“Here’s how I made my vertical vegetable garden, starting from used big water bottles as planters.
An automatic watering system keeps the right moisture, collecting water in excess, using power from pv panels and a little wind turbine.
The green wall is composed by 72 water bottles cut and placed upside-down on a wooden shelf.
Two independent water reservoir are present: the main is placed on the side of the building and composed by eight 200 liters barrels linked together, for collecting rain water.
The second one is composed by three plastic “new jersey” street barriers, that can contain 80 – 100 liters each, placed under the shelf…”