When to Plant Cauliflower in Zone 10
In USDA zone 10a, start seeds indoors around December 19, transplant or plant outdoors January 16 to April 11, and expect your first harvest around April 11. Zone 10 also has a fall planting window opening around September 23. (10a shown here — see 10a and 10b dates separately below.)
Cauliflower planting calendar for USDA Zone 10a
Average last spring frost
January 30
Average first fall frost
December 30
spring planting
Start seeds indoors
Dec 19
Transplant outdoors
Jan 16
Projected first harvest
Apr 11
fall planting
Start seeds indoors
Aug 19
Transplant outdoors
Sep 23
Projected first harvest
Dec 17
spring planting
fall planting
Most cauliflower mature in about 70 to 200 days depending on the variety, needing roughly 334 frost-free days in zone 10a.
Cauliflower planting calendar for USDA Zone 10b
Average last spring frost
January 30
Average first fall frost
December 30
spring planting
Start seeds indoors
Dec 19
Transplant outdoors
Jan 16
Projected first harvest
Apr 11
fall planting
Start seeds indoors
Aug 19
Transplant outdoors
Sep 23
Projected first harvest
Dec 17
spring planting
fall planting
Most cauliflower mature in about 70 to 200 days depending on the variety, needing roughly 334 frost-free days in zone 10b.
Not sure whether you're in 10a or 10b? Set your ZIP in HomeSown for dates tuned to your exact location.
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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