Mizuna in Zone 11a & 11b
Brassica rapa var. nipposinica
When to plant mizuna in zone 11b
Zones 11a and 11b share the same average frost dates in our data, so this page covers both.
Method: Direct sow: Direct-sow outside. Mizuna doesn't transplant well, or doesn't need the extra time indoors.
| Start indoors | Not typically started indoors |
|---|---|
| Direct sow / transplant outside | Dec 11–Dec 18 |
| Estimated harvest | Jan 20 '27–Jan 27 '27 (~40 days after direct-sowing) |
Spacing: 9 per square foot (square-foot-gardening spacing). Mature height: 0.5-1 ft.
Mizuna is a feathery-leaved Japanese mustard green prized for its mild, slightly peppery flavor and quick turnaround, one of the fastest crops you can put in a salad-garden bed.
How mizuna fits zone 11's season
Zone 11b is frost-free in this dataset, so frost is not what limits the calendar here. What you can plant, and when, comes down to summer heat and daylength instead.
Good companions
No standout companions recorded yet for Mizuna.
Where to buy mizuna seeds
See why we recommend these suppliers →
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See it growing
Search YouTube for "growing mizuna" videos → (a live search, not a hand-picked video; results vary and aren't vetted by us)
← Back to the full zone 11b calendar · Full companion planting guide · Full plant profile · Plan your beds in the Garden Designer →
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Growing Mizuna in USDA zone 11b: when to start seeds indoors, when to direct-sow, and when to expect a harvest.
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