When to Plant Celery in Zone 9
In USDA zone 9a, start seeds indoors around January 4, transplant or plant outdoors February 15 to June 5, and expect your first harvest around June 5. (9a shown here — see 9a and 9b dates separately below.)
Celery planting calendar for USDA Zone 9a
Average last spring frost
March 1
Average first fall frost
December 1
Start seeds indoors
Jan 4
Transplant outdoors
Feb 15
Projected first harvest
Jun 5
Most celery mature in about 100 to 110 days depending on the variety, needing roughly 275 frost-free days in zone 9a.
Celery planting calendar for USDA Zone 9b
Average last spring frost
February 15
Average first fall frost
December 15
Start seeds indoors
Dec 21
Transplant outdoors
Feb 1
Projected first harvest
May 22
Most celery mature in about 100 to 110 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
2 varieties of celery in the HomeSown library. Tap any for its full grow guide.
Common problems with celery
What to watch for, with identification and treatment for each
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