When to plant orach in Oregon
Oregon spans USDA zones 6b–9b, so the right time to plant orach shifts by weeks across the state. The window to sow seed directly outdoors runs from about January 28 in Aloha to May 26 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 | February 11 – March 11 |
| Eugene | 8b | April 11 | October 23 | March 28 – April 25 |
| Salem | 8b | April 3 | November 1 | March 20 – April 17 |
| Gresham | 9a | March 16 | November 20 | March 2 – March 30 |
| Hillsboro | 8b | April 16 | October 23 | April 2 – April 30 |
| Bend | 6b | June 6 | September 20 | May 23 – June 20 |
| Beaverton | 9a | April 1 | November 6 | March 18 – April 15 |
| Medford | 8b | April 8 | October 29 | March 25 – April 22 |
Orach in Oregon: FAQ
When can I plant orach in Oregon?
Across Oregon, the time to direct-sow orach spans roughly January 28 in Aloha to May 26 in Redmond, each following that city's local frost dates.
Does the orach planting date vary across Oregon?
Yes. Oregon publishes 69 cities with their own frost dates, so the right orach planting window shifts by weeks between the warmest and coldest parts of the state — use your city's page for the exact dates.
How long does orach take to grow in Oregon?
Orach takes about 40–60 days to reach harvest once planted — check that this fits inside your city's frost-free season on its place page.
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