When to Plant Brussels Sprouts in Zone 9
In USDA zone 9, start seeds indoors around January 11, transplant or plant outdoors February 15 to May 26, and expect your first harvest around May 26. Zone 9 also has a fall planting window opening around September 1.
Brussels Sprouts planting calendar for USDA Zone 9
spring planting
Start seeds indoors
Jan 11
Transplant outdoors
Feb 15
Projected first harvest
May 26
fall planting
Start seeds indoors
Jul 28
Transplant outdoors
Sep 1
Projected first harvest
Dec 10
spring planting
fall planting
Brussels Sprouts is ready to harvest in about 100 days. Dates use USDA zone 9a average frost dates. Set your ZIP in HomeSown for dates tuned to your exact location.
What zone 9 means for brussels sprouts
Average last spring frost
March 1
Average first fall frost
December 1
Those two dates are what set the schedule above. Zone 9 gives you roughly 275 frost-free days, and brussels sprouts need about 100 days to mature.
Varieties to grow
1 variety of brussels sprouts in the HomeSown library. Tap any for its full grow guide.
Common problems with brussels sprouts
What to watch for, with identification and treatment for each
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