FrostCal

When to Plant Cucumbers in Delaware

In a typical Delaware location, start seeds indoors Mar 10 – Mar 17, then sow outdoors Apr 14 – Apr 21, then transplant outdoors Apr 14 – Apr 21. Across the state, the outdoor planting window starts as early as Apr 6 in Claymont and as late as Apr 26 in Hockessin.

Method Start indoors, then transplant
Days to maturity 50–65 days

Can be started indoors 3-4 weeks before transplanting, or direct-sown 1-2 weeks after last frost once soil is warm.

Cucumbers Planting Dates by City

CityStart indoorsDirect sowTransplant
WilmingtonMar 10 – Mar 17Apr 14 – Apr 21Apr 14 – Apr 21
DoverMar 7 – Mar 14Apr 11 – Apr 18Apr 11 – Apr 18
NewarkMar 10 – Mar 17Apr 14 – Apr 21Apr 14 – Apr 21
MiddletownMar 10 – Mar 17Apr 14 – Apr 21Apr 14 – Apr 21
BearMar 10 – Mar 17Apr 14 – Apr 21Apr 14 – Apr 21
BrooksideMar 10 – Mar 17Apr 14 – Apr 21Apr 14 – Apr 21
GlasgowMar 10 – Mar 17Apr 14 – Apr 21Apr 14 – Apr 21
HockessinMar 22 – Mar 29Apr 26 – May 3Apr 26 – May 3
SmyrnaMar 7 – Mar 14Apr 11 – Apr 18Apr 11 – Apr 18
Pike Creek ValleyMar 10 – Mar 17Apr 14 – Apr 21Apr 14 – Apr 21
MilfordMar 14 – Mar 21Apr 18 – Apr 25Apr 18 – Apr 25
ClaymontMar 2 – Mar 9Apr 6 – Apr 13Apr 6 – Apr 13
North StarMar 10 – Mar 17Apr 14 – Apr 21Apr 14 – Apr 21
Pike CreekMar 10 – Mar 17Apr 14 – Apr 21Apr 14 – Apr 21
Wilmington ManorMar 10 – Mar 17Apr 14 – Apr 21Apr 14 – Apr 21
SeafordMar 14 – Mar 21Apr 18 – Apr 25Apr 18 – Apr 25
GeorgetownMar 7 – Mar 14Apr 11 – Apr 18Apr 11 – Apr 18
ElsmereMar 10 – Mar 17Apr 14 – Apr 21Apr 14 – Apr 21
EdgemoorMar 10 – Mar 17Apr 14 – Apr 21Apr 14 – Apr 21
New CastleMar 10 – Mar 17Apr 14 – Apr 21Apr 14 – Apr 21

Showing the 20 most populous of 20 Delaware cities. Dates are estimates from each city's NOAA frost normals and university extension timing guidelines. See all Delaware cities.

Frequently Asked Questions

When should I plant cucumbers in Delaware?

In a typical Delaware location, start seeds indoors Mar 10 – Mar 17, then sow outdoors Apr 14 – Apr 21, then transplant outdoors Apr 14 – Apr 21. Across the state, the outdoor planting window starts as early as Apr 6 in Claymont and as late as Apr 26 in Hockessin.

When is the last frost in Delaware?

The average last spring frost in Delaware ranges from March 30 in Claymont to April 19 in Hockessin, based on NOAA 1991–2020 climate normals.

How long do cucumbers take to grow?

Cucumbers typically take 50–65 days from planting to harvest. Can be started indoors 3-4 weeks before transplanting, or direct-sown 1-2 weeks after last frost once soil is warm.

Other Crops in Delaware

When to plant cucumbers in other states

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