What Can Grow in Idaho Falls, ID

Idaho Falls at higher elevation is cooler than Boise with a shorter season demanding cold-hardy approaches.

Idaho Falls, ID is in USDA Hardiness Zone 5b. The growing season lasts about 130 days, with last frost around May 15 and first fall frost around September 23. Top crops include potatoes, beets, carrots.

5bUSDA Zone
130 daysFrost-Free
May 15Last Frost
September 23First Frost
🌱 What Grows in Idaho Falls
potatoesbeetscarrotsbroccolikalebeans
💡 Planting Tips

Famous potato country. Volcanic soil is excellent. Shorter season — focus on fast-maturing varieties.

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🔗 More Resources
📍 Full Zone 5b Guide 🌎 Idaho Planting Guide

Frequently Asked Questions

Idaho Falls, ID is in USDA Plant Hardiness Zone 5b. Idaho Falls at higher elevation is cooler than Boise with a shorter season demanding cold-hardy approaches.

The average last spring frost in Idaho Falls is around May 15. The first fall frost typically arrives around September 23, giving a frost-free growing season of approximately 130 days.

Idaho Falls's Zone 5b climate supports growing potatoes, beets, carrots, broccoli, kale, beans. Famous potato country. Volcanic soil is excellent. Shorter season — focus on fast-maturing varieties.

In Idaho Falls, start with cool-season crops like lettuce, spinach, and broccoli a few weeks before the last frost date of May 15. Warm-season crops like tomatoes and peppers should go in after all frost risk has passed.