When to Plant Pansy in Saint Louis, Missouri (63166)

Location

Saint Louis, Missouri

ZIP Code

63166

USDA Zone

Last Frost

Friday, April 10, 2026

📅 Planting Calendar

Start Seeds Indoors Friday, February 13, 2026

Transplant Outdoors Friday, April 24, 2026

Pro Tip: Start Pansy seeds indoors 8 weeks before your last frost date, then transplant outdoors around Friday, April 24, 2026.

🌿 Plant Details

Scientific Name Viola x wittrockiana

Days to Maturity 50 days

Mature Height 6-10"

Spread 9"

☀️ Growing Requirements

☀️

Sun

Full Sun to Partial Shade

💧

Water

Moderate (1 inch/week)

↔️

Spacing

8" apart

🌱

Planting Depth

0.125" deep

Seeds typically germinate in 10-21 days

Ready to Plant Pansy in Saint Louis?

Get your seeds now so they're ready by Friday, February 13, 2026.

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Growing Pansy in Zone 7a

Pansy (Viola x wittrockiana) is a popular garden vegetable. In Saint Louis, Missouri, which is in USDA Hardiness Zone 7a, you should start seeds indoors around Friday, February 13, 2026.

Your average last frost date is Friday, April 10, 2026. Plan to transplant your Pansy seedlings outdoors around Friday, April 24, 2026, about 2 weeks after your last frost date.