Only an optimist would try to grow sweet potato in the kitchen garden in Denmark, but in the greenhouse, you can easily grow this cute sweet tuber.
Take a look at the picture of a sweet potato sprouting. Isn´t that nice?
Some places sweet potato is called yam, although it has nothing to do with true yam, Dioscorea.
You can see the rapidly growing vines cover the ground in no time, and after a few months you can dig up the large sweet tubers. All they need is lots of heat and water and a little fertilizer.