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When to Plant Watermelon Radish in Great Neck, New York (11021)

Location

Great Neck, New York

ZIP Code

11021

USDA Zone

7b

Last Frost

Sunday, April 5, 2026

📅 Planting Calendar

Direct Sow Outdoors Sunday, March 8, 2026

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

🌿 Plant Details

Scientific Name Raphanus sativus
Days to Maturity 60 days
Mature Height 6-10"
Spread 4"

☀️ Growing Requirements

☀️

Sun

Full Sun (6-8 hours)

💧

Water

Regular (1-2 inches/week)

↔️

Spacing

4" apart

🌱

Planting Depth

0.5" deep

Seeds typically germinate in 3-7 days

Ready to Plant Watermelon Radish in Great Neck?

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

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🤝 Good Companions

CarrotSpinachLettucePea

⚠️ Avoid Planting Near

Hyssop

Other Plants for Great Neck

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Growing Watermelon Radish in Zone 7b

Watermelon Radish (Raphanus sativus) is a popular garden vegetable. In Great Neck, 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. Watermelon Radish grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.