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Can You Grow Sweet Potato in Maryland?

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

Maryland last frost

early March

Maryland first frost

late November

Days to harvest

90–120 days

When to plant Sweet Potatoes in Maryland

Direct sow

Mar 7

Harvest

Jun 5 – Jul 5

Dates are approximate, based on Maryland'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 Maryland

Maryland has a humid subtropical climate moderated by the Chesapeake Bay. Four distinct seasons with mild winters in most of the state. Long productive growing season.