When to plant cowpea (southern pea) in Arizona
Arizona spans USDA zones 6a–10a, so the right time to plant cowpea (southern pea) shifts by weeks across the state. The window to sow seed directly outdoors runs from about January 18 in Bullhead City to June 18 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 | January 22 – February 5 |
| Tucson | 9b | February 5 | December 9 | February 19 – March 5 |
| Mesa | 9b | February 1 | December 10 | February 15 – March 1 |
| Gilbert | 9b | February 1 | December 11 | February 15 – March 1 |
| Chandler | 9b | February 13 | December 5 | February 27 – March 13 |
| Glendale | 9b | January 20 | December 15 | February 3 – February 17 |
| Scottsdale | 10a | January 27 | December 21 | February 10 – February 24 |
| Peoria | 9b | February 5 | December 11 | February 19 – March 5 |
Cowpea (Southern Pea) in Arizona: FAQ
When can I plant cowpea (southern pea) in Arizona?
Across Arizona, the time to direct-sow cowpea (southern pea) spans roughly January 18 in Bullhead City to June 18 in Flagstaff, each following that city's local frost dates.
Does the cowpea (southern pea) planting date vary across Arizona?
Yes. Arizona publishes 68 cities with their own frost dates, so the right cowpea (southern pea) 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 cowpea (southern pea) take to grow in Arizona?
Cowpea (Southern Pea) takes about 60–90 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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