When to Plant Shallot in Cascade, Montana (59421)

Location

Cascade, Montana

ZIP Code

59421

USDA Zone

Last Frost

Tuesday, May 5, 2026

📅 Your 2026 Planting Dates

Start Seeds Indoors

Tuesday, March 10, 2026

Transplant Outdoors

Tuesday, May 19, 2026

Based on last frost Tuesday, May 5, 2026 · Zone 4b

Pro tip: Start Shallot seeds indoors 8 weeks before your last frost date, then transplant outdoors around Tuesday, May 19, 2026.

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🌿 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 Cascade?

Get your seeds now so they're ready by Tuesday, March 10, 2026.

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🛠️ Supplies You'll Need

🌱 Seed Starting Trays 🪴 Seed Starting Mix 💡 Grow Lights 🌡️ Heat Mat 🪵 Raised Garden Bed 🌍 Vegetable Garden Soil 🛠️ Hand Trowel Set 🚿 Watering Can

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🌾 Seed Saving Guide

🪴 Vegetative propagation

Propagate vegetatively, not by seed

Shallots are typically propagated by dividing and replanting bulb offsets, not from seed.

Set aside small bulbs from the harvest to replant in fall or early spring for next year's crop.

Frequently Asked Questions

When should I plant Shallot in Cascade, Montana? +

In Cascade (Zone 4b), start Shallot seeds indoors around Tuesday, March 10, 2026 and transplant outdoors around Tuesday, May 19, 2026.

What is the last frost date for Cascade, Montana? +

The average last spring frost date for Cascade, Montana (ZIP 59421) is around Tuesday, May 5, 2026. This is based on NOAA climate normals for USDA Zone 4b.

How long does Shallot take to grow? +

Shallot typically matures in about 90 days from transplanting. In Cascade, that means you can expect harvest around Tuesday, May 19, 2026 plus 90 days.

Should I start Shallot indoors or direct sow in Montana? +

Shallot should be started indoors 8 weeks before your last frost date. In Cascade, that means starting around Tuesday, March 10, 2026.

📚 More Shallot Planting Guides

🗺️

Shallot in Montana

Zone-by-zone breakdown · Full state guide

→ 🌡️

Zone 4b Shallot Guide

All cities in your zone · Avg dates

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Other Plants for Cascade

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Growing Shallot in Zone 4b

Shallot (Allium cepa var. aggregatum) is a popular garden vegetable. In Cascade, Montana, which is in USDA Hardiness Zone 4b, you should start seeds indoors around Tuesday, March 10, 2026.

Your average last frost date is Tuesday, May 5, 2026. Plan to transplant your Shallot seedlings outdoors around Tuesday, May 19, 2026, about 2 weeks after your last frost date.