When to Plant Rosemary in Zone 8
In USDA zone 8a, start seeds indoors around January 21, transplant or plant outdoors April 15 to July 14, and expect your first harvest around July 14. (8a shown here — see 8a and 8b dates separately below.)
Rosemary planting calendar for USDA Zone 8a
Average last spring frost
April 1
Average first fall frost
November 10
Start seeds indoors
Jan 21
Transplant outdoors
Apr 15
Projected first harvest
Jul 14
Most rosemary mature in about 90 days, needing roughly 223 frost-free days in zone 8a.
Rosemary planting calendar for USDA Zone 8b
Average last spring frost
March 20
Average first fall frost
November 20
Start seeds indoors
Jan 9
Transplant outdoors
Apr 3
Projected first harvest
Jul 2
Most rosemary mature in about 90 days, needing roughly 245 frost-free days in zone 8b.
Not sure whether you're in 8a or 8b? Set your ZIP in HomeSown for dates tuned to your exact location.
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
🌱 Grow rosemary with a calendar built for your exact yard
HomeSown turns your ZIP code into a personalized planting calendar, watering reminders, and pest help. Free to start.
Start your free garden →