When to Plant Broccoli in Zone 9
In USDA zone 9a, start seeds indoors around December 28, transplant or plant outdoors February 8 to April 14, and expect your first harvest around April 14. Zone 9 also has a fall planting window opening around September 15. (9a shown here — see 9a and 9b dates separately below.)
Broccoli planting calendar for USDA Zone 9a
Average last spring frost
March 1
Average first fall frost
December 1
spring planting
Start seeds indoors
Dec 28
Transplant outdoors
Feb 8
Projected first harvest
Apr 14
fall planting
Start seeds indoors
Aug 11
Transplant outdoors
Sep 15
Projected first harvest
Nov 19
spring planting
fall planting
Most broccoli mature in about 50 to 200 days depending on the variety, needing roughly 275 frost-free days in zone 9a.
Broccoli planting calendar for USDA Zone 9b
Average last spring frost
February 15
Average first fall frost
December 15
spring planting
Start seeds indoors
Dec 14
Transplant outdoors
Jan 25
Projected first harvest
Mar 31
fall planting
Start seeds indoors
Aug 25
Transplant outdoors
Sep 29
Projected first harvest
Dec 3
spring planting
fall planting
Most broccoli mature in about 50 to 200 days depending on the variety, needing roughly 303 frost-free days in zone 9b.
Not sure whether you're in 9a or 9b? Set your ZIP in HomeSown for dates tuned to your exact location.
Varieties to grow
4 varieties of broccoli in the HomeSown library. Tap any for its full grow guide.
Common problems with broccoli
What to watch for, with identification and treatment for each
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