I had two sweet potatoes, but didn't get a chance to eat them. They started sprouting on their own. So I stuck them in 15 gallon pots with potting soil. This happened in July or August of 2016. I harvested them in November of 2016 before the frost. I read that you want to harvest before the frost. So my first try and my two sweet potatoes made a harvest of 8 potatoes. I'm sure I would have gotten more if I would have started earlier. I still haven't gotten around to eating those eight potatoes. If they start to sprout I'll go ahead and start growing the next generation of sweet potatoes.