When to plant mizuna in Arizona
Arizona spans USDA zones 6a–10a, so the right time to plant mizuna 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 – January 22 |
| Tucson | 9b | February 5 | December 9 | January 8 – February 19 |
| Mesa | 9b | February 1 | December 10 | January 4 – February 15 |
| Gilbert | 9b | February 1 | December 11 | January 4 – February 15 |
| Chandler | 9b | February 13 | December 5 | January 16 – February 27 |
| Glendale | 9b | January 20 | December 15 | December 23 – February 3 |
| Scottsdale | 10a | January 27 | December 21 | December 30 – February 10 |
| Peoria | 9b | February 5 | December 11 | January 8 – February 19 |
Mizuna in Arizona: FAQ
When can I plant mizuna in Arizona?
Across Arizona, the time to direct-sow mizuna spans roughly December 7 in Bullhead City to May 7 in Flagstaff, each following that city's local frost dates.
Does the mizuna planting date vary across Arizona?
Yes. Arizona publishes 68 cities with their own frost dates, so the right mizuna 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 mizuna take to grow in Arizona?
Mizuna takes about 40–50 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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