When to Plant Shallot in Cardwell, Montana (59721)

Location

Cardwell, Montana

ZIP Code

59721

USDA Zone

Last Frost

Sunday, May 10, 2026

📅 Planting Calendar

Start Seeds Indoors Sunday, March 15, 2026

Transplant Outdoors Sunday, May 24, 2026

Pro Tip: Start Shallot seeds indoors 8 weeks before your last frost date, then transplant outdoors around Sunday, May 24, 2026.

🌿 Plant Details

Scientific Name Allium cepa var. aggregatum

Days to Maturity 90 days

☀️ Growing Requirements

☀️

Sun

Full Sun

💧

Water

Regular

Seeds typically germinate in 8-21 days

Ready to Plant Shallot in Cardwell?

Get your seeds now so they're ready by Sunday, March 15, 2026.

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Growing Shallot in Zone 5a

Shallot (Allium cepa var. aggregatum) is a popular garden vegetable. In Cardwell, Montana, which is in USDA Hardiness Zone 5a, you should start seeds indoors around Sunday, March 15, 2026.

Your average last frost date is Sunday, May 10, 2026. Plan to transplant your Shallot seedlings outdoors around Sunday, May 24, 2026, about 2 weeks after your last frost date.