0 a wall covered with plants that are growing in containers or on special material attached to the wall, often used when there is not much space to grow things on the ground:
A living wall is a vertical row of plants that filters air and water.
The campus now boasts a greenhouse, solar panels that power 20 classrooms, energy-efficient light bulbs and a living wall.
He suggests living walls of ocotillos, bougainvillea and oleanders.
