FrostCal

When to Plant Oregano in Oregon

In a typical Oregon location, start seeds indoors Feb 6 – Feb 20, then transplant outdoors Apr 3 – Apr 10. Across the state, the outdoor planting window starts as early as Feb 11 in Beaverton and as late as Jun 9 in Altamont.

Method Start indoors, then transplant
Days to maturity 80–90 days

Perennial herb; start indoors 6-8 weeks before last frost, transplant around/just after last frost date.

Oregano Planting Dates by City

CityStart indoorsTransplant
PortlandDec 31 – Jan 14Feb 25 – Mar 4
EugeneFeb 14 – Feb 28Apr 11 – Apr 18
SalemFeb 6 – Feb 20Apr 3 – Apr 10
GreshamJan 19 – Feb 2Mar 16 – Mar 23
HillsboroFeb 19 – Mar 5Apr 16 – Apr 23
BeavertonDec 17 – Dec 31Feb 11 – Feb 18
BendApr 11 – Apr 25Jun 6 – Jun 13
MedfordFeb 11 – Feb 25Apr 8 – Apr 15
SpringfieldFeb 14 – Feb 28Apr 11 – Apr 18
CorvallisFeb 20 – Mar 6Apr 17 – Apr 24
AlbanyFeb 20 – Mar 6Apr 17 – Apr 24
TigardFeb 4 – Feb 18Apr 1 – Apr 8
AlohaDec 17 – Dec 31Feb 11 – Feb 18
Lake OswegoJan 21 – Feb 4Mar 18 – Mar 25
KeizerFeb 6 – Feb 20Apr 3 – Apr 10
Grants PassFeb 11 – Feb 25Apr 8 – Apr 15
Oregon CityJan 21 – Feb 4Mar 18 – Mar 25
McMinnvilleFeb 8 – Feb 22Apr 5 – Apr 12
RedmondApr 14 – Apr 28Jun 9 – Jun 16
TualatinFeb 4 – Feb 18Apr 1 – Apr 8
West LinnJan 21 – Feb 4Mar 18 – Mar 25
WoodburnJan 19 – Feb 2Mar 16 – Mar 23
Forest GroveFeb 19 – Mar 5Apr 16 – Apr 23
NewbergJan 24 – Feb 7Mar 21 – Mar 28
WilsonvilleJan 21 – Feb 4Mar 18 – Mar 25
RoseburgJan 26 – Feb 9Mar 23 – Mar 30
Klamath FallsApr 14 – Apr 28Jun 9 – Jun 16
AshlandMar 11 – Mar 25May 6 – May 13
MilwaukieDec 31 – Jan 14Feb 25 – Mar 4
BethanyFeb 19 – Mar 5Apr 16 – Apr 23

Showing the 30 most populous of 68 Oregon cities. Dates are estimates from each city's NOAA frost normals and university extension timing guidelines. See all Oregon cities.

Frequently Asked Questions

When should I plant oregano in Oregon?

In a typical Oregon location, start seeds indoors Feb 6 – Feb 20, then transplant outdoors Apr 3 – Apr 10. Across the state, the outdoor planting window starts as early as Feb 11 in Beaverton and as late as Jun 9 in Altamont.

When is the last frost in Oregon?

The average last spring frost in Oregon ranges from February 11 in Beaverton to June 9 in Altamont, based on NOAA 1991–2020 climate normals.

How long do oregano take to grow?

Oregano typically take 80–90 days from planting to harvest. Perennial herb; start indoors 6-8 weeks before last frost, transplant around/just after last frost date.

Other Crops in Oregon

When to plant oregano in other states

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