When to Plant Komatsuna in Zone 10
In USDA zone 10a, plant outdoors January 16 to February 25, and expect your first harvest around February 25. Zone 10 also has a fall planting window opening around November 4. (10a shown here — see 10a and 10b dates separately below.)
Komatsuna planting calendar for USDA Zone 10a
Average last spring frost
January 30
Average first fall frost
December 30
spring planting
Direct sow
Jan 16
Projected first harvest
Feb 25
fall planting
Direct sow
Nov 4
Projected first harvest
Dec 14
spring planting
fall planting
Komatsuna is ready to harvest in about 40 days, needing roughly 334 frost-free days in zone 10a.
Komatsuna planting calendar for USDA Zone 10b
Average last spring frost
January 30
Average first fall frost
December 30
spring planting
Direct sow
Jan 16
Projected first harvest
Feb 25
fall planting
Direct sow
Nov 4
Projected first harvest
Dec 14
spring planting
fall planting
Komatsuna is ready to harvest in about 40 days, needing roughly 334 frost-free days in zone 10b.
Not sure whether you're in 10a or 10b? Set your ZIP in HomeSown for dates tuned to your exact location.
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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