When to plant potato in Arizona
Arizona spans USDA zones 6a–10a, so the right time to plant potato shifts by weeks across the state. The window to sow seed directly outdoors runs from about December 7 in Bullhead City to May 7 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 11 – December 25 |
| Tucson | 9b | February 5 | December 9 | January 8 – January 22 |
| Mesa | 9b | February 1 | December 10 | January 4 – January 18 |
| Gilbert | 9b | February 1 | December 11 | January 4 – January 18 |
| Chandler | 9b | February 13 | December 5 | January 16 – January 30 |
| Glendale | 9b | January 20 | December 15 | December 23 – January 6 |
| Scottsdale | 10a | January 27 | December 21 | December 30 – January 13 |
| Peoria | 9b | February 5 | December 11 | January 8 – January 22 |
Potato in Arizona: FAQ
When can I plant potato in Arizona?
Across Arizona, the time to direct-sow potato spans roughly December 7 in Bullhead City to May 7 in Flagstaff, each following that city's local frost dates.
Does the potato planting date vary across Arizona?
Yes. Arizona publishes 68 cities with their own frost dates, so the right potato 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 potato take to grow in Arizona?
Potato takes about 70–120 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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