I got these "Earthboxes" mostly to grow lettuce on the deck. A couple years ago started planting sweet potatoes in them after the lettuce gave up in the summer. They do fairly well and are very attractive on the deck I think. The potatoes get kind of misshapen because they don't have much room to spread. We had a couple near frosts last week and the vines have about given up so I dug them out this morning.