I am currently not blessed with land so I had to think vertically! The last 2 years have grown potatoes in cinder blocks. If you are interested in seeing more I did a post on it 5 months ago. Here is the link....
https://steemit.com/gardening/@simms50/cinder-block-potatoes
Thanks for sending the link. I have heard of people being really successful using an approach similar to yours. Like you said maybe a little more water this year! This year maybe the year for a big harvest.
I pray that the Father does make that happen! Now after doing it a couple of years I have a sense of what works and does not work with cinder block potatoes! I'm sure I will make a post of these years crop later this year!