ZonePlant

State reference · West

Montana

Montana (MT) covers 6 primary USDA hardiness zones across 399 zip codes. Capital: Helena.


USDA hardiness zones in Montana

Zone share is computed from the 399 zip codes within Montana. The most common zone is the best starting point for state-wide guidance; check your local zip for microclimate accuracy.

State-wide baseline

Zone 4b covers the largest share of Montana, with winter lows around -25°F to -20°F and a typical growing season of 130 days. Zone 4b guide →

Crops suited to Montana

Crops whose recommended USDA zone range overlaps Montana's dominant zones. 87 crops match.

Tree fruit

12 crops

See all 12 tree fruit →

Berries

20 crops

See all 20 berries →

Nuts

6 crops

Vegetables

40 crops

See all 40 vegetables →

Herbs

9 crops

See all 9 herbs →

Largest cities in Montana

Cities ranked by population (GeoNames public-domain data). Each city has a curated planting reference with its USDA zone, frost dates, and recommended crops.

Curated zip pages in Montana

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