This A-frame hydroponic system is a great example of how to create a vertical garden that maximizes the number of plants that can be grown in a small space without the need for soil.
This is something that could be done on a small scale, as shown here, making it ideal for those who want to grow their own food but lack the space to do it. Or it could easily be scaled up to a much larger system.
This setup uses inexpensive materials, including 2′ x 4′ boards for the frame, PVC pipe and tubes for water circulation, valves to control the water flow and drainage, and a plastic tote for the reservoir.
Each of the 12 PVC tubes in this system holds 14 plants, for a total of 168 plants, an incredible number of plants for the size of the growing space – 6′ wide x 6′ tall x 10′ long. It is also portable.
The garden shown is being used to grow basil, but just about any plant that can be grown hydroponically could be grown using this concept.
See the video below from Greenerways for more information.