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When to Plant Mâche in Cascade, Montana (59421)

Location

Cascade, Montana

ZIP Code

59421

USDA Zone

4b

Last Frost

Tuesday, May 5, 2026

📅 Your 2026 Planting Dates

Direct Sow Outdoors

Tuesday, March 24, 2026

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

Pro tip: Sow Mâche directly outdoors 6 weeks before your last frost date.

🌿 Plant Details

Scientific Name Valerianella locusta
Days to Maturity 45 days
Mature Height 4-8"
Spread 4"

☀️ Growing Requirements

☀️

Sun

Partial Shade to Full Sun

💧

Water

Moderate (1 inch/week)

↔️

Spacing

4" apart

🌱

Planting Depth

0.25" deep

Seeds typically germinate in 7-14 days

Ready to Plant Mâche in Cascade?

Get your seeds now so they're ready by Tuesday, March 24, 2026.

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🤝 Good Companions

RadishCarrotBeet
🤝

Full Companion Planting Guide for Mâche

See which plants help Mâche thrive, which to keep away, and raised bed layout tips →

🛠️ Supplies You'll Need

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🌾 Seed Saving Guide

🟢 Easy
✅ Open-pollinated — seeds grow true to parent

When to Harvest Seed

Allow plants to flower and seed pods to dry on the plant.

Processing

Thresh dried plants over a bowl, separate seeds from chaff by winnowing.

Seed Viability

Up to 3 years when stored cool, dark, and dry.

Pro Tip

Mâche self-sows freely — allow some plants to go to seed in place for a perpetual crop.

🪴

Raised Bed Planting Guides

A 4×8 bed fits 9 per sq ft of Mâche. See plant counts, spacing grids, and companion pairings for every bed size →

Frequently Asked Questions

When should I plant Mâche in Cascade, Montana? +

In Cascade (Zone 4b), direct sow Mâche outdoors around Tuesday, March 24, 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 Mâche take to grow? +

Mâche typically matures in about 45 days from direct sowing. In Cascade, that means you can expect harvest around Tuesday, March 24, 2026 plus 45 days.

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

Mâche does best when direct sown outdoors. In Cascade, sow directly around Tuesday, March 24, 2026.

Other Plants for Cascade

Growing Mâche in Zone 4b

Mâche (Valerianella locusta) is a popular garden vegetable. In Cascade, Montana, which is in USDA Hardiness Zone 4b, you should direct sow seeds around Tuesday, March 24, 2026.

Your average last frost date is Tuesday, May 5, 2026. Mâche grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.