When to Plant Larkspur in Union Pier, Michigan (49129)

Location

Union Pier, Michigan

ZIP Code

49129

USDA Zone

Last Frost

Wednesday, April 15, 2026

📅 Planting Calendar

Direct Sow Outdoors Wednesday, March 18, 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 Union Pier?

Get your seeds now so they're ready by Wednesday, March 18, 2026.

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Other Plants for Union Pier

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Growing Larkspur in Zone 6b

Larkspur (Consolida ajacis) is a popular garden vegetable. In Union Pier, Michigan, which is in USDA Hardiness Zone 6b, you should direct sow seeds around Wednesday, March 18, 2026.

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