When to plant sorrel in Oregon
Oregon spans USDA zones 6b–9b, so the right time to plant sorrel shifts by weeks across the state. The window to sow seed directly outdoors runs from about January 14 in Aloha to May 12 in Redmond — below are local dates for 69 cities, each computed from its own frost dates.
| City | Zone | Last frost | First frost | Direct sow |
|---|---|---|---|---|
| Portland | 8b | February 25 | December 1 | January 28 – March 11 |
| Eugene | 8b | April 11 | October 23 | March 14 – April 25 |
| Salem | 8b | April 3 | November 1 | March 6 – April 17 |
| Gresham | 9a | March 16 | November 20 | February 16 – March 30 |
| Hillsboro | 8b | April 16 | October 23 | March 19 – April 30 |
| Bend | 6b | June 6 | September 20 | May 9 – June 20 |
| Beaverton | 9a | April 1 | November 6 | March 4 – April 15 |
| Medford | 8b | April 8 | October 29 | March 11 – April 22 |
Sorrel in Oregon: FAQ
When can I plant sorrel in Oregon?
Across Oregon, the time to direct-sow sorrel spans roughly January 14 in Aloha to May 12 in Redmond, each following that city's local frost dates.
Does the sorrel planting date vary across Oregon?
Yes. Oregon publishes 69 cities with their own frost dates, so the right sorrel planting window shifts by weeks between the warmest and coldest parts of the state — use your city's page for the exact dates.
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