When to Plant Kohlrabi in Zone 4
In USDA zone 4, start seeds indoors around March 27, transplant or plant outdoors May 1 to June 25, and expect your first harvest around June 25. Zone 4 also has a fall planting window opening around July 12.
Kohlrabi planting calendar for USDA Zone 4
spring planting
Start seeds indoors
Mar 27
Transplant outdoors
May 1
Projected first harvest
Jun 25
fall planting
Direct sow
Jul 12
Projected first harvest
Sep 5
spring planting
fall planting
Kohlrabi is ready to harvest in about 55 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 kohlrabi
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 kohlrabi need about 55 days to mature.
Varieties to grow
1 variety of kohlrabi in the HomeSown library. Tap any for its full grow guide.
Common problems with kohlrabi
What to watch for, with identification and treatment for each
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