When to plant luffa in Oregon
Oregon spans USDA zones 6b–9b, so the right time to plant luffa shifts by weeks across the state. The window to transplant seedlings outdoors runs from about February 25 in Aloha to June 23 in Redmond — below are local dates for 69 cities, each computed from its own frost dates.
| City | Zone | Last frost | First frost | Transplant out |
|---|---|---|---|---|
| Portland | 8b | February 25 | December 1 | March 11 – March 18 |
| Eugene | 8b | April 11 | October 23 | April 25 – May 2 |
| Salem | 8b | April 3 | November 1 | April 17 – April 24 |
| Gresham | 9a | March 16 | November 20 | March 30 – April 6 |
| Hillsboro | 8b | April 16 | October 23 | April 30 – May 7 |
| Bend | 6b | June 6 | September 20 | June 20 – June 27 |
| Beaverton | 9a | April 1 | November 6 | April 15 – April 22 |
| Medford | 8b | April 8 | October 29 | April 22 – April 29 |
Luffa in Oregon: FAQ
When can I plant luffa in Oregon?
Across Oregon, the time to transplant luffa spans roughly February 25 in Aloha to June 23 in Redmond, each following that city's local frost dates.
Does the luffa planting date vary across Oregon?
Yes. Oregon publishes 69 cities with their own frost dates, so the right luffa 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 luffa take to grow in Oregon?
Luffa takes about 150–200 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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