When to Plant St. John's Wort in Zone 10
In USDA zone 10a, start seeds indoors around December 5, transplant or plant outdoors February 13 to June 13, and expect your first harvest around June 13. (10a shown here — see 10a and 10b dates separately below.)
St. John's Wort planting calendar for USDA Zone 10a
Average last spring frost
January 30
Average first fall frost
December 30
Start seeds indoors
Dec 5
Transplant outdoors
Feb 13
Projected first harvest
Jun 13
St. John's Wort is ready to harvest in about 120 days, needing roughly 334 frost-free days in zone 10a.
St. John's Wort planting calendar for USDA Zone 10b
Average last spring frost
January 30
Average first fall frost
December 30
Start seeds indoors
Dec 5
Transplant outdoors
Feb 13
Projected first harvest
Jun 13
St. John's Wort is ready to harvest in about 120 days, 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
1 variety of st. john's wort in the HomeSown library. Tap any for its full grow guide.
Common problems with st. john's wort
What to watch for, with identification and treatment for each
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