Picture of building vertical green wall

Quick answer：

Vertical green walls are a form of green infrastructure that involves growing plants on the exterior walls of buildings. They offer numerous environmental, aesthetic, and health benefits. These walls can improve air quality, reduce energy consumption, provide insulation, and offer a visually appealing addition to urban landscapes. They are typically designed with specialized systems to support plant growth, such as irrigation and structural support. Vertical green walls are commonly used in urban settings to enhance green spaces, even in areas with limited land availability.