When to plant cucumbers in Oregon

Cucumbers
Plant out in Portland
Mar 11–Mar 18

Across Oregon the window opens between February 25 and June 23. Find your city below; the dates follow each town's own average last frost.

Start indoors, Portland
Jan 28–Feb 4
Plant out, Portland
Mar 11–Mar 18
Sow outdoors, Portland
Mar 4–Mar 18
Last sowing for a harvest
Sep 8
Last frost, Portland
Feb 25

Start seeds indoors 3–4 weeks before the last frost; plant out 2–3 weeks after the last frost; sow outdoors 1–3 weeks after the last frost. Cucumbers rot in cold soil. Sow when the soil is at least 65°F.

Cucumbers planting dates by city

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost
JanFebMarAprMayJunJulAugSepOctNovDec
PortlandMar 11–Mar 18
SalemApr 17–Apr 24
EugeneApr 25–May 2
GreshamMar 30–Apr 6
HillsboroApr 30–May 7
BendJun 20–Jun 27
BeavertonApr 15–Apr 22
MedfordApr 22–Apr 29
CorvallisMay 1–May 8
SpringfieldApr 25–May 2
TigardApr 15–Apr 22
AlbanyMay 1–May 8
AlohaFeb 25–Mar 4
Lake OswegoApr 1–Apr 8
Grants PassApr 22–Apr 29
KeizerApr 17–Apr 24
RedmondJun 23–Jun 30
Oregon CityApr 1–Apr 8
McMinnvilleApr 19–Apr 26
WoodburnMar 30–Apr 6
BethanyFeb 25–Mar 4
Happy ValleyApr 1–Apr 8
TualatinApr 15–Apr 22
WilsonvilleApr 1–Apr 8
Forest GroveApr 30–May 7
NewbergApr 4–Apr 11
West LinnApr 1–Apr 8
RoseburgApr 6–Apr 13
HayesvilleApr 17–Apr 24
MilwaukieMar 11–Mar 18
All 34 cities
CityStart indoorsPlant outSow outdoorsLast frost
PortlandJan 28 to Feb 4Mar 11 to Mar 18Mar 4 to Mar 18Feb 25
SalemMar 6 to Mar 13Apr 17 to Apr 24Apr 10 to Apr 24Apr 3
EugeneMar 14 to Mar 21Apr 25 to May 2Apr 18 to May 2Apr 11
GreshamFeb 16 to Feb 23Mar 30 to Apr 6Mar 23 to Apr 6Mar 16
HillsboroMar 19 to Mar 26Apr 30 to May 7Apr 23 to May 7Apr 16
BendMay 9 to May 16Jun 20 to Jun 27Jun 13 to Jun 27Jun 6
BeavertonMar 4 to Mar 11Apr 15 to Apr 22Apr 8 to Apr 22Apr 1
MedfordMar 11 to Mar 18Apr 22 to Apr 29Apr 15 to Apr 29Apr 8
CorvallisMar 20 to Mar 27May 1 to May 8Apr 24 to May 8Apr 17
SpringfieldMar 14 to Mar 21Apr 25 to May 2Apr 18 to May 2Apr 11
TigardMar 4 to Mar 11Apr 15 to Apr 22Apr 8 to Apr 22Apr 1
AlbanyMar 20 to Mar 27May 1 to May 8Apr 24 to May 8Apr 17
AlohaJan 14 to Jan 21Feb 25 to Mar 4Feb 18 to Mar 4Feb 11
Lake OswegoFeb 18 to Feb 25Apr 1 to Apr 8Mar 25 to Apr 8Mar 18
Grants PassMar 11 to Mar 18Apr 22 to Apr 29Apr 15 to Apr 29Apr 8
KeizerMar 6 to Mar 13Apr 17 to Apr 24Apr 10 to Apr 24Apr 3
RedmondMay 12 to May 19Jun 23 to Jun 30Jun 16 to Jun 30Jun 9
Oregon CityFeb 18 to Feb 25Apr 1 to Apr 8Mar 25 to Apr 8Mar 18
McMinnvilleMar 8 to Mar 15Apr 19 to Apr 26Apr 12 to Apr 26Apr 5
WoodburnFeb 16 to Feb 23Mar 30 to Apr 6Mar 23 to Apr 6Mar 16
BethanyJan 14 to Jan 21Feb 25 to Mar 4Feb 18 to Mar 4Feb 11
Happy ValleyFeb 18 to Feb 25Apr 1 to Apr 8Mar 25 to Apr 8Mar 18
TualatinMar 4 to Mar 11Apr 15 to Apr 22Apr 8 to Apr 22Apr 1
WilsonvilleFeb 18 to Feb 25Apr 1 to Apr 8Mar 25 to Apr 8Mar 18
Forest GroveMar 19 to Mar 26Apr 30 to May 7Apr 23 to May 7Apr 16
NewbergFeb 21 to Feb 28Apr 4 to Apr 11Mar 28 to Apr 11Mar 21
West LinnFeb 18 to Feb 25Apr 1 to Apr 8Mar 25 to Apr 8Mar 18
RoseburgFeb 23 to Mar 2Apr 6 to Apr 13Mar 30 to Apr 13Mar 23
HayesvilleMar 6 to Mar 13Apr 17 to Apr 24Apr 10 to Apr 24Apr 3
MilwaukieJan 28 to Feb 4Mar 11 to Mar 18Mar 4 to Mar 18Feb 25
Klamath FallsMay 12 to May 19Jun 23 to Jun 30Jun 16 to Jun 30Jun 9
AshlandApr 8 to Apr 15May 20 to May 27May 13 to May 27May 6
SherwoodFeb 21 to Feb 28Apr 4 to Apr 11Mar 28 to Apr 11Mar 21
LebanonFeb 14 to Feb 21Mar 28 to Apr 4Mar 21 to Apr 4Mar 14

Questions

When should I plant cucumbers in Oregon?

In Portland, plant out from March 11 to March 18. Across Oregon the window opens between February 25 and June 23, depending on the local last frost.

How is this date worked out?

Start seeds indoors 3–4 weeks before the last frost; plant out 2–3 weeks after the last frost; sow outdoors 1–3 weeks after the last frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.

More for Oregon

Cucumbers in other states

Frost dates for every city in Oregon