When to plant tulip bulbs in Oregon

Fall planting in Portland

Nov 17–Dec 15

Across Oregon the window opens between August 31 and December 15. Find your city below; the dates follow each town's own average first fall frost.

Fall planting, Portland: Nov 17–Dec 15
Last frost, Portland: Feb 25

Plant from 2 weeks before to 3 weeks after the first fall frost. Plant once the soil has cooled below 60°F. Bulbs need 12–14 weeks of cold to flower in spring.

Tulip bulbs planting dates by city

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost

JanFebMarAprMayJunJulAugSepOctNovDec

PortlandNov 17–Dec 15

SalemOct 18–Nov 22

EugeneOct 9–Nov 13

GreshamNov 6–Dec 11

HillsboroOct 9–Nov 13

BendSep 6–Oct 11

BeavertonOct 23–Nov 27

MedfordOct 15–Nov 19

CorvallisOct 14–Nov 18

SpringfieldOct 9–Nov 13

TigardOct 23–Nov 27

AlbanyOct 14–Nov 18

AlohaDec 15–Jan 15

Lake OswegoNov 4–Dec 9

Grants PassOct 14–Nov 18

KeizerOct 18–Nov 22

RedmondAug 31–Oct 5

Oregon CityNov 4–Dec 9

McMinnvilleOct 24–Nov 28

WoodburnOct 31–Dec 5

BethanyDec 15–Jan 15

Happy ValleyNov 4–Dec 9

TualatinOct 23–Nov 27

WilsonvilleOct 30–Dec 4

Forest GroveOct 12–Nov 16

NewbergNov 8–Dec 13

West LinnNov 4–Dec 9

RoseburgNov 4–Dec 9

HayesvilleOct 18–Nov 22

MilwaukieNov 17–Dec 15

All 34 cities

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

Questions

When should I plant tulip bulbs in Oregon?

In Portland, fall planting from November 17 to December 15. Across Oregon the window opens between August 31 and December 15, depending on the local last frost.

How is this date worked out?

Plant from 2 weeks before to 3 weeks after the first fall frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.