When to Plant Mint in Gann Valley, South Dakota (57341)
Location
Gann Valley, South Dakota
ZIP Code
57341
USDA Zone
4b
Last Frost
Tuesday, May 5, 2026
📅 Planting Calendar
Pro Tip: Sow Mint directly outdoors 4 weeks before your last frost date.
🌿 Plant Details
☀️ 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
Ready to Plant Mint in Gann Valley?
Get your seeds now so they're ready by Tuesday, April 7, 2026.
* Affiliate links — we may earn a small commission at no extra cost to you.
🤝 Good Companions
⚠️ Avoid Planting Near
Other Plants for Gann Valley
Growing Mint in Zone 4b
Mint (Mentha spicata) is a popular garden vegetable. In Gann Valley, South Dakota, which is in USDA Hardiness Zone 4b, you should direct sow seeds around Tuesday, April 7, 2026.
Your average last frost date is Tuesday, May 5, 2026. Mint grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.