When to plant asparagus in Oregon

Asparagus
Plant out in Portland
Jan 28–Feb 11

Across Oregon the window opens between January 14 and May 12. Find your city below; the dates follow each town's own average last frost.

Plant out, Portland
Jan 28–Feb 11
Last frost, Portland
Feb 25

Set out crowns 2–4 weeks before the last frost. Asparagus crowns produce for 15–20 years. Harvest lightly in the third spring.

Asparagus planting dates by city

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost
JanFebMarAprMayJunJulAugSepOctNovDec
PortlandJan 28–Feb 11
SalemMar 6–Mar 20
EugeneMar 14–Mar 28
GreshamFeb 16–Mar 2
HillsboroMar 19–Apr 2
BendMay 9–May 23
BeavertonMar 4–Mar 18
MedfordMar 11–Mar 25
CorvallisMar 20–Apr 3
SpringfieldMar 14–Mar 28
TigardMar 4–Mar 18
AlbanyMar 20–Apr 3
AlohaJan 14–Jan 28
Lake OswegoFeb 18–Mar 4
Grants PassMar 11–Mar 25
KeizerMar 6–Mar 20
RedmondMay 12–May 26
Oregon CityFeb 18–Mar 4
McMinnvilleMar 8–Mar 22
WoodburnFeb 16–Mar 2
BethanyJan 14–Jan 28
Happy ValleyFeb 18–Mar 4
TualatinMar 4–Mar 18
WilsonvilleFeb 18–Mar 4
Forest GroveMar 19–Apr 2
NewbergFeb 21–Mar 7
West LinnFeb 18–Mar 4
RoseburgFeb 23–Mar 9
HayesvilleMar 6–Mar 20
MilwaukieJan 28–Feb 11
All 34 cities
CityPlant outLast frost
PortlandJan 28 to Feb 11Feb 25
SalemMar 6 to Mar 20Apr 3
EugeneMar 14 to Mar 28Apr 11
GreshamFeb 16 to Mar 2Mar 16
HillsboroMar 19 to Apr 2Apr 16
BendMay 9 to May 23Jun 6
BeavertonMar 4 to Mar 18Apr 1
MedfordMar 11 to Mar 25Apr 8
CorvallisMar 20 to Apr 3Apr 17
SpringfieldMar 14 to Mar 28Apr 11
TigardMar 4 to Mar 18Apr 1
AlbanyMar 20 to Apr 3Apr 17
AlohaJan 14 to Jan 28Feb 11
Lake OswegoFeb 18 to Mar 4Mar 18
Grants PassMar 11 to Mar 25Apr 8
KeizerMar 6 to Mar 20Apr 3
RedmondMay 12 to May 26Jun 9
Oregon CityFeb 18 to Mar 4Mar 18
McMinnvilleMar 8 to Mar 22Apr 5
WoodburnFeb 16 to Mar 2Mar 16
BethanyJan 14 to Jan 28Feb 11
Happy ValleyFeb 18 to Mar 4Mar 18
TualatinMar 4 to Mar 18Apr 1
WilsonvilleFeb 18 to Mar 4Mar 18
Forest GroveMar 19 to Apr 2Apr 16
NewbergFeb 21 to Mar 7Mar 21
West LinnFeb 18 to Mar 4Mar 18
RoseburgFeb 23 to Mar 9Mar 23
HayesvilleMar 6 to Mar 20Apr 3
MilwaukieJan 28 to Feb 11Feb 25
Klamath FallsMay 12 to May 26Jun 9
AshlandApr 8 to Apr 22May 6
SherwoodFeb 21 to Mar 7Mar 21
LebanonFeb 14 to Feb 28Mar 14

Questions

When should I plant asparagus in Oregon?

In Portland, plant out from January 28 to February 11. Across Oregon the window opens between January 14 and May 12, depending on the local last frost.

How is this date worked out?

Set out crowns 2–4 weeks before the last frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.

More for Oregon

Asparagus in other states

Frost dates for every city in Oregon