When to plant sweet potato

Tender · frost kills it

Sweet Potatois keyed to your local frost dates. The offsets below hold anywhere — but the calendar dates they land on don’t. Enter your ZIP for dates tuned to your city’s nearest NOAA station.

Sweet Potato planting timeline

Transplant out

3–5 wks after

Harvest

90–120 days later

-1 wksLAST SPRING FROST+21 wks

Tender: wait until the danger of frost has passed before planting out.

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Sweet Potato planting FAQ

Can I direct sow sweet potato?

Sweet Potato is usually started indoors and transplanted rather than direct sown, for a reliable stand.

How long does sweet potato take to grow?

Sweet Potato takes about 90–120 days from transplanting to harvest, depending on the variety and conditions.

Is sweet potato frost-hardy?

Tender: wait until the danger of frost has passed before planting out.

Planting reminders

Never miss a window in your area

An email when it’s time to start seeds, transplant, and sow — timed to your frost dates. Double opt-in, one-click unsubscribe, no spam.

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Planting windows are offsets from your local 1991–2020 NOAA frost normals. How we compute this.