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When to Plant Lupine in Cohasset, Minnesota (55721)

Location

Cohasset, Minnesota

ZIP Code

55721

USDA Zone

4a

Last Frost

Friday, May 15, 2026

📅 Planting Calendar

Direct Sow Outdoors Friday, April 17, 2026

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

🌿 Plant Details

Scientific Name Lupinus polyphyllus
Days to Maturity 365 days
Mature Height 24-48"
Spread 24"

☀️ Growing Requirements

☀️

Sun

Full Sun to Partial Shade

💧

Water

Moderate (1 inch/week)

↔️

Spacing

18" apart

🌱

Planting Depth

0.5" deep

Seeds typically germinate in 14-21 days

Ready to Plant Lupine in Cohasset?

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

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🤝 Good Companions

CarrotBrassicasCorn

⚠️ Avoid Planting Near

Fennel

Other Plants for Cohasset

Growing Lupine in Zone 4a

Lupine (Lupinus polyphyllus) is a popular garden vegetable. In Cohasset, Minnesota, 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. Lupine grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.