To plant potatoes, you need potatoes with eyes. These are potatoes from my previous harvest.
If you have a large potato with several eyes, you cut the potato into pieces, one eye per piece. I had small potatoes, so I kept them whole.
I do Square Foot Gardening, so I put one potato (or potato piece) per square. Dig down and plant them deep. You want to have some deep soil. The garden box above is 7 inches tall.
I’ve heard some people say that you can keep piling dirt, straw, etc. on top as the plant grows higher, in order to get more potatoes.
I usually plant in the spring and in the fall. I harvest when the plants stop growing and look like they’re dying (Sorry, that’s probably not the answer you’re looking for!)