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When to Plant Lupine in Minneapolis, Minnesota (55439)

Location

Minneapolis, Minnesota

ZIP Code

55439

USDA Zone

5a

Last Frost

Sunday, May 10, 2026

📅 Planting Calendar

Direct Sow Outdoors Sunday, April 12, 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 Minneapolis?

Get your seeds now so they're ready by Sunday, April 12, 2026.

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🤝 Good Companions

CarrotBrassicasCorn

⚠️ Avoid Planting Near

Fennel

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Growing Lupine in Zone 5a

Lupine (Lupinus polyphyllus) is a popular garden vegetable. In Minneapolis, Minnesota, which is in USDA Hardiness Zone 5a, you should direct sow seeds around Sunday, April 12, 2026.

Your average last frost date is Sunday, May 10, 2026. Lupine grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.