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When to Plant Mizuna in East Grand Forks, Minnesota (56721)

Location

East Grand Forks, Minnesota

ZIP Code

56721

USDA Zone

4a

Last Frost

Friday, May 15, 2026

📅 Planting Calendar

Direct Sow Outdoors Friday, April 17, 2026

Pro Tip: Sow Mizuna directly outdoors 4 weeks before your last frost date.

🌿 Plant Details

Scientific Name Brassica rapa var. nipposinica
Days to Maturity 40 days
Mature Height 8-18"
Spread 8"

☀️ Growing Requirements

☀️

Sun

Partial to Full Sun (4-6 hours)

💧

Water

Regular (1-2 inches/week)

↔️

Spacing

6" apart

🌱

Planting Depth

0.25" deep

Seeds typically germinate in 4-7 days

Ready to Plant Mizuna in East Grand Forks?

Get your seeds now so they're ready by Friday, April 17, 2026.

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🤝 Good Companions

CarrotOnionBeetSpinach

⚠️ Avoid Planting Near

StrawberryTomato

Other Plants for East Grand Forks

Growing Mizuna in Zone 4a

Mizuna (Brassica rapa var. nipposinica) is a popular garden vegetable. In East Grand Forks, Minnesota, which is in USDA Hardiness Zone 4a, you should direct sow seeds around Friday, April 17, 2026.

Your average last frost date is Friday, May 15, 2026. Mizuna grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.