One call it vertical garden or bio walls or green walls the meaning is the same. With the growth in urban population the space is becoming a scarce commodity and is distancing human from the nature. It is also building pressure to produce food at a much faster rate by using inorganic methods resulting in high level of contamination in the food chain. In order to bridge the gap between human and the nature bio-walls has come in as a blessing as it uses vertical spaces to grow vegetables or herbs or green plants. Of course everything has its own limitation and so do bio-walls. One cannot grow everything on the bio walls due to certain technical details. And of course this is not something that one can pick up off the shelf and start growing things. You would need experts who can give you basic guidance about how the system works and then you can grow things on your own.
Bio-walls can exist inside with proper lighting, watering and the right growing media or can be put outside in almost any climate. They can be planted randomly or have intricate patterns. Green walls can be self-sustaining with a recirculating irrigation system, hard piped with drip irrigation and a drain, or watered by hand. Green walls or bio-walls have tremendous benefits and few of them are listed below: