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Mizuna Planting Guide

Mizuna is a mild-flavored Japanese mustard green with feathery, deeply serrated leaves. It is fast-growing and makes an excellent addition to salads and stir-fries.

Brassica rapa var. nipposinica ยท Vegetable ยท Brassicaceae family ยท 30โ€“45 days to maturity

Get Your Personalized Mizuna Planting Dates

Enter your ZIP code to see exact planting dates, soil compatibility, and growing tips specific to your county.

Where Can You Grow Mizuna?

Mizuna Growing Regions

Click any state to see the Mizuna planting schedule for that location.

Planting Dates by Zone

Zone Start Indoors Direct Sow Transplant Harvest
Zone 3a Apr 3 May 8 May 15 Jun 19 โ€“ Jul 17
Zone 3b Mar 29 May 3 May 10 Jun 14 โ€“ Jul 12
Zone 4a Mar 25 Apr 29 May 6 Jun 10 โ€“ Jul 8
Zone 4b Mar 20 Apr 24 May 1 Jun 5 โ€“ Jul 3
Zone 5a Mar 21 Apr 11 Apr 25 May 30 โ€“ Jun 27
Zone 5b Mar 14 Apr 4 Apr 18 May 23 โ€“ Jun 20
Zone 6a Mar 6 Mar 27 Apr 10 May 15 โ€“ Jun 12
Zone 6b Feb 27 Mar 20 Apr 3 May 8 โ€“ Jun 5
Zone 7a Feb 18 Mar 11 Mar 25 Apr 29 โ€“ May 27
Zone 7b Feb 11 Mar 4 Mar 18 Apr 22 โ€“ May 20
Zone 8a Feb 1 Feb 22 Mar 8 Apr 12 โ€“ May 10
Zone 8b Jan 21 Feb 11 Feb 25 Apr 1 โ€“ Apr 29
Zone 9a Jan 13 Jan 20 Feb 10 Mar 17 โ€“ Apr 14
Zone 9b Dec 28 Jan 4 Jan 25 Mar 1 โ€“ Mar 29
Zone 10a Dec 4 Dec 11 Jan 1 Feb 5 โ€“ Mar 5
Zone 10b Dec 4 Dec 11 Jan 1 Feb 5 โ€“ Mar 5
Zone 11a Dec 4 Dec 11 Jan 1 Feb 5 โ€“ Mar 5
Zone 11b Dec 4 Dec 11 Jan 1 Feb 5 โ€“ Mar 5
Why are some columns showing "โ€”"?

Transplant shows "โ€”" because Mizuna is best direct sown where it will grow. Transplanting can disturb the roots and slow growth.

How to Plant Mizuna

0.5"
Planting Depth
6"
Between Plants
12"
Between Rows

๐Ÿ‚ Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Growing Conditions

โ˜€๏ธ Sun

Partial Shade (3-6 hours)

๐Ÿ’ง Water

Moderate โ€” regular watering

Water when the top inch of soil feels dry. Consistent moisture produces the best results.

๐Ÿงช Soil pH

6 โ€“ 7.5

Prefers neutral to slightly acidic soil โ€” ideal for most garden beds.

๐Ÿ—บ๏ธ Hardiness Zones

Zone 3a โ€“ 11b

๐Ÿ“… Days to Maturity

30โ€“45 days

One of the fastest crops โ€” harvest in under a month!

๐Ÿ‘ช Plant Family

Brassicaceae

Rotate with other families yearly to prevent soil-borne diseases. Don't plant in the same spot where Brassicaceae family crops grew last year.

Succession Planting Mizuna

Mizuna matures in just 30โ€“45 days, making it ideal for succession planting. In a typical 180-day growing season, you can get up to 7 successive plantings by sowing every 3.4 weeks.

Your actual succession count depends on your local frost dates. Enter your ZIP code to get personalized succession planting dates for your area.

Companion Planting for Mizuna

โœ… Good Companions

โŒ Keep Away From

Strawberries

Check more combinations with our Companion Planting Checker →

Growing Tips for Mizuna

Direct sow in spring or fall. Harvest outer leaves as needed for a cut-and-come-again approach. Mizuna is one of the most cold-tolerant Asian greens.

Saving Mizuna Seeds

Recommended for Your Garden

๐ŸŒฑ
Seed Starting Trays $8-20

Start seeds indoors with reusable cell trays and humidity domes.

๐Ÿงช
Soil Test Kit $12-25

Test your soil pH, nitrogen, phosphorus, and potassium levels before planting.

๐Ÿท๏ธ
Garden Plant Markers $6-12

Keep your garden organized with durable, weather-resistant plant labels.

Level Up Your Garden

Mizuna by State

Frequently Asked Questions

How long does it take to grow Mizuna?

Mizuna (Brassica rapa var. nipposinica) takes 30 to 45 days from planting to harvest. Exact timing depends on your variety, growing conditions, and USDA zone.

What zones can Mizuna grow in?

Mizuna can be grown in USDA zones 3a through 11b. Use the planting calendar above to find the exact dates for your zone.

How much sun does Mizuna need?

Growing Mizuna requires Partial Shade (3-6 hours), Moderate โ€” regular watering, and soil pH of 6 to 7.5.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals, University Cooperative Extension planting guides. Last updated: April 2026.