my LocalPlanting

When to Plant Potato in Coalmont, Colorado (80430)

Location

Coalmont, Colorado

ZIP Code

80430

USDA Zone

4b

Last Frost

Tuesday, May 5, 2026

📅 Planting Calendar

Direct Sow Outdoors Tuesday, April 7, 2026

Pro Tip: Sow Potato directly outdoors 4 weeks before your last frost date.

🌿 Plant Details

Scientific Name Solanum tuberosum
Days to Maturity 90 days
Mature Height 18-24"
Spread 12"
Type Tuber
Fruit Size Variable

☀️ Growing Requirements

☀️

Sun

Full Sun (6+ hours)

💧

Water

Regular (1-2 inches/week)

↔️

Spacing

12" apart

🌱

Planting Depth

4" deep

Seeds typically germinate in 8-21 days

Ready to Plant Potato in Coalmont?

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

BeanCornBrassicasHorseradishMarigold

⚠️ Avoid Planting Near

TomatoCucumberSquashSunflower

Other Plants for Coalmont

Growing Potato in Zone 4b

Potato (Solanum tuberosum) is a popular garden vegetable. In Coalmont, Colorado, 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. Potato grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.