If you prefer to save the tubers for replanting next season.
Sweet potato vine care in winter.
Take cuttings several weeks before your average first frost date and place in water.
Then cut back the vine to just a couple of inches and spread a thick layer of mulch around the container to act as a blanket to protect the roots.
As a tropical plant it prefers warmer temperatures.
Plants can also be brought indoors and treated as houseplants.
Planted against a sunny south facing wall in a wind sheltered garden the tender vines should survive a frost free winter.
Sweet potato vines can be overwintered indoors from tubers or cuttings.
Store dormant tubers in a cool dry place and replant in spring.
Care for sweet potato vines over winter place the container in indirect sunlight and watch for roots to develop within a few days.
Heeling in sweet potato vines over winter if your region doesn t often receive sustained freezes you can simply bury the container in which the vines grow in mounded soil.
The one season in which it s generally not advisable to plant sweet potato vines is the winter.
However depending on your growing zone it can be planted at other times of year.
Most of the time the sweet potato plant is planted in the spring.