When to Plant Impatiens in White Owl, South Dakota (57792)

Location

White Owl, South Dakota

ZIP Code

57792

USDA Zone

Last Frost

Tuesday, May 5, 2026

📅 Planting Calendar

Start Seeds Indoors Tuesday, February 24, 2026

Transplant Outdoors Tuesday, May 19, 2026

Pro Tip: Start Impatiens seeds indoors 10 weeks before your last frost date, then transplant outdoors around Tuesday, May 19, 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 White Owl?

Get your seeds now so they're ready by Tuesday, February 24, 2026.

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Growing Impatiens in Zone 4b

Impatiens (Impatiens walleriana) is a popular garden vegetable. In White Owl, South Dakota, which is in USDA Hardiness Zone 4b, you should start seeds indoors around Tuesday, February 24, 2026.

Your average last frost date is Tuesday, May 5, 2026. Plan to transplant your Impatiens seedlings outdoors around Tuesday, May 19, 2026, about 2 weeks after your last frost date.