FrostCal

When to Plant Arugula in Delaware

In a typical Delaware location, sow outdoors Mar 10 – Mar 24. Across the state, the outdoor planting window starts as early as Mar 2 in Claymont and as late as Mar 22 in Hockessin. For a fall crop, plant around Sep 21 – Sep 28.

Method Direct sow
Days to maturity 30–40 days

Fast-growing, cold-tolerant green; direct sow 2-4 weeks before last frost, succession sow every 2-3 weeks.

Arugula Planting Dates by City

CityDirect sowFall planting
WilmingtonMar 10 – Mar 24Sep 23 – Sep 30
DoverMar 7 – Mar 21Sep 23 – Sep 30
NewarkMar 10 – Mar 24Sep 21 – Sep 28
MiddletownMar 10 – Mar 24Sep 21 – Sep 28
BearMar 10 – Mar 24Sep 20 – Sep 27
BrooksideMar 10 – Mar 24Sep 21 – Sep 28
GlasgowMar 10 – Mar 24Sep 21 – Sep 28
HockessinMar 22 – Apr 5Sep 14 – Sep 21
SmyrnaMar 7 – Mar 21Sep 23 – Sep 30
Pike Creek ValleyMar 10 – Mar 24Sep 21 – Sep 28
MilfordMar 14 – Mar 28Sep 18 – Sep 25
ClaymontMar 2 – Mar 16Oct 5 – Oct 12
North StarMar 10 – Mar 24Sep 21 – Sep 28
Pike CreekMar 10 – Mar 24Sep 21 – Sep 28
Wilmington ManorMar 10 – Mar 24Sep 20 – Sep 27
SeafordMar 14 – Mar 28Sep 18 – Sep 25
GeorgetownMar 7 – Mar 21Sep 25 – Oct 2
ElsmereMar 10 – Mar 24Sep 23 – Sep 30
EdgemoorMar 10 – Mar 24Sep 23 – Sep 30
New CastleMar 10 – Mar 24Sep 20 – Sep 27

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 arugula in Delaware?

In a typical Delaware location, sow outdoors Mar 10 – Mar 24. Across the state, the outdoor planting window starts as early as Mar 2 in Claymont and as late as Mar 22 in Hockessin. For a fall crop, plant around Sep 21 – Sep 28.

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 arugula take to grow?

Arugula typically take 30–40 days from planting to harvest. Fast-growing, cold-tolerant green; direct sow 2-4 weeks before last frost, succession sow every 2-3 weeks.

Other Crops in Delaware

When to plant arugula in other states

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