When to plant broccoli in Arizona

Plant out in Phoenix

Dec 11–Dec 25

Across Arizona the window opens between December 7 and May 7. 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 11–Dec 25
Fall planting, Phoenix: Oct 2–Oct 16
Last frost, Phoenix: Jan 8

Start seeds indoors 8–10 weeks before the last frost; plant out 2–4 weeks before the last frost; sow again for fall 10–12 weeks before the first frost. Broccoli grown for a fall harvest often tastes sweeter than spring broccoli. Light frost improves it.

Broccoli planting dates by city

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost

JanFebMarAprMayJunJulAugSepOctNovDec

PhoenixDec 11–Dec 25

TucsonJan 8–Jan 22

GilbertJan 4–Jan 18

ChandlerJan 16–Jan 30

GlendaleDec 23–Jan 6

ScottsdaleDec 30–Jan 13

TempeJan 16–Jan 30

GoodyearDec 17–Dec 31

San Tan ValleyJan 4–Jan 18

AvondaleDec 17–Dec 31

Queen CreekJan 4–Jan 18

MaricopaJan 26–Feb 9

FlagstaffMay 7–May 21

Casas AdobesJan 29–Feb 12

Casa GrandeJan 8–Jan 22

Lake Havasu CityDec 8–Dec 22

Prescott ValleyApr 2–Apr 16

Catalina FoothillsJan 23–Feb 6

PrescottApr 2–Apr 16

Sierra VistaMar 8–Mar 22

Bullhead CityDec 7–Dec 21

Sun CityDec 23–Jan 6

KingmanMar 5–Mar 19

El MirageDec 23–Jan 6

Fortuna FoothillsDec 7–Dec 21

Drexel HeightsJan 8–Jan 22

FlorenceJan 2–Jan 16

Rio RicoMar 19–Apr 2

Questions

When should I plant broccoli in Arizona?

In Phoenix, plant out from December 11 to December 25. Across Arizona the window opens between December 7 and May 7, depending on the local last frost.

How is this date worked out?

Start seeds indoors 8–10 weeks before the last frost; plant out 2–4 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

Broccoli in other states

Frost dates for every city in Arizona