Vegetable · Brassicaceae
When to plant mizuna
Mild for a mustard, feathery, and quick enough to be the first thing you cut in spring. Cut-and-come-again rather than a single harvest.
Sow direct
4 weeks before
Counted from your last spring frost.
Days to maturity
35-45
From sowing to a first picking.
Frost tolerance
Hardy
How much cold the plant itself will take.
Those weeks become real dates once you name a place.
Timing, in frost-relative terms
Seed packets rarely give calendar dates, because a date that suits one latitude is wrong at another. They give offsets from the last spring frost instead, and those offsets are what make mizuna plantable anywhere.
- Sow direct 4 weeks before the last frost.
- Expect 35–45 days to maturity, counted from sowing.
- Sow again every 14 days for a continuous supply.
- Can also be sown in late summer for an autumn crop or to overwinter.
Getting the timing right
Sow from four weeks before the last frost and every two weeks after. A late-summer sowing under cover picks through most of the winter.
Frost tolerance
Hardy to about -8C unprotected and considerably lower under a cloche, which makes it one of the most useful winter salad leaves.
Classified as hardy, with damage expected below -8°C (17.6°F)17.6°F (-8°C).