When to plant cauliflower in Arizona

Plant out in Phoenix

Dec 25–Jan 8

Across Arizona the window opens between December 21 and May 21. Find your city below; the dates follow each town's own average last frost.

Start indoors, Phoenix: Oct 30–Nov 13
Plant out, Phoenix: Dec 25–Jan 8
Fall planting, Phoenix: Oct 2–Oct 16
Last frost, Phoenix: Jan 8

Start seeds indoors 8–10 weeks before the last frost; plant out up to 2 weeks before the last frost; sow again for fall 10–12 weeks before the first frost. When heads reach the size of an egg, tie the leaves over them to keep them white.

Cauliflower planting dates by city

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost

JanFebMarAprMayJunJulAugSepOctNovDec

PhoenixDec 25–Jan 8

TucsonJan 22–Feb 5

GilbertJan 18–Feb 1

ChandlerJan 30–Feb 13

GlendaleJan 6–Jan 20

ScottsdaleJan 13–Jan 27

TempeJan 30–Feb 13

GoodyearDec 31–Jan 14

San Tan ValleyJan 18–Feb 1

AvondaleDec 31–Jan 14

Queen CreekJan 18–Feb 1

MaricopaFeb 9–Feb 23

FlagstaffMay 21–Jun 4

Casas AdobesFeb 12–Feb 26

Casa GrandeJan 22–Feb 5

Lake Havasu CityDec 22–Jan 5

Prescott ValleyApr 16–Apr 30

Catalina FoothillsFeb 6–Feb 20

PrescottApr 16–Apr 30

Sierra VistaMar 22–Apr 5

Bullhead CityDec 21–Jan 4

Sun CityJan 6–Jan 20

KingmanMar 19–Apr 2

El MirageJan 6–Jan 20

Fortuna FoothillsDec 21–Jan 4

Drexel HeightsJan 22–Feb 5

FlorenceJan 16–Jan 30

Rio RicoApr 2–Apr 16

Questions

When should I plant cauliflower in Arizona?

In Phoenix, plant out from December 25 to January 8. Across Arizona the window opens between December 21 and May 21, depending on the local last frost.

How is this date worked out?

Start seeds indoors 8–10 weeks before the last frost; plant out up to 2 weeks before the last frost; sow again for fall 10–12 weeks before the first frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.

More for Arizona

Cauliflower in other states

Frost dates for every city in Arizona