Hyundai’s Kitchen Nano Garden uses hydroponic technique to grow food. Nano Garden lets you grow vegetables right in your kitchen. Eco Factor: Kitchen vegetable garden grows food without using harmful fertilizers and pesticides.
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.