When to Plant Komatsuna in Zone 9
In USDA zone 9, plant outdoors February 15 to March 27, and expect your first harvest around March 27. Zone 9 also has a fall planting window opening around October 6.
Komatsuna planting calendar for USDA Zone 9
spring planting
Direct sow
Feb 15
Projected first harvest
Mar 27
fall planting
Direct sow
Oct 6
Projected first harvest
Nov 15
spring planting
fall planting
Komatsuna is ready to harvest in about 40 days. Dates use USDA zone 9a average frost dates. Set your ZIP in HomeSown for dates tuned to your exact location.
What zone 9 means for komatsuna
Average last spring frost
March 1
Average first fall frost
December 1
Those two dates are what set the schedule above. Zone 9 gives you roughly 275 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
🌱 Grow komatsuna with a calendar built for your exact yard
HomeSown turns your ZIP code into a personalized planting calendar, watering reminders, and pest help. Free to start.
Start your free garden →