When to plant dill in Arizona
Arizona spans USDA zones 6a–10a, so the right time to plant dill shifts by weeks across the state. The window to sow seed directly outdoors runs from about December 21 in Bullhead City to May 21 in Flagstaff — below are local dates for 68 cities, each computed from its own frost dates.
| City | Zone | Last frost | First frost | Direct sow |
|---|---|---|---|---|
| Phoenix | 9b | January 8 | December 25 | December 25 – February 5 |
| Tucson | 9b | February 5 | December 9 | January 22 – March 5 |
| Mesa | 9b | February 1 | December 10 | January 18 – March 1 |
| Gilbert | 9b | February 1 | December 11 | January 18 – March 1 |
| Chandler | 9b | February 13 | December 5 | January 30 – March 13 |
| Glendale | 9b | January 20 | December 15 | January 6 – February 17 |
| Scottsdale | 10a | January 27 | December 21 | January 13 – February 24 |
| Peoria | 9b | February 5 | December 11 | January 22 – March 5 |
Dill in Arizona: FAQ
When can I plant dill in Arizona?
Across Arizona, the time to direct-sow dill spans roughly December 21 in Bullhead City to May 21 in Flagstaff, each following that city's local frost dates.
Does the dill planting date vary across Arizona?
Yes. Arizona publishes 68 cities with their own frost dates, so the right dill 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 dill take to grow in Arizona?
Dill takes about 40–60 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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