When to plant popcorn in Oregon
Oregon spans USDA zones 6b–9b, so the right time to plant popcorn shifts by weeks across the state. The window to sow seed directly outdoors runs from about February 11 in Aloha to June 9 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 25 – March 11 |
| Eugene | 8b | April 11 | October 23 | April 11 – April 25 |
| Salem | 8b | April 3 | November 1 | April 3 – April 17 |
| Gresham | 9a | March 16 | November 20 | March 16 – March 30 |
| Hillsboro | 8b | April 16 | October 23 | April 16 – April 30 |
| Bend | 6b | June 6 | September 20 | June 6 – June 20 |
| Beaverton | 9a | April 1 | November 6 | April 1 – April 15 |
| Medford | 8b | April 8 | October 29 | April 8 – April 22 |
Popcorn in Oregon: FAQ
When can I plant popcorn in Oregon?
Across Oregon, the time to direct-sow popcorn spans roughly February 11 in Aloha to June 9 in Redmond, each following that city's local frost dates.
Does the popcorn planting date vary across Oregon?
Yes. Oregon publishes 69 cities with their own frost dates, so the right popcorn 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 popcorn take to grow in Oregon?
Popcorn takes about 90–120 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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