When to plant kale in Delaware

Plant out in Wilmington

Mar 10–Mar 24

Across Delaware the window opens between March 7 and March 10. Find your city below; the dates follow each town's own average last frost.

Plant out, Wilmington: Mar 10–Mar 24
Sow outdoors, Wilmington: Mar 10–Mar 24
Fall planting, Wilmington: Aug 26–Sep 9
Last frost, Wilmington: Apr 7

Plant out 2–4 weeks before the last frost; sow outdoors 2–4 weeks before the last frost; sow again for fall 8–10 weeks before the first frost. Kale keeps producing through frost and often into winter.

Kale planting dates by city

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost

JanFebMarAprMayJunJulAugSepOctNovDec

WilmingtonMar 10–Mar 24

DoverMar 7–Mar 21

NewarkMar 10–Mar 24

MiddletownMar 10–Mar 24

BearMar 10–Mar 24

Questions

When should I plant kale in Delaware?

In Wilmington, plant out from March 10 to March 24. Across Delaware the window opens between March 7 and March 10, depending on the local last frost.

How is this date worked out?

Plant out 2–4 weeks before the last frost; sow outdoors 2–4 weeks before the last frost; sow again for fall 8–10 weeks before the first frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.

More for Delaware

Kale in other states

Frost dates for every city in Delaware