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When to Plant Radish in Scott Air Force Base, Illinois (62225)

Location

Scott Air Force Base, Illinois

ZIP Code

62225

USDA Zone

6b

Last Frost

Wednesday, April 15, 2026

📅 Planting Calendar

Direct Sow Outdoors Wednesday, March 4, 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 Scott Air Force Base

Growing Radish in Zone 6b

Radish (Rhaphanus sativus) is a popular garden vegetable. In Scott Air Force Base, Illinois, which is in USDA Hardiness Zone 6b, you should direct sow seeds around Wednesday, March 4, 2026.

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