I built a potato tower last year. I did everything right. I even recorded video footage of each perfectly planned step and was going to post it on my YouTube channel. It was going to be the greatest thing since sliced bread! I grew it in stacked boxes 4 feet high. Came time to harvest and found the bulk of my potatoes in the base where I planted them, and the rest of the layers up showed FAILURE! Anyone actually have success with this??? I have yet to find someone that actually had a good yield from this technique. The theory of it sounds good, but the actual outcome just doesn't show up.