When to plant lemongrass in Washington
Washington spans USDA zones 6b–9a, so the right time to plant lemongrass shifts by weeks across the state. The window to transplant seedlings outdoors runs from about March 15 in Port Townsend to June 13 in Cheney — below are local dates for 132 cities, each computed from its own frost dates.
| City | Zone | Last frost | First frost | Transplant out |
|---|---|---|---|---|
| Seattle | 9a | March 8 | November 23 | March 22 – March 29 |
| Spokane | 7a | April 26 | October 15 | May 10 – May 17 |
| Tacoma | 8b | March 8 | November 14 | March 22 – March 29 |
| Vancouver | 8b | March 29 | November 9 | April 12 – April 19 |
| Bellevue | 9a | March 8 | November 23 | March 22 – March 29 |
| Kent | 8b | March 20 | November 10 | April 3 – April 10 |
| Everett | 8b | March 24 | November 2 | April 7 – April 14 |
| Spokane Valley | 7a | April 26 | October 15 | May 10 – May 17 |
Lemongrass in Washington: FAQ
When can I plant lemongrass in Washington?
Across Washington, the time to transplant lemongrass spans roughly March 15 in Port Townsend to June 13 in Cheney, each following that city's local frost dates.
Does the lemongrass planting date vary across Washington?
Yes. Washington publishes 132 cities with their own frost dates, so the right lemongrass 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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