FrostCal

When to Plant Broccoli in Oregon

In a typical Oregon location, start seeds indoors Feb 13 – Feb 27, then transplant outdoors Mar 13 – Mar 20. Across the state, the outdoor planting window starts as early as Jan 21 in Beaverton and as late as May 19 in Altamont. For a fall crop, plant around Sep 4 – Sep 11.

Method Start indoors, then transplant
Days to maturity 55–80 days

Start indoors 5-7 weeks before last frost; transplant out 2-3 weeks before last frost (hardens off to light frost).

Broccoli Planting Dates by City

CityStart indoorsTransplantFall planting
PortlandJan 7 – Jan 21Feb 4 – Feb 11Sep 29 – Oct 6
EugeneFeb 21 – Mar 7Mar 21 – Mar 28Aug 21 – Aug 28
SalemFeb 13 – Feb 27Mar 13 – Mar 20Aug 30 – Sep 6
GreshamJan 26 – Feb 9Feb 23 – Mar 2Sep 18 – Sep 25
HillsboroFeb 26 – Mar 12Mar 26 – Apr 2Aug 21 – Aug 28
BeavertonDec 24 – Jan 7Jan 21 – Jan 28Oct 3 – Oct 10
BendApr 18 – May 2May 16 – May 23Jul 19 – Jul 26
MedfordFeb 18 – Mar 4Mar 18 – Mar 25Aug 27 – Sep 3
SpringfieldFeb 21 – Mar 7Mar 21 – Mar 28Aug 21 – Aug 28
CorvallisFeb 27 – Mar 13Mar 27 – Apr 3Aug 26 – Sep 2
AlbanyFeb 27 – Mar 13Mar 27 – Apr 3Aug 26 – Sep 2
TigardFeb 11 – Feb 25Mar 11 – Mar 18Sep 4 – Sep 11
AlohaDec 24 – Jan 7Jan 21 – Jan 28Oct 3 – Oct 10
Lake OswegoJan 28 – Feb 11Feb 25 – Mar 4Sep 16 – Sep 23
KeizerFeb 13 – Feb 27Mar 13 – Mar 20Aug 30 – Sep 6
Grants PassFeb 18 – Mar 4Mar 18 – Mar 25Aug 26 – Sep 2
Oregon CityJan 28 – Feb 11Feb 25 – Mar 4Sep 16 – Sep 23
McMinnvilleFeb 15 – Mar 1Mar 15 – Mar 22Sep 5 – Sep 12
RedmondApr 21 – May 5May 19 – May 26Jul 13 – Jul 20
TualatinFeb 11 – Feb 25Mar 11 – Mar 18Sep 4 – Sep 11
West LinnJan 28 – Feb 11Feb 25 – Mar 4Sep 16 – Sep 23
WoodburnJan 26 – Feb 9Feb 23 – Mar 2Sep 12 – Sep 19
Forest GroveFeb 26 – Mar 12Mar 26 – Apr 2Aug 24 – Aug 31
NewbergJan 31 – Feb 14Feb 28 – Mar 7Sep 20 – Sep 27
WilsonvilleJan 28 – Feb 11Feb 25 – Mar 4Sep 11 – Sep 18
RoseburgFeb 2 – Feb 16Mar 2 – Mar 9Sep 16 – Sep 23
Klamath FallsApr 21 – May 5May 19 – May 26Jul 17 – Jul 24
AshlandMar 18 – Apr 1Apr 15 – Apr 22Aug 6 – Aug 13
MilwaukieJan 7 – Jan 21Feb 4 – Feb 11Sep 29 – Oct 6
BethanyFeb 26 – Mar 12Mar 26 – Apr 2Aug 21 – Aug 28

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 broccoli in Oregon?

In a typical Oregon location, start seeds indoors Feb 13 – Feb 27, then transplant outdoors Mar 13 – Mar 20. Across the state, the outdoor planting window starts as early as Jan 21 in Beaverton and as late as May 19 in Altamont. For a fall crop, plant around Sep 4 – Sep 11.

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 broccoli take to grow?

Broccoli typically take 55–80 days from planting to harvest. Start indoors 5-7 weeks before last frost; transplant out 2-3 weeks before last frost (hardens off to light frost).

Other Crops in Oregon

When to plant broccoli in other states

Related Guides