When to Plant Rosemary in Zone 9
In USDA zone 9, start seeds indoors around December 21, transplant or plant outdoors March 15 to June 13, and expect your first harvest around June 13.
Rosemary planting calendar for USDA Zone 9
Start seeds indoors
Dec 21
Transplant outdoors
Mar 15
Projected first harvest
Jun 13
Most rosemary mature in about 90 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 rosemary
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 rosemary need about 90 days to mature.
Varieties to grow
2 varieties of rosemary in the HomeSown library. Tap any for its full grow guide.
Common problems with rosemary
What to watch for, with identification and treatment for each
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