When to plant cauliflower in Washington

Plant out in Seattle

Feb 22–Mar 8

Across Washington the window opens between February 16 and April 24. Find your city below; the dates follow each town's own average last frost.

Start indoors, Seattle: Dec 28–Jan 11
Plant out, Seattle: Feb 22–Mar 8
Fall planting, Seattle: Aug 31–Sep 14
Last frost, Seattle: Mar 8

Start seeds indoors 8–10 weeks before the last frost; plant out up to 2 weeks before the last frost; sow again for fall 10–12 weeks before the first frost. When heads reach the size of an egg, tie the leaves over them to keep them white.

Cauliflower planting dates by city

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost

JanFebMarAprMayJunJulAugSepOctNovDec

SeattleFeb 22–Mar 8

SpokaneApr 12–Apr 26

TacomaFeb 22–Mar 8

VancouverMar 15–Mar 29

BellevueFeb 22–Mar 8

KentMar 6–Mar 20

EverettMar 10–Mar 24

Spokane ValleyApr 12–Apr 26

RentonFeb 27–Mar 13

Federal WayFeb 22–Mar 8

YakimaMar 25–Apr 8

KirklandFeb 22–Mar 8

BellinghamMar 18–Apr 1

KennewickMar 14–Mar 28

AuburnMar 6–Mar 20

PascoApr 13–Apr 27

RedmondFeb 22–Mar 8

MarysvilleMar 10–Mar 24

South HillMar 28–Apr 11

ShorelineFeb 22–Mar 8

SammamishMar 16–Mar 30

RichlandMar 23–Apr 6

LakewoodFeb 25–Mar 11

LaceyApr 15–Apr 29

OlympiaApr 15–Apr 29

BothellFeb 22–Mar 8

BurienFeb 16–Mar 2

BremertonMar 15–Mar 29

EdmondsFeb 23–Mar 9

PuyallupMar 28–Apr 11

All 76 cities

City	Start indoors	Plant out	Fall planting	Last frost
Seattle	Dec 28 to Jan 11	Feb 22 to Mar 8	Aug 31 to Sep 14	Mar 8
Spokane	Feb 15 to Mar 1	Apr 12 to Apr 26	Jul 23 to Aug 6	Apr 26
Tacoma	Dec 28 to Jan 11	Feb 22 to Mar 8	Aug 22 to Sep 5	Mar 8
Vancouver	Jan 18 to Feb 1	Mar 15 to Mar 29	Aug 17 to Aug 31	Mar 29
Bellevue	Dec 28 to Jan 11	Feb 22 to Mar 8	Aug 31 to Sep 14	Mar 8
Kent	Jan 9 to Jan 23	Mar 6 to Mar 20	Aug 18 to Sep 1	Mar 20
Everett	Jan 13 to Jan 27	Mar 10 to Mar 24	Aug 10 to Aug 24	Mar 24
Spokane Valley	Feb 15 to Mar 1	Apr 12 to Apr 26	Jul 23 to Aug 6	Apr 26
Renton	Jan 2 to Jan 16	Feb 27 to Mar 13	Aug 24 to Sep 7	Mar 13
Federal Way	Dec 28 to Jan 11	Feb 22 to Mar 8	Aug 22 to Sep 5	Mar 8
Yakima	Jan 28 to Feb 11	Mar 25 to Apr 8	Jul 31 to Aug 14	Apr 8
Kirkland	Dec 28 to Jan 11	Feb 22 to Mar 8	Aug 31 to Sep 14	Mar 8
Bellingham	Jan 21 to Feb 4	Mar 18 to Apr 1	Aug 10 to Aug 24	Apr 1
