Nice way to grow a lot in a small space. I like the idea if I could find used barrels. I think it would be great for strawberries.
One barrel would probably be a great way to grow salad greens all in one.
Easiest earth explains how its done.
3-D Vertical Barrel Gardening – A Striking Use For Used Barrels
Nancy Janes P1360 12-inch Stacking Planters with Patented Flow through Watering System and Hanging Chain, Tuscany, Set of 3