When my son Nathan was here, we planted potatoes in used tires with the sidewalls cut out. Three tires were planted with Red Norland and three tires were planted with Yukon Gold.
We have an issue with standing water from time to time. Piles of composted tree trimmings were leveled out and covered with weed cloth. The tires were placed and the bottoms were filled with sand. The hardened off potato cuttings were placed in the bottom of each tire on top of the sand. Compost mixed with soil was placed on top of the cuttings to cover the cuttings. Subsequently, composted grass cutting were placed on top.
I will keep you posted on the continuing results of this Spring project.