When to Plant Impatiens in Columbia, South Carolina (29229)

Location

Columbia, South Carolina

ZIP Code

29229

USDA Zone

Last Frost

Sunday, March 15, 2026

📅 Planting Calendar

Start Seeds Indoors Sunday, January 4, 2026

Transplant Outdoors Sunday, March 29, 2026

Pro Tip: Start Impatiens seeds indoors 10 weeks before your last frost date, then transplant outdoors around Sunday, March 29, 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 Columbia?

Get your seeds now so they're ready by Sunday, January 4, 2026.

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Growing Impatiens in Zone 8b

Impatiens (Impatiens walleriana) is a popular garden vegetable. In Columbia, South Carolina, which is in USDA Hardiness Zone 8b, you should start seeds indoors around Sunday, January 4, 2026.

Your average last frost date is Sunday, March 15, 2026. Plan to transplant your Impatiens seedlings outdoors around Sunday, March 29, 2026, about 2 weeks after your last frost date.