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When to Plant Radish in Boonsboro, Maryland (21713)

Location

Boonsboro, Maryland

ZIP Code

21713

USDA Zone

7a

Last Frost

Friday, April 10, 2026

📅 Planting Calendar

Direct Sow Outdoors Friday, February 27, 2026

Pro Tip: Radish can be directly sown outdoors. Plant 6 weeks before your last frost date.

🌿 Plant Details

Scientific Name Rhaphanus sativus
Days to Maturity 25 days
Mature Height 6-12"
Spread 3"
Type Root
Fruit Size Small (1-2 inches)

☀️ Growing Requirements

☀️

Sun

Full Sun to Partial Shade

💧

Water

Regular (keep moist)

↔️

Spacing

2" apart

🌱

Planting Depth

0.5" deep

Seeds typically germinate in 3-7 days

🤝 Good Companions

CarrotLettucePeaCucumberSpinach

⚠️ Avoid Planting Near

Hyssop

Other Plants for Boonsboro

Growing Radish in Zone 7a

Radish (Rhaphanus sativus) is a popular garden vegetable. In Boonsboro, Maryland, which is in USDA Hardiness Zone 7a, you should direct sow seeds around Friday, February 27, 2026.

Your average last frost date is Friday, April 10, 2026. Radish grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.