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.
How To Make Self-watering Seed Starter Pots. We are excited to share with you this recycling project. It is truly green and fun. You do not only recycle those plastic water bottles, but also make self-watering seed starter pots for you to start your herb