Harvesting Sweet Potatoes
Sweet potatoes are harvested for their underground storage roots. Proper timing and curing improve sweetness and storage life.
Care instructions
Harvest after full maturity.
Sweet potatoes are usually ready about 90–120 days after planting, depending on the variety. Harvest when vines begin to yellow or before the first frost.
Harvest before frost.
Cold temperatures can damage roots in the soil. Harvest before soil temperatures drop too low.
Choose dry conditions.
Dig sweet potatoes on a dry day if possible to reduce damage and improve storage quality.
Loosen soil carefully.
Use a garden fork to gently loosen soil around the plant. Sweet potatoes grow just below the surface and can bruise easily.
Lift roots gently.
Pull vines aside and carefully lift roots from the soil. Avoid cutting or scratching the skin.
Cure after harvesting.
Allow roots to cure in a warm, humid place for about 7–14 days. Curing improves sweetness and toughens the skin for storage.
Store properly after curing.
Store in a cool, dry, well-ventilated place. Do not refrigerate, as cold temperatures affect texture and flavor.
Frequently asked questions
When are sweet potatoes ready for harvest?
Sweet potatoes are typically ready for harvest 90 to 120 days after planting, or when their vines begin to yellow. It's also important to harvest them before the first frost arrives.
How do I harvest sweet potatoes without damaging them?
Gently loosen the soil around the plant with a garden fork, being careful as sweet potatoes grow just below the surface and bruise easily. Pull the vines aside and carefully lift the roots from the soil, avoiding cuts or scratches.
Why should I cure sweet potatoes after harvesting?
Curing sweet potatoes in a warm, humid place for 7 to 14 days helps to improve their sweetness. It also toughens their skin, which is important for better storage.
How should I store sweet potatoes after curing?
After curing, sweet potatoes should be stored in a cool, dry, and well-ventilated location. Avoid refrigerating them, as cold temperatures can negatively affect their texture and flavor.
Can I harvest sweet potatoes after a frost?
No, you should harvest sweet potatoes before the first frost, as cold temperatures can damage the roots while they are still in the soil. It's best to harvest them before soil temperatures drop too low.
