Purple Mizuna

Family: Brassicaceae Vegetable

Tender, peppery leaves arrive in a richly hued purple—deep wine-purple with green undertones—so vivid they look almost lacquered in the garden.

At maturity in about 35 days, Purple Mizuna forms an airy rosette of finely cut, lacy fronds with a crisp, succulent bite and a bright mustard bite that mellows beautifully when warmed. Ideal for fresh salads, quick sautés, and vibrant stir-fries, this variety also shines in sauces and quick pickles for color that stays bold.

Light: Part SunMaturity: 35 DaysHabit: Rosette

Planting schedules and alerts are optimized for Columbus (Zone 6b).

Crop Dates

Milestone	Date
Start Indoors	Mar 28th
Last Frost	Apr 25th
Transplant / Sow Outdoors	Apr 25th
Harvest Begins	May 30th
Harvest Ends	Oct 16th

Crop Details

Trait	Value
Days to Maturity	35
Sun Requirements	Part Sun
Growth Habit	Rosette
Support Needed	None
Planting Depth	Normal
Germination Temp (°F)	85
Min Soil Temp (°F)	45
Min Night Temp (°F)	30
Harden Off (days)	6

Culinary Notes

Chef's Note

Purple Mizuna is a mustard green built for contrast: raw it delivers a sharp, peppery snap, but the bitterness smooths quickly once it hits heat. Use it hot and fast—short sauté, bright vinegar, and assertive aromatics keep it from turning muddy.

Best Uses

raw mizuna salads where the leaves stay snappy under vinaigrette
quick sauté or stir-fry—wilt fast, keep the pepper alive
fast pickles/quick brines for high-contrast purple that doesn’t go dull
folding into a warm sauce or broth to temper bitterness

Flavor Profile

crisp, succulent bite peppery mustard snap with a clean bite slightly bitter edge that rounds off with heat lacy, finely cut texture that clings to dressings

Kitchen Pairings

garlic lemon sesame oil ginger soy sauce rice vinegar

Frequently Asked Questions

What pest or disease problem commonly affects Brassica rapa var. niposinica (purple mizuna), and how do I control it?

Watch for cabbage aphids and flea beetles—both can leave small holes or stippling on mizuna leaves. Spray plants with insecticidal soap for aphids, and protect seedlings with fine row cover (remove only for watering and harvesting). If you see clubroot symptoms (wilting with swollen roots), avoid planting brassicas in that spot for several years and don’t reuse the soil in raised beds.

How often should I water purple mizuna during its main growing phase (about the first 3–5 weeks)?

Keep the top 1–2 inches of soil consistently moist but not waterlogged; mizuna grows best with steady moisture through leaf development. In part-sun beds, water about 1–2 times per week, increasing to maintain moisture after hot spells—aim for damp soil, not standing water. Mulch lightly to reduce drying, and water at the soil line to keep leaves from staying wet.

How can I tell when purple mizuna is ready to harvest?

Harvest when leaves are tender and full-sized—typically around 35 days from sowing for Brassica rapa var. niposinica, with plants about 4–6 inches tall. You can use “cut-and-come-again” by snipping outer leaves with scissors, leaving the center to regrow. If you notice rapid bolting (flower stalk starting), harvest immediately to keep leaves from turning tough and bitter.