When to Plant Thyme in Zone 4
In USDA zone 4, start seeds indoors around March 6, transplant or plant outdoors May 29 to August 12, and expect your first harvest around August 12.
Thyme planting calendar for USDA Zone 4
Start seeds indoors
Mar 6
Transplant outdoors
May 29
Projected first harvest
Aug 12
Thyme is ready to harvest in about 75 days. Dates use USDA zone 4a average frost dates. Set your ZIP in HomeSown for dates tuned to your exact location.
What zone 4 means for thyme
Average last spring frost
May 15
Average first fall frost
September 20
Those two dates are what set the schedule above. Zone 4 gives you roughly 128 frost-free days, and thyme need about 75 days to mature.
Varieties to grow
1 variety of thyme in the HomeSown library. Tap any for its full grow guide.
Common problems with thyme
What to watch for, with identification and treatment for each
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