I've planted an herb garden very much like this; only I used a cracked kiddie pool instead. It was fabulous last year! There was no need to dig or till. I wrapped some black garden fabric around the soil bags (I used silver duck tape to secure it to the bags) to discourage the squirrels and weeds. Those pesky dandelion seeds can lodge anywhere they try. Where there was room from time to time; I planted extra lettuces in between the emptied spaces.
I've planted an herb garden very much like this; only I used a cracked kiddie pool instead. It was fabulous last year! There was no need to dig or till. I wrapped some black garden fabric around the soil bags (I used silver duck tape to secure it to the bags) to discourage the squirrels and weeds. Those pesky dandelion seeds can lodge anywhere they try. Where there was room from time to time; I planted extra lettuces in between the emptied spaces.