When to plant Celery in Arizona

In spring, from Jan 1 – Feb 1 in El Mirage to May 20 – June 1 in Flagstaff.

In fall, from June 1 – Aug 1 in Chino Valley to Oct 1 – Dec 31 in Yuma.

Dates are for setting out plants. USDA's earliest safe spring and latest safe fall planting dates, matched to each place's average frost dates.

Celery and celeriac planting dates by place in Arizona
PlaceSpringFall
Apache JunctionJan 10 – Feb 10Sept 1 – Dec 31Now
Avondale—Oct 1 – Dec 31Now
Buckeye—Oct 1 – Dec 31Now
Bullhead City—Oct 1 – Dec 31Now
Camp VerdeApr 10 – May 1June 15 – Aug 15
Casa GrandeJan 10 – Feb 10Sept 1 – Dec 31Now
ChandlerJan 10 – Feb 10Aug 1 – Dec 1Now
Chino ValleyApr 15 – May 1June 1 – Aug 1
CoolidgeJan 20 – Feb 20Aug 1 – Dec 1Now
CottonwoodMar 15 – Apr 15July 1 – Aug 15
DouglasMar 1 – Apr 1July 1 – Aug 15
El MirageJan 1 – Feb 1Sept 1 – Dec 31Now
EloyFeb 1 – Mar 1Aug 1 – Dec 1Now
FlagstaffMay 20 – June 1June 1 – July 5
FlorenceJan 1 – Feb 1Sept 1 – Dec 31Now
Fountain Hills—Oct 1 – Dec 31Now
GilbertJan 1 – Feb 1Sept 1 – Dec 31Now
GlendaleJan 1 – Feb 1Sept 1 – Dec 31Now
Goodyear—Oct 1 – Dec 31Now
KingmanMar 15 – Apr 15July 1 – Aug 15
Lake Havasu City—Oct 1 – Dec 31Now
MaranaMar 15 – Apr 15July 1 – Aug 15
MaricopaJan 20 – Feb 20July 15 – Sept 1
MesaJan 1 – Feb 1Sept 1 – Dec 31Now
NogalesMar 1 – Apr 1July 15 – Sept 1
Oro ValleyMar 15 – Apr 15July 1 – Aug 15
Paradise Valley—Oct 1 – Dec 31Now
PaysonApr 15 – May 1June 1 – Aug 1
PeoriaJan 10 – Feb 10Sept 1 – Dec 31Now
Phoenix—Oct 1 – Dec 31Now
PrescottApr 15 – May 1June 1 – Aug 1
Prescott ValleyApr 15 – May 1June 1 – Aug 1
Queen CreekJan 1 – Feb 1Sept 1 – Dec 31Now
SaffordMar 1 – Apr 1July 1 – Aug 15
SahuaritaFeb 1 – Mar 1Aug 1 – Dec 1Now
San Luis—Oct 1 – Dec 31Now
ScottsdaleJan 1 – Feb 1Oct 1 – Dec 31Now
Show LowApr 15 – May 1June 1 – July 15
Sierra VistaApr 1 – 20July 1 – Aug 15
Somerton—Oct 1 – Dec 31Now
SurpriseJan 10 – Feb 10Sept 1 – Dec 31Now
TempeJan 10 – Feb 10Aug 1 – Dec 1Now
TucsonJan 10 – Feb 10Sept 1 – Dec 31Now
Yuma—Oct 1 – Dec 31Now

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 celery and celeriac.