To place it safe, you could just ensure your beds have a depth of 12 to 18 inches. Whatever height you choose for your frame, you’ll need to loosen the soil below the ground accordingly. For example, if you have a bed that’s 6 inches high, we recommend loosening the soil below t...
almost 10 years ago we made one giant raised bed which worked just fine but wasn’t super practical when it came to actually working on the garden. Because of the large size, you had to physically get into the garden to do anything but water it. ...