When to Plant Impatiens in Dearborn, Missouri (64439)

Location

Dearborn, Missouri

ZIP Code

64439

USDA Zone

Last Frost

Monday, April 20, 2026

📅 Planting Calendar

Start Seeds Indoors Monday, February 9, 2026

Transplant Outdoors Monday, May 4, 2026

Pro Tip: Start Impatiens seeds indoors 10 weeks before your last frost date, then transplant outdoors around Monday, May 4, 2026.

🌿 Plant Details

Scientific Name Impatiens walleriana

Days to Maturity 60 days

Mature Height 8-18"

Spread 12"

☀️ Growing Requirements

☀️

Sun

Partial to Full Shade (2-4 hours)

💧

Water

Regular (1-2 inches/week)

↔️

Spacing

8" apart

🌱

Planting Depth

0.125" deep

Seeds typically germinate in 14-21 days

Ready to Plant Impatiens in Dearborn?

Get your seeds now so they're ready by Monday, February 9, 2026.

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🤝 Good Companions

BegoniaFernHostas

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Growing Impatiens in Zone 6a

Impatiens (Impatiens walleriana) is a popular garden vegetable. In Dearborn, Missouri, which is in USDA Hardiness Zone 6a, you should start seeds indoors around Monday, February 9, 2026.

Your average last frost date is Monday, April 20, 2026. Plan to transplant your Impatiens seedlings outdoors around Monday, May 4, 2026, about 2 weeks after your last frost date.