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Can You Grow Sweet Potato in Oklahoma?

US · USDA Zone 7a · zones 6a, 6b, 7a, 7b

Grows well here

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

Plant zones

5a–11b

Oklahoma last frost

early March

Oklahoma first frost

late November

Days to harvest

90–120 days

When to plant Sweet Potatoes in Oklahoma

Direct sow

Mar 7

Harvest

Jun 5 – Jul 5

Dates are approximate, based on Oklahoma'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 Oklahoma

Oklahoma ranges from Zone 6a in the Panhandle to Zone 7b in the southeast. Hot summers and mild winters. Long growing season for warm-season crops.