Live green walls made of living plants are beautiful, but they are very high maintenance. Actual living plants need constant care: pruning or trimming, watering, fertilisation, and regular repotting or soil exchange are some of the main factors of live green wall maintenance.
Additionally, some plants are very prone to plant diseases and various kinds of parasites, such as flies, lice or mosquitos. All this means that aside from already comparatively high acquisition costs – for larger green walls, it’s advisable to install some sort of watering system, for example – live moss or plant walls bring a high level of maintenance costs and effort as well.
Another downside can be allergies, so if you’re planning to acquire a living plant wall, make sure that none of your coworkers are allergic to any of the components!
All in all, if you don’t have a green thumb and struggle to keep a cactus alive in your home, no offense, but it might be best to keep your hands off living plant walls.