When to plant Chinese cabbage in Arizona

In spring, May 10 – June 15 in Flagstaff.

In fall, from June 1 – July 15 in Flagstaff to Sept 1 – Dec 1 in Yuma.

USDA's earliest safe spring and latest safe fall planting dates, matched to each place's average frost dates.

Chinese cabbage planting dates by place in Arizona
PlaceSpringFall
Apache JunctionFall-plantedSept 1 – Nov 15Now
Avondale—Sept 1 – Dec 1Now
Buckeye—Sept 1 – Dec 1Now
Bullhead City—Sept 1 – Dec 1Now
Camp VerdeFall-plantedAug 1 – Sept 15
Casa GrandeFall-plantedSept 1 – Nov 15Now
ChandlerFall-plantedSept 1 – Nov 1Now
Chino ValleyFall-plantedJuly 15 – Aug 15
CoolidgeFall-plantedSept 1 – Nov 1Now
CottonwoodFall-plantedAug 15 – Oct 1
DouglasFall-plantedAug 15 – Oct 1
El MirageFall-plantedSept 1 – Nov 15Now
EloyFall-plantedSept 1 – Nov 1Now
FlagstaffMay 10 – June 15June 1 – July 15
FlorenceFall-plantedSept 1 – Nov 15Now
Fountain Hills—Sept 1 – Dec 1Now
GilbertFall-plantedSept 1 – Nov 15Now
GlendaleFall-plantedSept 1 – Nov 15Now
Goodyear—Sept 1 – Dec 1Now
KingmanFall-plantedAug 15 – Oct 1
Lake Havasu City—Sept 1 – Dec 1Now
MaranaFall-plantedAug 15 – Oct 1
MaricopaFall-plantedSept 1 – Oct 15
MesaFall-plantedSept 1 – Nov 15Now
NogalesFall-plantedSept 1 – Oct 15
Oro ValleyFall-plantedAug 15 – Oct 1
Paradise Valley—Sept 1 – Dec 1Now
PaysonFall-plantedJuly 15 – Aug 15
PeoriaFall-plantedSept 1 – Nov 15Now
Phoenix—Sept 1 – Dec 1Now
PrescottFall-plantedJuly 15 – Aug 15
Prescott ValleyFall-plantedJuly 15 – Aug 15
Queen CreekFall-plantedSept 1 – Nov 15Now
SaffordFall-plantedAug 15 – Oct 1
SahuaritaFall-plantedSept 1 – Nov 1Now
San Luis—Sept 1 – Dec 1Now
ScottsdaleFall-plantedSept 1 – Dec 1Now
Show LowFall-plantedJune 15 – Aug 1
Sierra VistaFall-plantedAug 15 – Oct 1
Somerton—Sept 1 – Dec 1Now
SurpriseFall-plantedSept 1 – Nov 15Now
TempeFall-plantedSept 1 – Nov 1Now
TucsonFall-plantedSept 1 – Nov 15Now
Yuma—Sept 1 – Dec 1Now

Planting dates: USDA Home and Garden Bulletin No. 9 (1967), tables 4 and 5. Frost dates: NOAA U.S. Climate Normals 1991–2020. “—” means the place's frost date is outside the table. The full USDA table for chinese cabbage.