Harvesting Sweet Potato
Harvest sweet potato vines 90 to 110 days after planting, or after the vines have been lightly frosted. With a garden fork, carefully dig the vines and separate the roots. Cure harvested sweet potatoes in high humidity at 80 to 90 degrees F for one or two weeks. Move the roots to a dry location at 55 to 60 degrees F for storage. Flavor will improve after several weeks of storage as starches in the roots convert to sugar.
