When to Plant Leeks in Delaware: Mar 24–Apr 7

When to plant leeks in Delaware

Plant out in Wilmington

Mar 24–Apr 7

Across Delaware the window opens between March 21 and March 24. Find your city below; the dates follow each town's own average last frost.

Start indoors, Wilmington: Jan 13–Jan 27
Plant out, Wilmington: Mar 24–Apr 7
Last frost, Wilmington: Apr 7

Start seeds indoors 10–12 weeks before the last frost; plant out up to 2 weeks before the last frost. Plant leeks deep in a trench and fill it in as they grow to get long white stems.

Leeks planting dates by city

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost

JanFebMarAprMayJunJulAugSepOctNovDec

WilmingtonMar 24–Apr 7

DoverMar 21–Apr 4

NewarkMar 24–Apr 7

MiddletownMar 24–Apr 7

BearMar 24–Apr 7

Questions

When should I plant leeks in Delaware?

In Wilmington, plant out from March 24 to April 7. Across Delaware the window opens between March 21 and March 24, depending on the local last frost.

How is this date worked out?

Start seeds indoors 10–12 weeks before the last frost; plant out up to 2 weeks before the last frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.

When to plant leeks in Delaware

Leeks planting dates by city

Questions

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