Kennewick	Jan 17 to Jan 31	Mar 14 to Mar 28	Aug 7 to Aug 21	Mar 28
Auburn	Jan 9 to Jan 23	Mar 6 to Mar 20	Aug 18 to Sep 1	Mar 20
Pasco	Feb 16 to Mar 2	Apr 13 to Apr 27	Jul 19 to Aug 2	Apr 27
Redmond	Dec 28 to Jan 11	Feb 22 to Mar 8	Aug 31 to Sep 14	Mar 8
Marysville	Jan 13 to Jan 27	Mar 10 to Mar 24	Aug 10 to Aug 24	Mar 24
South Hill	Jan 31 to Feb 14	Mar 28 to Apr 11	Aug 7 to Aug 21	Apr 11
Shoreline	Dec 28 to Jan 11	Feb 22 to Mar 8	Aug 31 to Sep 14	Mar 8
Sammamish	Jan 19 to Feb 2	Mar 16 to Mar 30	Aug 15 to Aug 29	Mar 30
Richland	Jan 26 to Feb 9	Mar 23 to Apr 6	Aug 1 to Aug 15	Apr 6
Lakewood	Dec 31 to Jan 14	Feb 25 to Mar 11	Aug 29 to Sep 12	Mar 11
Lacey	Feb 18 to Mar 4	Apr 15 to Apr 29	Jul 22 to Aug 5	Apr 29
Olympia	Feb 18 to Mar 4	Apr 15 to Apr 29	Jul 22 to Aug 5	Apr 29
Bothell	Dec 28 to Jan 11	Feb 22 to Mar 8	Aug 31 to Sep 14	Mar 8
Burien	Dec 22 to Jan 5	Feb 16 to Mar 2	Aug 31 to Sep 14	Mar 2
Bremerton	Jan 18 to Feb 1	Mar 15 to Mar 29	Aug 22 to Sep 5	Mar 29
Edmonds	Dec 29 to Jan 12	Feb 23 to Mar 9	Aug 25 to Sep 8	Mar 9
Puyallup	Jan 31 to Feb 14	Mar 28 to Apr 11	Aug 7 to Aug 21	Apr 11
Lynnwood	Dec 29 to Jan 12	Feb 23 to Mar 9	Aug 25 to Sep 8	Mar 9
Lake Stevens	Jan 13 to Jan 27	Mar 10 to Mar 24	Aug 10 to Aug 24	Mar 24
Issaquah	Jan 2 to Jan 16	Feb 27 to Mar 13	Aug 24 to Sep 7	Mar 13
Parkland	Dec 28 to Jan 11	Feb 22 to Mar 8	Aug 22 to Sep 5	Mar 8
Longview	Jan 28 to Feb 11	Mar 25 to Apr 8	Aug 13 to Aug 27	Apr 8
Wenatchee	Jan 24 to Feb 7	Mar 21 to Apr 4	Aug 5 to Aug 19	Apr 4
University Place	Dec 31 to Jan 14	Feb 25 to Mar 11	Aug 29 to Sep 12	Mar 11
Mount Vernon	Jan 13 to Jan 27	Mar 10 to Mar 24	Aug 11 to Aug 25	Mar 24
Graham	Jan 31 to Feb 14	Mar 28 to Apr 11	Aug 7 to Aug 21	Apr 11
SeaTac	Dec 22 to Jan 5	Feb 16 to Mar 2	Aug 31 to Sep 14	Mar 2
Spanaway	Jan 31 to Feb 14	Mar 28 to Apr 11	Aug 7 to Aug 21	Apr 11
Walla Walla	Jan 16 to Jan 30	Mar 13 to Mar 27	Aug 8 to Aug 22	Mar 27
Pullman	Feb 25 to Mar 11	Apr 22 to May 6	May 6
Des Moines	Dec 22 to Jan 5	Feb 16 to Mar 2	Aug 31 to Sep 14	Mar 2
Orchards	Feb 15 to Mar 1	Apr 12 to Apr 26	Jul 24 to Aug 7	Apr 26
Maple Valley	Feb 9 to Feb 23	Apr 6 to Apr 20	Aug 2 to Aug 16	Apr 20
Tumwater	Feb 18 to Mar 4	Apr 15 to Apr 29	Jul 22 to Aug 5	Apr 29
Camas	Jan 5 to Jan 19	Mar 2 to Mar 16	Aug 28 to Sep 11	Mar 16
Moses Lake	Feb 16 to Mar 2	Apr 13 to Apr 27	Jul 16 to Jul 30	Apr 27
