What Can Grow in Billings, MT

Billings in the Yellowstone River valley is Montana's largest city with better growing conditions than most of the state.

Billings, MT is in USDA Hardiness Zone 5b. The growing season lasts about 145 days, with last frost around May 5 and first fall frost around October 2. Top crops include tomatoes, peppers, beans.

5bUSDA Zone
145 daysFrost-Free
May 5Last Frost
October 2First Frost
🌱 What Grows in Billings
tomatoespeppersbeansbeetssquashonions
💡 Planting Tips

River valley protection. Hot dry summers — irrigate. Start warm crops indoors March 15.

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📍 Full Zone 5b Guide 🌎 Montana Planting Guide

Frequently Asked Questions

Billings, MT is in USDA Plant Hardiness Zone 5b. Billings in the Yellowstone River valley is Montana's largest city with better growing conditions than most of the state.

The average last spring frost in Billings is around May 5. The first fall frost typically arrives around October 2, giving a frost-free growing season of approximately 145 days.

Billings's Zone 5b climate supports growing tomatoes, peppers, beans, beets, squash, onions. River valley protection. Hot dry summers — irrigate. Start warm crops indoors March 15.

In Billings, start with cool-season crops like lettuce, spinach, and broccoli a few weeks before the last frost date of May 5. Warm-season crops like tomatoes and peppers should go in after all frost risk has passed.