FrostCal

When to Plant Cauliflower in Arizona

In a typical Arizona location, start seeds indoors Dec 26 – Jan 9, then transplant outdoors Jan 30 – Feb 6. Across the state, the outdoor planting window starts as early as Dec 21 in Bullhead City and as late as May 21 in Flagstaff. For a fall crop, plant around Sep 26 – Oct 3. 3 cities in Arizona are essentially frost-free and can plant on a year-round schedule.

Method Start indoors, then transplant
Days to maturity 55–85 days

Fussier than broccoli about temperature swings; start indoors 5-7 weeks before last frost, transplant 1-2 weeks before last frost.

Cauliflower Planting Dates by City

CityStart indoorsTransplantFall planting
PhoenixNov 17 – Dec 1Dec 22 – Dec 29Oct 25 – Nov 1
TucsonDec 2 – Dec 16Jan 6 – Jan 13Oct 8 – Oct 15
MesaDec 26 – Jan 9Jan 30 – Feb 6Sep 26 – Oct 3
ChandlerDec 26 – Jan 9Jan 30 – Feb 6Sep 26 – Oct 3
GilbertDec 26 – Jan 9Jan 30 – Feb 6Sep 26 – Oct 3
GlendaleDec 2 – Dec 16Jan 6 – Jan 13Oct 6 – Oct 13
ScottsdaleDec 26 – Jan 9Jan 30 – Feb 6Sep 26 – Oct 3
PeoriaDec 2 – Dec 16Jan 6 – Jan 13Oct 6 – Oct 13
TempeDec 26 – Jan 9Jan 30 – Feb 6Sep 26 – Oct 3
Tempe JunctionDec 26 – Jan 9Jan 30 – Feb 6Sep 26 – Oct 3
SurpriseDec 2 – Dec 16Jan 6 – Jan 13Oct 6 – Oct 13
YumaNov 20 – Dec 4Dec 25 – Jan 1Oct 19 – Oct 26
San Tan ValleyDec 14 – Dec 28Jan 18 – Jan 25Oct 2 – Oct 9
AvondaleNov 19 – Dec 3Dec 24 – Dec 31Oct 15 – Oct 22
GoodyearNov 19 – Dec 3Dec 24 – Dec 31Oct 15 – Oct 22
FlagstaffApr 16 – Apr 30May 21 – May 28Jul 20 – Jul 27
Casas AdobesJan 8 – Jan 22Feb 12 – Feb 19Sep 25 – Oct 2
Lake Havasu CityNov 17 – Dec 1Dec 22 – Dec 29Oct 20 – Oct 27
Casa GrandeDec 18 – Jan 1Jan 22 – Jan 29Sep 27 – Oct 4
BuckeyeNov 19 – Dec 3Dec 24 – Dec 31Oct 15 – Oct 22
Catalina FoothillsJan 2 – Jan 16Feb 6 – Feb 13Sep 18 – Sep 25
MaricopaJan 5 – Jan 19Feb 9 – Feb 16Sep 15 – Sep 22
Oro ValleyFeb 12 – Feb 26Mar 19 – Mar 26Sep 2 – Sep 9
Sierra VistaFeb 15 – Mar 1Mar 22 – Mar 29Aug 31 – Sep 7
Prescott ValleyMar 2 – Mar 16Apr 6 – Apr 13Aug 18 – Aug 25
PrescottMar 12 – Mar 26Apr 16 – Apr 23Aug 11 – Aug 18
MaranaJan 5 – Jan 19Feb 9 – Feb 16Sep 27 – Oct 4
Bullhead CityNov 16 – Nov 30Dec 21 – Dec 28Oct 14 – Oct 21
Apache JunctionDec 24 – Jan 7Jan 28 – Feb 4Oct 1 – Oct 8
Sun CityDec 2 – Dec 16Jan 6 – Jan 13Oct 6 – Oct 13

Showing the 30 most populous of 72 Arizona cities. Dates are estimates from each city's NOAA frost normals and university extension timing guidelines. See all Arizona cities.

Frequently Asked Questions

When should I plant cauliflower in Arizona?

In a typical Arizona location, start seeds indoors Dec 26 – Jan 9, then transplant outdoors Jan 30 – Feb 6. Across the state, the outdoor planting window starts as early as Dec 21 in Bullhead City and as late as May 21 in Flagstaff. For a fall crop, plant around Sep 26 – Oct 3. 3 cities in Arizona are essentially frost-free and can plant on a year-round schedule.

When is the last frost in Arizona?

The average last spring frost in Arizona ranges from January 4 in Bullhead City to June 4 in Flagstaff, based on NOAA 1991–2020 climate normals.

How long do cauliflower take to grow?

Cauliflower typically take 55–85 days from planting to harvest. Fussier than broccoli about temperature swings; start indoors 5-7 weeks before last frost, transplant 1-2 weeks before last frost.

Other Crops in Arizona

When to plant cauliflower in other states

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