FrostCal

When to Plant Brussels Sprouts in Arizona

In a typical Arizona location, start seeds indoors Dec 26 – Jan 9, then transplant outdoors Jan 23 – Feb 6. Across the state, the outdoor planting window starts as early as Dec 14 in Bullhead City and as late as May 14 in Flagstaff. 3 cities in Arizona are essentially frost-free and can plant on a year-round schedule.

Method Start indoors, then transplant
Days to maturity 90–110 days

Long-season crop best timed to mature after a light fall frost for sweetest flavor; start indoors 5-7 weeks before last frost.

Brussels Sprouts Planting Dates by City

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

In a typical Arizona location, start seeds indoors Dec 26 – Jan 9, then transplant outdoors Jan 23 – Feb 6. Across the state, the outdoor planting window starts as early as Dec 14 in Bullhead City and as late as May 14 in Flagstaff. 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 Brussels sprouts take to grow?

Brussels Sprouts typically take 90–110 days from planting to harvest. Long-season crop best timed to mature after a light fall frost for sweetest flavor; start indoors 5-7 weeks before last frost.

Other Crops in Arizona

When to plant Brussels sprouts in other states

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