Hardiness Zone Finder
Enter your zip code or postal code to find your USDA or Canadian hardiness zone. See temperature ranges and discover plants that thrive in your area.
Find Your ZoneFree Garden Tools
Garden Tools & Calculators
Free, professional-grade calculators for plant spacing, soil volume, mulch coverage, and more. No sign-up required.
Why Gardeners Choose Our Calculators
Built by gardeners, for gardeners. Professional results without the complexity.
100% Free
No sign-up, no paywall. Every calculator is free forever.
Mobile Friendly
Works perfectly on phones, tablets, and desktops.
No Data Collected
Your calculations stay in your browser. Nothing is tracked.
Professionally Accurate
Formulas vetted against industry standards and horticultural guides.
More Tools Coming Soon
We're building planner boards, plant lists, and more garden design tools. Check back soon!
Garden Planner
Plan your garden layouts and track your planting schedule. Organize beds, borders, and botanical projects.
Plant Lists
Create and manage custom plant lists for your garden projects, wish lists, and shopping trips.