I found a sweet potato in my basement this fall that had sprouts. Jokingly my mom said to put it in a jar of water. lol So I did. I don't think my sweet potato knows what time of year it is. Although it is still in the high 80s/low 90s here. I guess I will try making a cold frame with some straw bales and plant it to see what happens.
I thought about that Alee, I'm going to have a growing light in my basement this winter. But since it is a vine plant I didn't know how much room it would need. This is going to be all experimental. lol
My mother in law always "plants" a sweet potato in a jar in her window. She hung a tension curtain rod for the vine to wrap around. When it gets too big she cuts it down and starts over.