I have a system that works wonderfully for me. I use sections of fencing and make a circle. I place seed potatoes in the bottom, and keep adding dirt when the stalks reach 6 inches, just to the leaves. I use dirt, straw and old hay from the stalls. Not from the coop as it is too hot.
At harvest time, I unhook the fence and all the dirt spills out full of potatoes. This has worked better for me than any other method. Also keeps potatoes from getting too wet.
I’m making a note of your method. That sounds really neat.
Fascinating, great way to save space and bring organization to a garden. Thanks for the tip.