Home › Sweet Potato › Grow in Delaware

Can You Grow Sweet Potato in Delaware?

US · USDA Zone 7a · zones 6b, 7a

Grows well here

Sweet potatoes grow well here — they love the warm season your zone provides.

Plant zones

5a–11b

Delaware last frost

early March

Delaware first frost

late November

Days to harvest

90–120 days

When to plant Sweet Potatoes in Delaware

Direct sow

Mar 7

Harvest

Jun 5 – Jul 5

Dates are approximate, based on Delaware's average frost dates. Your exact yard may vary by microclimate.

About Sweet Potato

Sweet potatoes need a long warm season and thrive in heat — they are a subtropical crop at heart.

Plant slips (rooted cuttings) after soil warms to 18°C. They sprawl — give them space or train vertically. Cure harvested tubers at 30°C for a week to develop sweetness and improve storage.

Full sweet potato growing guide →

Gardening in Delaware

Delaware has a humid subtropical climate moderated by the Atlantic. Mild winters and warm summers support a long growing season for mid-Atlantic vegetables.

See what grows well in Delaware →

Frequently asked questions

Can you grow Sweet Potato in Delaware?

Sweet potatoes grow well here — they love the warm season your zone provides.

What zone is Delaware?

Delaware spans USDA Zone 7a (6b, 7a).

When do you plant Sweet Potatoes in Delaware?

Plant Sweet Potatoes Mar 7, harvest Jun 5 – Jul 5.