When to plant tomatoes in Oregon

Plant out in Portland

Mar 4–Mar 18

Across Oregon the window opens between February 18 and June 16. Find your city below; the dates follow each town's own average last frost.

Start indoors, Portland: Dec 31–Jan 14
Plant out, Portland: Mar 4–Mar 18
Last sowing for a harvest: Aug 24
Last frost, Portland: Feb 25

Start seeds indoors 6–8 weeks before the last frost; plant out 1–3 weeks after the last frost. Wait for nights that stay above 50°F. A cold snap after transplanting stalls tomatoes for weeks.

Tomatoes planting dates by city

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost

JanFebMarAprMayJunJulAugSepOctNovDec

PortlandMar 4–Mar 18

SalemApr 10–Apr 24

EugeneApr 18–May 2

GreshamMar 23–Apr 6

HillsboroApr 23–May 7

BendJun 13–Jun 27

BeavertonApr 8–Apr 22

MedfordApr 15–Apr 29

CorvallisApr 24–May 8

SpringfieldApr 18–May 2

TigardApr 8–Apr 22

AlbanyApr 24–May 8

AlohaFeb 18–Mar 4

Lake OswegoMar 25–Apr 8

Grants PassApr 15–Apr 29

KeizerApr 10–Apr 24

RedmondJun 16–Jun 30

Oregon CityMar 25–Apr 8

McMinnvilleApr 12–Apr 26

WoodburnMar 23–Apr 6

BethanyFeb 18–Mar 4

Happy ValleyMar 25–Apr 8

TualatinApr 8–Apr 22

WilsonvilleMar 25–Apr 8

Forest GroveApr 23–May 7

NewbergMar 28–Apr 11

West LinnMar 25–Apr 8

RoseburgMar 30–Apr 13

HayesvilleApr 10–Apr 24

MilwaukieMar 4–Mar 18

All 34 cities

City	Start indoors	Plant out	Last frost
Portland	Dec 31 to Jan 14	Mar 4 to Mar 18	Feb 25
Salem	Feb 6 to Feb 20	Apr 10 to Apr 24	Apr 3
Eugene	Feb 14 to Feb 28	Apr 18 to May 2	Apr 11
Gresham	Jan 19 to Feb 2	Mar 23 to Apr 6	Mar 16
Hillsboro	Feb 19 to Mar 5	Apr 23 to May 7	Apr 16
Bend	Apr 11 to Apr 25	Jun 13 to Jun 27	Jun 6
Beaverton	Feb 4 to Feb 18	Apr 8 to Apr 22	Apr 1
Medford	Feb 11 to Feb 25	Apr 15 to Apr 29	Apr 8
Corvallis	Feb 20 to Mar 6	Apr 24 to May 8	Apr 17
Springfield	Feb 14 to Feb 28	Apr 18 to May 2	Apr 11
Tigard	Feb 4 to Feb 18	Apr 8 to Apr 22	Apr 1
Albany	Feb 20 to Mar 6	Apr 24 to May 8	Apr 17
Aloha	Dec 17 to Dec 31	Feb 18 to Mar 4	Feb 11
Lake Oswego	Jan 21 to Feb 4	Mar 25 to Apr 8	Mar 18
Grants Pass	Feb 11 to Feb 25	Apr 15 to Apr 29	Apr 8
Keizer	Feb 6 to Feb 20	Apr 10 to Apr 24	Apr 3
Redmond	Apr 14 to Apr 28	Jun 16 to Jun 30	Jun 9
Oregon City	Jan 21 to Feb 4	Mar 25 to Apr 8	Mar 18
McMinnville	Feb 8 to Feb 22	Apr 12 to Apr 26	Apr 5
Woodburn	Jan 19 to Feb 2	Mar 23 to Apr 6	Mar 16
Bethany	Dec 17 to Dec 31	Feb 18 to Mar 4	Feb 11
Happy Valley	Jan 21 to Feb 4	Mar 25 to Apr 8	Mar 18
Tualatin	Feb 4 to Feb 18	Apr 8 to Apr 22	Apr 1
Wilsonville	Jan 21 to Feb 4	Mar 25 to Apr 8	Mar 18
Forest Grove	Feb 19 to Mar 5	Apr 23 to May 7	Apr 16
Newberg	Jan 24 to Feb 7	Mar 28 to Apr 11	Mar 21
West Linn	Jan 21 to Feb 4	Mar 25 to Apr 8	Mar 18
Roseburg	Jan 26 to Feb 9	Mar 30 to Apr 13	Mar 23
Hayesville	Feb 6 to Feb 20	Apr 10 to Apr 24	Apr 3
Milwaukie	Dec 31 to Jan 14	Mar 4 to Mar 18	Feb 25
Klamath Falls	Apr 14 to Apr 28	Jun 16 to Jun 30	Jun 9
Ashland	Mar 11 to Mar 25	May 13 to May 27	May 6
Sherwood	Jan 24 to Feb 7	Mar 28 to Apr 11	Mar 21
Lebanon	Jan 17 to Jan 31	Mar 21 to Apr 4	Mar 14

In Redmond the frost-free season is shorter than tomatoes need. Start plants indoors and pick early varieties.

Questions

When should I plant tomatoes in Oregon?

In Portland, plant out from March 4 to March 18. Across Oregon the window opens between February 18 and June 16, depending on the local last frost.

How is this date worked out?

Start seeds indoors 6–8 weeks before the last frost; plant out 1–3 weeks after the last frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.

Is the season long enough for tomatoes everywhere in Oregon?

Not quite. In Redmond the frost-free season is shorter than the time tomatoes need to ripen. Start plants indoors and pick an early variety.