Green walls (also known as plant walls, living walls or vertical gardens) have become a rising new trend of built environments in recent years. Incorporating living nature into urban environments not only looks much more inviting, but also has a number of other benefits and purposes.

Green walls are vertical structures that have different types of plants or other greenery attached to them. The greenery is often planted in a growth medium consisting of soil, stone, or water. Because the walls have living plants in them, they usually feature built-in irrigation systems.