When to Plant Komatsuna in Zone 4
In USDA zone 4, plant outdoors May 1 to June 10, and expect your first harvest around June 10. Zone 4 also has a fall planting window opening around July 26.
Komatsuna planting calendar for USDA Zone 4
spring planting
Direct sow
May 1
Projected first harvest
Jun 10
fall planting
Direct sow
Jul 26
Projected first harvest
Sep 4
spring planting
fall planting
Komatsuna is ready to harvest in about 40 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 komatsuna
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 komatsuna need about 40 days to mature.
Varieties to grow
1 variety of komatsuna in the HomeSown library. Tap any for its full grow guide.
Common problems with komatsuna
What to watch for, with identification and treatment for each
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