When to plant Potatoes in Arizona
In spring, from Jan 1 – Feb 15 in Apache Junction to May 1 – June 15 in Flagstaff.
In fall, from May 1 – June 15 in Flagstaff to Aug 10 – Sept 15 in Nogales.
USDA's earliest safe spring and latest safe fall planting dates, matched to each place's average frost dates.
| Place | Spring | Fall |
|---|---|---|
| Apache Junction | Jan 1 – Feb 15 | Aug 1 – Sept 15 |
| Avondale | — | Aug 1 – Sept 15 |
| Buckeye | — | Aug 1 – Sept 15 |
| Bullhead City | — | Aug 1 – Sept 15 |
| Camp Verde | Mar 15 – Apr 10 | July 20 – Aug 10 |
| Casa Grande | Jan 1 – Feb 15 | Aug 1 – Sept 15 |
| Chandler | Jan 1 – Feb 15 | Aug 1 – Sept 15 |
| Chino Valley | Mar 20 – May 10 | June 15 – July 15 |
| Coolidge | Jan 15 – Mar 1 | Aug 1 – Sept 15 |
| Cottonwood | Feb 20 – Mar 20 | July 25 – Aug 20 |
| Douglas | Feb 10 – Mar 15 | July 25 – Aug 20 |
| El Mirage | Jan 1 – Feb 15 | Aug 1 – Sept 15 |
| Eloy | Jan 15 – Mar 1 | Aug 1 – Sept 15 |
| Flagstaff | May 1 – June 15 | May 1 – June 15 |
| Florence | Jan 1 – Feb 15 | Aug 1 – Sept 15 |
| Fountain Hills | — | Aug 1 – Sept 15 |
| Gilbert | Jan 1 – Feb 15 | Aug 1 – Sept 15 |
| Glendale | Jan 1 – Feb 15 | Aug 1 – Sept 15 |
| Goodyear | — | Aug 1 – Sept 15 |
| Kingman | Feb 20 – Mar 20 | July 25 – Aug 20 |
| Lake Havasu City | — | Aug 1 – Sept 15 |
| Marana | Feb 20 – Mar 20 | July 25 – Aug 20 |
| Maricopa | Jan 15 – Mar 1 | Aug 10 – Sept 15 |
| Mesa | Jan 1 – Feb 15 | Aug 1 – Sept 15 |
| Nogales | Feb 10 – Mar 15 | Aug 10 – Sept 15 |
| Oro Valley | Feb 20 – Mar 20 | July 25 – Aug 20 |
| Paradise Valley | — | Aug 1 – Sept 15 |
| Payson | Mar 20 – May 10 | June 15 – July 15 |
| Peoria | Jan 1 – Feb 15 | Aug 1 – Sept 15 |
| Phoenix | — | Aug 1 – Sept 15 |
| Prescott | Mar 20 – May 10 | June 15 – July 15 |
| Prescott Valley | Mar 20 – May 10 | June 15 – July 15 |
| Queen Creek | Jan 1 – Feb 15 | Aug 1 – Sept 15 |
| Safford | Feb 10 – Mar 15 | July 25 – Aug 20 |
| Sahuarita | Jan 15 – Mar 1 | Aug 1 – Sept 15 |
| San Luis | — | Aug 1 – Sept 15 |
| Scottsdale | Jan 1 – Feb 15 | Aug 1 – Sept 15 |
| Show Low | Mar 20 – May 10 | May 15 – June 15 |
| Sierra Vista | Mar 10 – Apr 1 | July 25 – Aug 20 |
| Somerton | — | Aug 1 – Sept 15 |
| Surprise | Jan 1 – Feb 15 | Aug 1 – Sept 15 |
| Tempe | Jan 1 – Feb 15 | Aug 1 – Sept 15 |
| Tucson | Jan 1 – Feb 15 | Aug 1 – Sept 15 |
| Yuma | — | Aug 1 – Sept 15 |
Planting dates: USDA Home and Garden Bulletin No. 9 (1967), tables 4 and 5. Frost dates: NOAA U.S. Climate Normals 1991–2020. “—” means outside the table. The full USDA table for potatoes.