A green wall is a wall partially or completely covered with greenery that includes a growing medium, such as soil. Most green walls also feature an integrated water delivery system. Green walls are also known as living walls or vertical gardens. Green walls are used as one of means which for many years have been used to enrich the appearance of building elevations. They make it possible to introduce greenery into urban areas, which are often limited by the size of the building plot. They add an exceptional aesthetic aspect to the so-called ‘blind’ walls found in city centers. Green walls not only bring with them an element of beauty and integration with nature, but by being used to a wider extent, could also have a positive impact on the city’s micro climate. Various technologies enable the creation of green walls on the outside of buildings as well as in semi-open spaces and interiors. In this publication, five different methods of setting up living walls are described, from the relatively simple technique of planting climbers that easily cover bare walls to modular panel systems or green wall systems with flower pots to ‘living wall’ solutions and finally, to Patrick Blanc’s highly sophisticated vertical garden technology.