Vertical Vegetable and Herbs Garden - For the millions of people who don’t have access to the type of land it takes to grow a bountiful vegetable crop, this gives you a chance to sprout organic produce in a small space.
Good idea if you have rock solid ground that is hard to dig up. If you don't cover the holes you can use them for herbs & annuals. also lined with weed barrier cloth & used rebar in several places for stability. It makes maintenence super easy.