When to Plant Oregano in Zone 4
In USDA zone 4, start seeds indoors around March 20, transplant or plant outdoors May 29 to August 22, and expect your first harvest around August 22.
Oregano planting calendar for USDA Zone 4
Start seeds indoors
Mar 20
Transplant outdoors
May 29
Projected first harvest
Aug 22
Oregano is ready to harvest in about 85 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 oregano
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 oregano need about 85 days to mature.
Varieties to grow
1 variety of oregano in the HomeSown library. Tap any for its full grow guide.
Common problems with oregano
What to watch for, with identification and treatment for each
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