When to Plant Sweet potatoes in South Dakota: May 17–May 31

When to plant sweet potatoes in South Dakota

Plant out in Sioux Falls

May 17–May 31

Across South Dakota the window opens between May 17 and May 29. Find your city below; the dates follow each town's own average last frost.

Plant out 3–5 weeks after the last frost. Set out slips when the soil is warm, around 65°F. They need a long, hot season.

Sweet potatoes planting dates by city

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost

JanFebMarAprMayJunJulAugSepOctNovDec

Sioux FallsMay 17–May 31

Rapid CityMay 24–Jun 7

AberdeenMay 29–Jun 12

BrookingsMay 27–Jun 10

WatertownMay 28–Jun 11

Questions

When should I plant sweet potatoes in South Dakota?

In Sioux Falls, plant out from May 17 to May 31. Across South Dakota the window opens between May 17 and May 29, depending on the local last frost.

How is this date worked out?

Plant out 3–5 weeks after the last frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.