Mizuna Growing Guide
Growing Mizuna is easier than you think. This guide walks you through everything you need — from planting your first seed to harvesting.
At a Glance
Difficulty
Easy
Category
Vegetable
Sun Exposure
Full Sun
Frost Tolerance
Frost Hardy
Cold Hardiness
Survives to -9°C
Plant Family
Brassicaceae
Growing Season
Cool Season
Plant Lifecycle
Annual
Also grows well as
How to Start It
★ Recommended for beginners
Sow direct about 0.5 cm deep from early spring, then again in late summer for autumn. For baby leaf, sow thickly and don't thin; for full plants, thin to 15 cm.
A mild, feathery Japanese mustard green for salads and stir-fries. Quick and cold-tough, it crops in about 40 days and regrows after cutting — perfect for repeat sowings spring and autumn.
When To Start
First Chance to Plant
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Last Chance to Plant
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When should you plant Mizuna?
Your planting dates depend on your local climate. Sign up and add your location to unlock personalized dates.
Your Mizuna Planting Window
Start planting
May 15, 2026
Last chance
Sep 10, 2026
The Journey Ahead
Mizuna's Lifecycle
Seedling
Mature Plant
Seed Production
Step 2
Planting & Sprouting
Expect sprouts in 4–8 days
Growing Tips
- 1Mizuna is one of the easiest greens: cold-hardy, fast, and forgiving.
- 2Keep it watered to stay mild and tender, and sow a fresh patch every few weeks.
- 3It shrugs off frost and even grows under cover in winter.
Seedling Phase
Step 3
Growth & Maturity
~40
Days to Maturity
30 cm
Mature Height
25 cm
Mature Width
Pests to Watch For
Diseases to Watch For
Mature Plant
Step 4
Harvesting
Harvest Window
60 days
When to Pick
Cut leaves from ~3 weeks (baby) onward; regrows several times
How to Harvest
- 1Snip outer leaves as baby greens from about 3 weeks, or cut the whole plant about 3 cm above the crown and let it regrow — you'll get several harvests from one sowing.
Step 5
Saving Seeds
How to Save Seeds
Let a few plants bolt and form seed pods, then collect when dry. Crosses with other brassicas.
Seed Production
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