Free Plant Hardiness Zone Finder
Discover your USDA hardiness zone instantly and learn which plants will thrive in your climate. Get personalized plant recommendations, frost dates, and growing tips for your zone.
Plant Hardiness Zone Finder
Find Your Zone
Enter your ZIP code to find your USDA hardiness zone
Find Your Plant Hardiness Zone
Enter your ZIP code or browse zones to discover which plants will thrive in your climate and get personalized growing recommendations.
Available Information:
Complete USDA hardiness zone data for the United States, including temperature ranges, frost dates, and plant recommendations for each zone.
Why Use Our Hardiness Zone Finder?
Knowing your hardiness zone is essential for successful gardening. Choose the right plants, plan your garden layout, and understand your local growing conditions.
Instant Zone Lookup
Get your USDA hardiness zone instantly with just your ZIP code. Fast, accurate, and based on the latest official USDA zone data.
Temperature Insights
Understand your zone's average minimum winter temperatures, frost dates, and growing season length to make informed planting decisions.
Plant Recommendations
Discover which plants, trees, and flowers are best suited for your hardiness zone with curated recommendations for each climate zone.
Start with the right plants for your climate and watch your garden flourish!
Understanding USDA Hardiness Zones
Learn how hardiness zones work and how to use them effectively for your garden planning.
What Are Hardiness Zones?
- •Geographic regions based on average annual minimum winter temperatures
- •Divided into 13 zones (1-12) from coldest to warmest
- •Each zone further divided into 'a' and 'b' sub-zones
- •Updated periodically by the USDA based on climate data
How to Use Zone Information
- •Choose plants rated for your zone or colder for best survival
- •Consider microclimates - protected areas can be warmer
- •Factor in summer heat tolerance and moisture needs
- •Use as a starting point, not an absolute limitation
Pro Tip: Beyond Hardiness Zones
While hardiness zones are essential for cold tolerance, also consider your area's heat zones, humidity, rainfall patterns, and soil conditions. Our AI garden design tool can help you create comprehensive planting plans that factor in all these variables for your specific location.
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Smart Suggestions
Get plant recommendations perfect for your climate zone