FrostCal

When to Plant Arugula in Washington

In a typical Washington location, sow outdoors Feb 24 – Mar 10. Across the state, the outdoor planting window starts as early as Feb 1 in Port Townsend and as late as May 2 in Cheney. For a fall crop, plant around Sep 29 – Oct 6.

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
SeattleFeb 13 – Feb 27Oct 6 – Oct 13
Tri-CitiesMar 30 – Apr 13Aug 30 – Sep 6
SpokaneMar 29 – Apr 12Sep 3 – Sep 10
TacomaFeb 8 – Feb 22Oct 3 – Oct 10
VancouverMar 1 – Mar 15Sep 28 – Oct 5
BellevueFeb 8 – Feb 22Oct 12 – Oct 19
KentFeb 20 – Mar 6Sep 29 – Oct 6
EverettFeb 24 – Mar 10Sep 21 – Sep 28
RentonFeb 13 – Feb 27Oct 5 – Oct 12
Federal WayFeb 8 – Feb 22Oct 3 – Oct 10
Spokane ValleyMar 29 – Apr 12Sep 3 – Sep 10
YakimaApr 10 – Apr 24Aug 23 – Aug 30
KirklandFeb 8 – Feb 22Oct 12 – Oct 19
BellinghamMar 4 – Mar 18Sep 21 – Sep 28
KennewickFeb 28 – Mar 14Sep 18 – Sep 25
AuburnFeb 20 – Mar 6Sep 29 – Oct 6
PascoFeb 28 – Mar 14Sep 18 – Sep 25
MarysvilleFeb 24 – Mar 10Sep 21 – Sep 28
RedmondFeb 8 – Feb 22Oct 12 – Oct 19
LakewoodFeb 11 – Feb 25Oct 10 – Oct 17
OlympiaApr 1 – Apr 15Sep 2 – Sep 9
ShorelineFeb 8 – Feb 22Oct 12 – Oct 19
RichlandMar 9 – Mar 23Sep 12 – Sep 19
South HillMar 14 – Mar 28Sep 18 – Sep 25
SammamishFeb 8 – Feb 22Oct 12 – Oct 19
BurienFeb 2 – Feb 16Oct 12 – Oct 19
LaceyApr 1 – Apr 15Sep 2 – Sep 9
City of SammamishMar 2 – Mar 16Sep 26 – Oct 3
BothellFeb 8 – Feb 22Oct 12 – Oct 19
EdmondsFeb 9 – Feb 23Oct 6 – Oct 13

Showing the 30 most populous of 133 Washington cities. Dates are estimates from each city's NOAA frost normals and university extension timing guidelines. See all Washington cities.

Frequently Asked Questions

When should I plant arugula in Washington?

In a typical Washington location, sow outdoors Feb 24 – Mar 10. Across the state, the outdoor planting window starts as early as Feb 1 in Port Townsend and as late as May 2 in Cheney. For a fall crop, plant around Sep 29 – Oct 6.

When is the last frost in Washington?

The average last spring frost in Washington ranges from March 1 in Port Townsend to May 30 in Cheney, 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 Washington

When to plant arugula in other states

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