Ways to green the walls of a building are many: trellising a few small climbing plants, covering a whole facade, installing planters or flowerbeds in front of the wall... Small or large, high or low surfaces can be greened (all addressed in the first four sections to follow). In contrast to traditional methods, we also address (in sections five and six) more modern options, like the modular green 'vertical garden' often popular in Asia. After that, you can look to our section on Ideas where we'll introduce you to ways of greening various parts of a building.