Mill Creek East	Dec 29 to Jan 12	Feb 23 to Mar 9	Aug 25 to Sep 8	Mar 9
Mountlake Terrace	Dec 28 to Jan 11	Feb 22 to Mar 8	Aug 31 to Sep 14	Mar 8
Mercer Island	Jan 2 to Jan 16	Feb 27 to Mar 13	Aug 25 to Sep 8	Mar 13
Bainbridge Island	Jan 18 to Feb 1	Mar 15 to Mar 29	Aug 22 to Sep 5	Mar 29
Kenmore	Dec 28 to Jan 11	Feb 22 to Mar 8	Aug 31 to Sep 14	Mar 8
Frederickson	Jan 31 to Feb 14	Mar 28 to Apr 11	Aug 7 to Aug 21	Apr 11
Oak Harbor	Jan 2 to Jan 16	Feb 27 to Mar 13	Aug 22 to Sep 5	Mar 13
North Lynnwood	Dec 29 to Jan 12	Feb 23 to Mar 9	Aug 25 to Sep 8	Mar 9
Battle Ground	Feb 15 to Mar 1	Apr 12 to Apr 26	Jul 24 to Aug 7	Apr 26
Eastmont	Dec 29 to Jan 12	Feb 23 to Mar 9	Aug 25 to Sep 8	Mar 9
Union Hill-Novelty Hill	Dec 28 to Jan 11	Feb 22 to Mar 8	Aug 31 to Sep 14	Mar 8
Cottage Lake	Feb 6 to Feb 20	Apr 3 to Apr 17	Jul 31 to Aug 14	Apr 17
Hazel Dell	Feb 15 to Mar 1	Apr 12 to Apr 26	Jul 26 to Aug 9	Apr 26
Martha Lake	Dec 29 to Jan 12	Feb 23 to Mar 9	Aug 25 to Sep 8	Mar 9
Bonney Lake	Jan 31 to Feb 14	Mar 28 to Apr 11	Aug 7 to Aug 21	Apr 11
Arlington	Feb 11 to Feb 25	Apr 8 to Apr 22	Jul 27 to Aug 10	Apr 22
Tukwila	Dec 22 to Jan 5	Feb 16 to Mar 2	Aug 31 to Sep 14	Mar 2
Silver Firs	Dec 29 to Jan 12	Feb 23 to Mar 9	Aug 25 to Sep 8	Mar 9
Covington	Feb 9 to Feb 23	Apr 6 to Apr 20	Aug 2 to Aug 16	Apr 20
Five Corners	Feb 15 to Mar 1	Apr 12 to Apr 26	Jul 26 to Aug 9	Apr 26
Ellensburg	Feb 27 to Mar 13	Apr 24 to May 8	May 8
Mukilteo	Dec 29 to Jan 12	Feb 23 to Mar 9	Aug 25 to Sep 8	Mar 9
Silverdale	Jan 18 to Feb 1	Mar 15 to Mar 29	Aug 22 to Sep 5	Mar 29
Bothell West	Dec 29 to Jan 12	Feb 23 to Mar 9	Aug 25 to Sep 8	Mar 9
Mill Creek	Dec 29 to Jan 12	Feb 23 to Mar 9	Aug 25 to Sep 8	Mar 9
Port Angeles	Jan 1 to Jan 15	Feb 26 to Mar 12	Aug 27 to Sep 10	Mar 12
Monroe	Feb 6 to Feb 20	Apr 3 to Apr 17	Jul 31 to Aug 14	Apr 17

Questions

When should I plant cauliflower in Washington?

In Seattle, plant out from February 22 to March 8. Across Washington the window opens between February 16 and April 24, depending on the local last frost.

How is this date worked out?

Start seeds indoors 8–10 weeks before the last frost; plant out up to 2 weeks before the last frost; sow again for fall 10–12 weeks before the first frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.

More for Washington

Cauliflower in other states

Frost dates for every city in Washington