When to Plant Sweet potatoes in Delaware: Apr 28–May 12

When to plant sweet potatoes in Delaware

Plant out in Wilmington

Apr 28–May 12

Across Delaware the window opens between April 25 and April 28. 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

WilmingtonApr 28–May 12

DoverApr 25–May 9

NewarkApr 28–May 12

MiddletownApr 28–May 12

BearApr 28–May 12

Questions

When should I plant sweet potatoes in Delaware?

In Wilmington, plant out from April 28 to May 12. Across Delaware the window opens between April 25 and April 28, 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.