what planting zone is boise idaho

Michelle Hill

Title: What Planting Zone is Boise Idaho? A Comprehensive GuideMeta Description: Discover the planting zone of Boise Idaho and learn which plants thrive in this region. This guide covers everything you need to know about Boise Idaho’s climate, soil, and gardening tips.Introduction:Boise Idaho is a beautiful city located in the Treasure Valley of southwestern Idaho. It is the capital and largest city of Idaho, with a population of over 200,000 people. Boise is known for its natural beauty, outdoor recreation, and vibrant cultural scene. However, if you’re a gardening enthusiast or planning on starting a garden in Boise, you might be curious about the planting zone of this region. In this guide, we will explore the question, “What planting zone is Boise Idaho?” and provide you with all the necessary information to help you plan your garden and choose the right plants.

What is a Planting Zone?

Before we dive into the planting zone of Boise Idaho, let’s first understand what a planting zone is. A planting zone is a geographical area that is defined by its climate and growing conditions. The United States Department of Agriculture (USDA) has divided the United States into 13 different planting zones based on the average annual minimum temperature. These zones range from Zone 1 (coldest) to Zone 13 (warmest). Each zone is further divided into subzones (a or b), which indicate small temperature variations within each zone.

What Planting Zone is Boise Idaho?

Boise Idaho falls under USDA Plant Hardiness Zone 6a. This means that the average annual minimum temperature in Boise is between -10 to -5 degrees Fahrenheit. However, it is important to note that this is just a general guideline, and the actual temperature can vary depending on the location and elevation of your garden. Boise Idaho also falls under the AHS Heat Zone 2, which means that there are approximately 30-45 heat days (days with temperatures above 86 degrees Fahrenheit) per year.

What Plants Thrive in Boise Idaho’s Planting Zone?

Now that we know Boise Idaho’s planting zone, let’s explore the plants that thrive in this region. Boise has a semi-arid climate, with hot summers and cold winters. The soil in Boise is typically alkaline, which means that it has a high pH level. Here are some plants that can thrive in Boise Idaho’s planting zone:


– Blue Spruce- Douglas Fir- Austrian Pine- Quaking Aspen- Maple


– Lilac- Juniper- Spirea- Butterfly Bush- Russian Sage


– Coneflower- Black-eyed Susan- Daylily- Iris- Daffodil

Fruits and Vegetables

– Apples- Pears- Peaches- Cherries- Tomatoes- Peppers- Squash- Zucchini

Gardening Tips for Boise Idaho

If you’re planning on starting a garden in Boise, here are some gardening tips to keep in mind:- Choose plants that are adapted to Boise’s semi-arid climate and alkaline soil.- Water your plants deeply and infrequently to encourage deep root growth.- Use mulch to retain moisture and prevent weeds.- Plant in raised beds to improve drainage and soil quality.- Protect your plants from extreme temperatures by using frost blankets or other coverings.- Consider using drip irrigation to conserve water and reduce evaporation.


What is the best time to plant in Boise Idaho?

The best time to plant in Boise Idaho is in the spring (late April to early June) or fall (late August to early October). This is when the temperatures are mild and the soil is warm.

Can I grow citrus fruits in Boise Idaho?

Citrus fruits are not well-suited to Boise Idaho’s planting zone. However, you can try growing them in containers indoors or in a greenhouse.

What is the average rainfall in Boise Idaho?

The average annual rainfall in Boise Idaho is around 12-13 inches per year.Conclusion:Boise Idaho’s planting zone is USDA Plant Hardiness Zone 6a, with a semi-arid climate and alkaline soil. By choosing plants that are adapted to this region and following some gardening tips, you can create a beautiful and thriving garden in Boise. Whether you’re a seasoned gardener or a beginner, Boise’s planting zone offers a wide range of plants to choose from. Happy gardening!

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