When to plant spinach in Oregon
Oregon spans USDA zones 6b–9b, so the right time to plant spinach shifts by weeks across the state. The window to sow seed directly outdoors runs from about December 31 in Aloha to April 28 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 14 – February 11 |
| Eugene | 8b | April 11 | October 23 | February 28 – March 28 |
| Salem | 8b | April 3 | November 1 | February 20 – March 20 |
| Gresham | 9a | March 16 | November 20 | February 2 – March 2 |
| Hillsboro | 8b | April 16 | October 23 | March 5 – April 2 |
| Bend | 6b | June 6 | September 20 | April 25 – May 23 |
| Beaverton | 9a | April 1 | November 6 | February 18 – March 18 |
| Medford | 8b | April 8 | October 29 | February 25 – March 25 |
Spinach in Oregon: FAQ
When can I plant spinach in Oregon?
Across Oregon, the time to direct-sow spinach spans roughly December 31 in Aloha to April 28 in Redmond, each following that city's local frost dates.
Does the spinach planting date vary across Oregon?
Yes. Oregon publishes 69 cities with their own frost dates, so the right spinach 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 spinach take to grow in Oregon?
Spinach takes about 40–50 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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