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When to Plant Mint in Walhalla, North Dakota (58282)

Location

Walhalla, North Dakota

ZIP Code

58282

USDA Zone

4a

Last Frost

Friday, May 15, 2026

📅 Planting Calendar

Direct Sow Outdoors Friday, April 17, 2026

Pro Tip: Mint can be directly sown outdoors. Plant 4 weeks before your last frost date.

🌿 Plant Details

Scientific Name Mentha spicata
Days to Maturity 90 days
Mature Height 12-24"
Spread 24"
Type Spreading
Fruit Size N/A

☀️ Growing Requirements

☀️

Sun

Partial Shade to Full Sun

💧

Water

Regular (keep moist)

↔️

Spacing

18" apart

🌱

Planting Depth

0.25" deep

Seeds typically germinate in 10-15 days

🤝 Good Companions

CabbageTomatoPea

⚠️ Avoid Planting Near

ParsleyChamomile

Other Plants for Walhalla

Growing Mint in Zone 4a

Mint (Mentha spicata) is a popular garden vegetable. In Walhalla, North Dakota, which is in USDA Hardiness Zone 4a, you should direct sow seeds around Friday, April 17, 2026.

Your average last frost date is Friday, May 15, 2026. Mint grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.