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When to Plant Mizuna in Cold Spring Harbor, New York (11724)

Location

Cold Spring Harbor, New York

ZIP Code

11724

USDA Zone

7b

Last Frost

Sunday, April 5, 2026

📅 Planting Calendar

Direct Sow Outdoors Sunday, March 8, 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 Cold Spring Harbor?

Get your seeds now so they're ready by Sunday, March 8, 2026.

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🤝 Good Companions

CarrotOnionBeetSpinach

⚠️ Avoid Planting Near

StrawberryTomato

Other Plants for Cold Spring Harbor

Growing Mizuna in Zone 7b

Mizuna (Brassica rapa var. nipposinica) is a popular garden vegetable. In Cold Spring Harbor, New York, which is in USDA Hardiness Zone 7b, you should direct sow seeds around Sunday, March 8, 2026.

Your average last frost date is Sunday, April 5, 2026. Mizuna grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.