When to plant gai lan (chinese broccoli) in Arizona
Arizona spans USDA zones 6a–10a, so the right time to plant gai lan (chinese broccoli) shifts by weeks across the state. The window to sow seed directly outdoors runs from about December 14 in Bullhead City to May 14 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 18 – January 22 |
| Tucson | 9b | February 5 | December 9 | January 15 – February 19 |
| Mesa | 9b | February 1 | December 10 | January 11 – February 15 |
| Gilbert | 9b | February 1 | December 11 | January 11 – February 15 |
| Chandler | 9b | February 13 | December 5 | January 23 – February 27 |
| Glendale | 9b | January 20 | December 15 | December 30 – February 3 |
| Scottsdale | 10a | January 27 | December 21 | January 6 – February 10 |
| Peoria | 9b | February 5 | December 11 | January 15 – February 19 |
Gai Lan (Chinese Broccoli) in Arizona: FAQ
When can I plant gai lan (chinese broccoli) in Arizona?
Across Arizona, the time to direct-sow gai lan (chinese broccoli) spans roughly December 14 in Bullhead City to May 14 in Flagstaff, each following that city's local frost dates.
Does the gai lan (chinese broccoli) planting date vary across Arizona?
Yes. Arizona publishes 68 cities with their own frost dates, so the right gai lan (chinese broccoli) 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 gai lan (chinese broccoli) take to grow in Arizona?
Gai Lan (Chinese Broccoli) takes about 50–70 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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