FrostCal

When to Plant Spinach in Washington

In a typical Washington location, sow outdoors Feb 10 – Feb 24. Across the state, the outdoor planting window starts as early as Jan 18 in Port Townsend and as late as Apr 18 in Cheney. For a fall crop, plant around Sep 15 – Sep 29.

Method Direct sow
Days to maturity 40–50 days

Very cold-hardy; direct sow 4-6 weeks before last frost as soon as soil can be worked.

Spinach Planting Dates by City

CityDirect sowFall planting
SeattleJan 30 – Feb 13Sep 22 – Oct 6
Tri-CitiesMar 16 – Mar 30Aug 16 – Aug 30
SpokaneMar 15 – Mar 29Aug 20 – Sep 3
TacomaJan 25 – Feb 8Sep 19 – Oct 3
VancouverFeb 15 – Mar 1Sep 14 – Sep 28
BellevueJan 25 – Feb 8Sep 28 – Oct 12
KentFeb 6 – Feb 20Sep 15 – Sep 29
EverettFeb 10 – Feb 24Sep 7 – Sep 21
RentonJan 30 – Feb 13Sep 21 – Oct 5
Federal WayJan 25 – Feb 8Sep 19 – Oct 3
Spokane ValleyMar 15 – Mar 29Aug 20 – Sep 3
YakimaMar 27 – Apr 10Aug 9 – Aug 23
KirklandJan 25 – Feb 8Sep 28 – Oct 12
BellinghamFeb 18 – Mar 4Sep 7 – Sep 21
KennewickFeb 14 – Feb 28Sep 4 – Sep 18
AuburnFeb 6 – Feb 20Sep 15 – Sep 29
PascoFeb 14 – Feb 28Sep 4 – Sep 18
MarysvilleFeb 10 – Feb 24Sep 7 – Sep 21
RedmondJan 25 – Feb 8Sep 28 – Oct 12
LakewoodJan 28 – Feb 11Sep 26 – Oct 10
OlympiaMar 18 – Apr 1Aug 19 – Sep 2
ShorelineJan 25 – Feb 8Sep 28 – Oct 12
RichlandFeb 23 – Mar 9Aug 29 – Sep 12
South HillFeb 28 – Mar 14Sep 4 – Sep 18
SammamishJan 25 – Feb 8Sep 28 – Oct 12
BurienJan 19 – Feb 2Sep 28 – Oct 12
LaceyMar 18 – Apr 1Aug 19 – Sep 2
City of SammamishFeb 16 – Mar 2Sep 12 – Sep 26
BothellJan 25 – Feb 8Sep 28 – Oct 12
EdmondsJan 26 – Feb 9Sep 22 – Oct 6

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 spinach in Washington?

In a typical Washington location, sow outdoors Feb 10 – Feb 24. Across the state, the outdoor planting window starts as early as Jan 18 in Port Townsend and as late as Apr 18 in Cheney. For a fall crop, plant around Sep 15 – Sep 29.

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 spinach take to grow?

Spinach typically take 40–50 days from planting to harvest. Very cold-hardy; direct sow 4-6 weeks before last frost as soon as soil can be worked.

Other Crops in Washington

When to plant spinach in other states

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