What Can Grow in Boise, ID

Boise's high desert valley climate has warm dry summers and cold winters — excellent for stone fruit and vegetables.

Boise, ID is in USDA Hardiness Zone 6b. The growing season lasts about 153 days, with last frost around April 20 and first fall frost around October 20. Top crops include tomatoes, peppers, beans.

6bUSDA Zone
153 daysFrost-Free
April 20Last Frost
October 20First Frost
🌱 What Grows in Boise
tomatoespeppersbeansonionspotatoessquash
💡 Planting Tips

Hot dry summers — irrigate consistently. Plant warm crops after May 1. Fall garden in August.

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📍 Full Zone 6b Guide 🌎 Idaho Planting Guide

Frequently Asked Questions

Boise, ID is in USDA Plant Hardiness Zone 6b. Boise's high desert valley climate has warm dry summers and cold winters — excellent for stone fruit and vegetables.

The average last spring frost in Boise is around April 20. The first fall frost typically arrives around October 20, giving a frost-free growing season of approximately 153 days.

Boise's Zone 6b climate supports growing tomatoes, peppers, beans, onions, potatoes, squash. Hot dry summers — irrigate consistently. Plant warm crops after May 1. Fall garden in August.

In Boise, start with cool-season crops like lettuce, spinach, and broccoli a few weeks before the last frost date of April 20. Warm-season crops like tomatoes and peppers should go in after all frost risk has passed.