When to plant leeks 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 14–Dec 28
Plant out, Seattle: Feb 22–Mar 8
Last frost, Seattle: Mar 8

Start seeds indoors 10–12 weeks before the last frost; plant out up to 2 weeks before the last frost. Plant leeks deep in a trench and fill it in as they grow to get long white stems.

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

Questions

When should I plant leeks 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 10–12 weeks before the last frost; plant out up to 2 weeks before the last frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.

More for Washington

Leeks in other states

Frost dates for every city in Washington