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When to Plant Sweet Pea in Biwabik, Minnesota (55708)

Location

Biwabik, Minnesota

ZIP Code

55708

USDA Zone

3b

Last Frost

Wednesday, May 20, 2026

📅 Planting Calendar

Direct Sow Outdoors Wednesday, April 22, 2026

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

🌿 Plant Details

Scientific Name Lathyrus odoratus
Days to Maturity 65 days
Mature Height 48-72"
Spread 8"

☀️ Growing Requirements

☀️

Sun

Full Sun (6-8 hours)

💧

Water

Regular (1-2 inches/week)

↔️

Spacing

6" apart

🌱

Planting Depth

1" deep

Seeds typically germinate in 10-21 days

Ready to Plant Sweet Pea in Biwabik?

Get your seeds now so they're ready by Wednesday, April 22, 2026.

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🤝 Good Companions

CarrotRadishSpinach

⚠️ Avoid Planting Near

OnionGarlic

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Growing Sweet Pea in Zone 3b

Sweet Pea (Lathyrus odoratus) is a popular garden vegetable. In Biwabik, Minnesota, which is in USDA Hardiness Zone 3b, you should direct sow seeds around Wednesday, April 22, 2026.

Your average last frost date is Wednesday, May 20, 2026. Sweet Pea grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.