When to plant corn in Delaware

Corn
Sow outdoors in Wilmington
Apr 14–Apr 28

Across Delaware the window opens between April 11 and April 14. Find your city below; the dates follow each town's own average last frost.

Sow outdoors, Wilmington
Apr 14–Apr 28
Last sowing for a harvest
Jul 13
Last frost, Wilmington
Apr 7

Sow outdoors 1–3 weeks after the last frost. Plant in blocks of at least four rows rather than one long row. Corn is pollinated by wind.

Corn planting dates by city

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost
JanFebMarAprMayJunJulAugSepOctNovDec
WilmingtonApr 14–Apr 28
DoverApr 11–Apr 25
NewarkApr 14–Apr 28
MiddletownApr 14–Apr 28
BearApr 14–Apr 28

Questions

When should I plant corn in Delaware?

In Wilmington, sow outdoors from April 14 to April 28. Across Delaware the window opens between April 11 and April 14, depending on the local last frost.

How is this date worked out?

Sow outdoors 1–3 weeks after the last frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.

More for Delaware

Corn in other states

Frost dates for every city in Delaware