I've done the cuttings thing and it works fine, but the plants need to be indoors where it's warm. They are very tender.

In the early spring, I take cuttings again because the winter growth tends to be stringy (leggy). Those second cuttings are the ones that make it to the garden.

OK- stupid question here, but have you ever tried rooting a "real" sweet potato ?? I cut one into chunks and plant in potting mix, keep it moist but not soaking- pretty soon they sprout and for the price of just one sweet potato I get 6 or 8 plants or more. I have them in pots of soil and growing in my pond- in the waterfall and tucked into pots of other pond plants

Hi Don. Don't know what else you've got in the pot or how big the pot is, but if it has room, it increases. What I do is take the plant in, keep it alive under lights in my very cool basement, and in the spring, dig it up and divide the tubers and re-plant. They don't look good at all in the winter, but make wonderful plants in no time in the spring.