.
And it really looks exotic and nice.
Vertical gardening can also be considered for your balcony walls. Some people use to plant lettuce and strawberries instead of moos, ivy and fern.