When to Plant Cauliflower in Zone 9
In USDA zone 9, start seeds indoors around January 18, transplant or plant outdoors February 15 to May 11, and expect your first harvest around May 11. Zone 9 also has a fall planting window opening around August 25.
Cauliflower planting calendar for USDA Zone 9
spring planting
Start seeds indoors
Jan 18
Transplant outdoors
Feb 15
Projected first harvest
May 11
fall planting
Start seeds indoors
Jul 21
Transplant outdoors
Aug 25
Projected first harvest
Nov 18
spring planting
fall planting
Most cauliflower mature in about 70 to 200 days depending on the variety. 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 cauliflower
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 cauliflower need about 70 to 200 days depending on the variety to mature.
Varieties to grow
4 varieties of cauliflower in the HomeSown library. Tap any for its full grow guide.
Common problems with cauliflower
What to watch for, with identification and treatment for each
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