When to plant leeks in Arizona

Leeks
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 16–Oct 30
Plant out, Phoenix
Dec 25–Jan 8
Last frost, Phoenix
Jan 8

Start seeds indoors 10–12 weeks before the last frost; plant out up to 2 weeks before the last frost. Plant leeks deep in a trench and fill it in as they grow to get long white stems.

Leeks 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 leeks 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 10–12 weeks before the last frost; plant out up to 2 weeks before the last frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.

More for Arizona

Leeks in other states

Frost dates for every city in Arizona