When to Plant Collard Greens in Zone 4
In USDA zone 4, start seeds indoors around March 20, transplant or plant outdoors May 1 to July 15, and expect your first harvest around July 15. Zone 4 also has a fall planting window opening around July 12.
Collard Greens planting calendar for USDA Zone 4
spring planting
Start seeds indoors
Mar 20
Transplant outdoors
May 1
Projected first harvest
Jul 15
fall planting
Start seeds indoors
Jun 7
Transplant outdoors
Jul 12
Projected first harvest
Sep 25
spring planting
fall planting
Most collard greens mature in about 60 to 75 days depending on the variety. 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 collard greens
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 collard greens need about 60 to 75 days depending on the variety to mature.
Varieties to grow
2 varieties of collard greens in the HomeSown library. Tap any for its full grow guide.
Common problems with collard greens
What to watch for, with identification and treatment for each
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