When to plant Lettuce in Oregon

In spring, from Jan 1 – Mar 15 in Coos Bay to May 20 – June 30 in Redmond.

In fall, from May 15 – July 15 in Baker City to Sept 15 – Dec 31 in North Bend.

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

Leaf lettuce planting dates by place in Oregon
PlaceSpringFall
AlbanyMar 20 – May 15Aug 15 – Oct 1
AshlandApr 15 – June 15July 15 – Sept 1
Baker CityMay 1 – June 30May 15 – July 15
BeavertonFeb 15 – Apr 15Aug 25 – Oct 1
BendMay 20 – June 30June 1 – Aug 1
CanbyFeb 1 – Apr 1Aug 25 – Oct 1
Central PointMar 15 – May 15Aug 15 – Oct 1
Coos BayJan 1 – Mar 15Sept 15 – Dec 31Now
CorneliusMar 20 – May 15Aug 15 – Oct 1
CorvallisMar 20 – May 15Aug 15 – Oct 1
Cottage GroveMar 20 – May 15July 15 – Sept 1
DallasMar 20 – May 15Aug 15 – Oct 1
EugeneMar 15 – May 15July 15 – Sept 1
FairviewFeb 1 – Apr 1Sept 1 – Nov 1Now
Forest GroveMar 20 – May 15Aug 15 – Oct 1
GladstoneFeb 1 – Apr 1Sept 1 – Nov 1Now
Grants PassMar 15 – May 15Aug 15 – Oct 1
GreshamFeb 1 – Apr 1Sept 1 – Nov 1Now
Happy ValleyFeb 1 – Apr 1Sept 1 – Nov 1Now
HermistonApr 1 – June 1July 15 – Sept 1
HillsboroMar 20 – May 15July 15 – Sept 1
IndependenceMar 20 – May 15Aug 15 – Oct 1
KeizerFeb 15 – Apr 15Aug 15 – Oct 1
Klamath FallsMay 20 – June 30June 1 – Aug 1
La GrandeApr 15 – June 15June 1 – Aug 1
Lake OswegoFeb 1 – Apr 1Sept 1 – Nov 1Now
LebanonJan 15 – Apr 1Sept 1 – Nov 1Now
Lincoln CityFeb 15 – Apr 15Sept 1 – Nov 1Now
McMinnvilleMar 15 – May 15Aug 25 – Oct 1
MedfordMar 15 – May 15Aug 15 – Oct 1
MilwaukieJan 1 – Mar 15Sept 1 – Dec 1Now
MolallaFeb 1 – Apr 1Sept 1 – Nov 1Now
MonmouthMar 20 – May 15Aug 15 – Oct 1
NewbergFeb 1 – Apr 1Sept 1 – Nov 1Now
NewportJan 1 – Mar 15Sept 15 – Dec 31Now
North BendJan 1 – Mar 15Sept 15 – Dec 31Now
OntarioMar 20 – May 15July 15 – Sept 1
Oregon CityFeb 1 – Apr 1Sept 1 – Nov 1Now
PendletonMar 20 – May 15July 15 – Sept 1
PortlandJan 1 – Mar 15Sept 1 – Dec 1Now
PrinevilleMay 10 – June 30June 1 – Aug 1
RedmondMay 20 – June 30May 15 – July 15
RoseburgFeb 1 – Apr 1Sept 1 – Nov 1Now
SalemFeb 15 – Apr 15Aug 15 – Oct 1
SandyFeb 15 – Apr 15Sept 1 – Nov 1Now
SherwoodFeb 1 – Apr 1Sept 1 – Nov 1Now
SilvertonFeb 15 – Apr 15Aug 25 – Oct 1
SpringfieldMar 15 – May 15July 15 – Sept 1
St. HelensMar 20 – May 15Aug 25 – Oct 1
Sweet HomeMar 15 – May 15Aug 15 – Oct 1
The DallesMar 15 – May 15Aug 15 – Oct 1
TigardFeb 15 – Apr 15Aug 25 – Oct 1
TroutdaleFeb 15 – Apr 15Sept 1 – Nov 1Now
TualatinFeb 15 – Apr 15Aug 25 – Oct 1
West LinnFeb 1 – Apr 1Sept 1 – Nov 1Now
WilsonvilleFeb 1 – Apr 1Aug 25 – Oct 1
WoodburnFeb 1 – Apr 1Aug 25 – Oct 1

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 leaf lettuce.