When to plant Lima beans in Washington

In spring, from Mar 15 – June 1 in Burien to May 25 – June 15 in Pullman.

In fall, from June 1 – 15 in Airway Heights to Aug 1 – Sept 15 in Port Townsend.

USDA's earliest safe spring and latest safe fall planting dates, matched to each place's average frost dates.

Lima beans planting dates by place in Washington
PlaceSpringFall
AberdeenApr 15 – June 20July 1 – Aug 15
Airway HeightsMay 15 – June 15June 1 – 15
AnacortesMar 20 – June 1July 15 – Sept 1
ArlingtonMay 1 – June 20June 15 – 30
AuburnApr 1 – June 15July 1 – Aug 15
Bainbridge IslandApr 15 – June 20July 1 – Aug 15
Battle GroundMay 15 – June 15June 15 – 30
BellevueMar 20 – June 1July 15 – Sept 1
BellinghamApr 15 – June 20July 1 – Aug 1
Bonney LakeApr 1 – June 30July 1 – Aug 1
BothellMar 20 – June 1July 15 – Sept 1
BremertonApr 15 – June 20July 1 – Aug 15
BurienMar 15 – June 1July 15 – Sept 1
BurlingtonApr 1 – June 15July 1 – Aug 1
CamasApr 1 – June 15July 15 – Sept 1
CentraliaMay 1 – June 20July 1 – Aug 1
CheneyNot listedNot listed
CovingtonMay 1 – June 20June 15 – 30
Des MoinesMar 15 – June 1July 15 – Sept 1
East WenatcheeApr 15 – June 20July 1 – Aug 1
EdgewoodMar 20 – June 1July 1 – Aug 15
EdmondsMar 20 – June 1July 15 – Sept 1
EllensburgMay 25 – June 15June 1 – 15
EnumclawApr 1 – June 30July 1 – Aug 1
EverettApr 1 – June 15July 1 – Aug 1
Federal WayMar 20 – June 1July 1 – Aug 15
FerndaleApr 15 – June 20July 1 – Aug 1
FifeMar 20 – June 1July 1 – Aug 15
Gig HarborMar 20 – June 1July 15 – Sept 1
GrandviewMay 15 – June 15June 1 – 15
IssaquahMar 20 – June 1July 15 – Sept 1
KelsoApr 1 – June 30July 1 – Aug 15
KenmoreMar 20 – June 1July 15 – Sept 1
KennewickApr 15 – June 20July 1 – Aug 1
KentApr 1 – June 15July 1 – Aug 15
KirklandMar 20 – June 1July 15 – Sept 1
LaceyMay 15 – June 15June 1 – 15
Lake Forest ParkMar 20 – June 1July 15 – Sept 1
Lake StevensApr 1 – June 15July 1 – Aug 1
LakewoodMar 20 – June 1July 15 – Sept 1
Liberty LakeMay 15 – June 15June 1 – 15
LongviewApr 1 – June 30July 1 – Aug 15
LyndenMay 1 – June 20June 15 – 30
LynnwoodMar 20 – June 1July 15 – Sept 1
Maple ValleyMay 1 – June 20June 15 – 30
MarysvilleApr 1 – June 15July 1 – Aug 1
Mercer IslandMar 20 – June 1July 15 – Sept 1
Mill CreekMar 20 – June 1July 15 – Sept 1
MonroeMay 1 – June 20June 15 – 30
Moses LakeMay 15 – June 15June 1 – 15
Mount VernonApr 1 – June 15July 1 – Aug 1
Mountlake TerraceMar 20 – June 1July 15 – Sept 1
MukilteoMar 20 – June 1July 15 – Sept 1
NewcastleMar 20 – June 1July 15 – Sept 1
Oak HarborMar 20 – June 1July 1 – Aug 15
OlympiaMay 15 – June 15June 1 – 15
PascoMay 15 – June 15June 1 – 15
Port AngelesMar 20 – June 1July 15 – Sept 1
Port OrchardApr 15 – June 20July 1 – Aug 15
Port TownsendMar 15 – June 1Aug 1 – Sept 15
PoulsboApr 15 – June 20July 1 – Aug 15
PullmanMay 25 – June 15June 1 – 15
PuyallupApr 1 – June 30July 1 – Aug 1
RedmondMar 20 – June 1July 15 – Sept 1
RentonMar 20 – June 1July 15 – Sept 1
RichlandApr 1 – June 30June 15 – 30
RidgefieldMay 15 – June 15June 15 – 30
SammamishApr 15 – June 20July 1 – Aug 15
SeaTacMar 15 – June 1July 15 – Sept 1
SeattleMar 20 – June 1July 15 – Sept 1
Sedro-WoolleyApr 15 – June 20July 1 – Aug 15
SheltonMay 15 – June 15June 15 – 30
ShorelineMar 20 – June 1July 15 – Sept 1
SnohomishApr 1 – June 15July 1 – Aug 1
SnoqualmieApr 15 – June 20July 1 – Aug 15
SpokaneMay 15 – June 15June 1 – 15
Spokane ValleyMay 15 – June 15June 1 – 15
SumnerApr 1 – June 30July 1 – Aug 1
SunnysideMay 15 – June 15June 1 – 15
TacomaMar 20 – June 1July 1 – Aug 15
TukwilaMar 15 – June 1July 15 – Sept 1
TumwaterMay 15 – June 15June 1 – 15
University PlaceMar 20 – June 1July 15 – Sept 1
VancouverApr 15 – June 20July 1 – Aug 15
Walla WallaApr 15 – June 20July 1 – Aug 1
WashougalApr 15 – June 20July 15 – Sept 1
WenatcheeApr 15 – June 20July 1 – Aug 1
West RichlandApr 1 – June 30June 15 – 30
WoodinvilleMar 20 – June 1July 15 – Sept 1
YakimaApr 1 – June 30June 15 – 30
YelmMay 15 – June 15June 1 – 15

Planting dates: USDA Home and Garden Bulletin No. 9 (1967), tables 4 and 5. Frost dates: NOAA U.S. Climate Normals 1991–2020. “—” means the place's frost date is outside the table. The full USDA table for lima beans.