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When to Plant Larkspur in Mellette, South Dakota (57461)

Location

Mellette, South Dakota

ZIP Code

57461

USDA Zone

4a

Last Frost

Friday, May 15, 2026

📅 Planting Calendar

Direct Sow Outdoors Friday, April 17, 2026

Pro Tip: Sow Larkspur directly outdoors 4 weeks before your last frost date.

🌿 Plant Details

Scientific Name Consolida ajacis
Days to Maturity 65 days
Mature Height 24-48"
Spread 12"

☀️ Growing Requirements

☀️

Sun

Full Sun to Partial Shade

💧

Water

Moderate (1 inch/week)

↔️

Spacing

9" apart

🌱

Planting Depth

0.25" deep

Seeds typically germinate in 14-21 days

Ready to Plant Larkspur in Mellette?

Get your seeds now so they're ready by Friday, April 17, 2026.

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Other Plants for Mellette

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Growing Larkspur in Zone 4a

Larkspur (Consolida ajacis) is a popular garden vegetable. In Mellette, South Dakota, which is in USDA Hardiness Zone 4a, you should direct sow seeds around Friday, April 17, 2026.

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