When to plant chervil in California
California spans USDA zones 6b–11a, so the right time to plant chervil shifts by weeks across the state. The window to sow seed directly outdoors runs from about December 1 in San Mateo to May 12 in Truckee — below are local dates for 497 cities, each computed from its own frost dates.
| City | Zone | Last frost | First frost | Direct sow |
|---|---|---|---|---|
| Los Angeles | 10b | January 2 | December 26 | December 5 – January 2 |
| San Diego | 10b | January 6 | December 21 | December 9 – January 6 |
| San Jose | 9b | January 2 | December 25 | December 5 – January 2 |
| San Francisco | 10a | December 30 | December 25 | December 2 – December 30 |
| Fresno | 9b | January 14 | December 14 | December 17 – January 14 |
| Sacramento | 9b | January 12 | December 16 | December 15 – January 12 |
| Long Beach | 10b | January 9 | January 5 | December 12 – January 9 |
| Oakland | 10a | January 7 | December 23 | December 10 – January 7 |
Chervil in California: FAQ
When can I plant chervil in California?
Across California, the time to direct-sow chervil spans roughly December 1 in San Mateo to May 12 in Truckee, each following that city's local frost dates.
Does the chervil planting date vary across California?
Yes. California publishes 497 cities with their own frost dates, so the right chervil 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 chervil take to grow in California?
Chervil takes about 55–70 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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