What Growing Zone Am I In?
Enter your ZIP code to find your USDA Plant Hardiness Zone and best plants to grow.
What is a Plant Hardiness Zone?
The USDA Plant Hardiness Zone Map is the standard by which gardeners and growers can determine which plants are most likely to thrive at a location. The map is based on the average annual minimum winter temperature, divided into 10°F zones.
How to Use This Tool
Enter your ZIP code above to find your growing zone. Your zone tells you which plants can survive your winter temperatures and when to plant them.
Note: This tool shows outdoor garden plants (vegetables, fruits, herbs, and landscape plants) that can survive your local winter temperatures. Indoor houseplants like pothos, snake plants, and monstera are not listed here because they grow indoors and are not affected by outdoor winter zones.
What Do Zone Letters Mean?
Zones are divided into "a" and "b" halves, representing 5°F increments. For example, Zone 7a has minimum temperatures of 0°F to 5°F, while Zone 7b has minimum temperatures of 5°F to 10°F.
Data Sources
- ZIP to Zone mapping: USDA 2023 Plant Hardiness Zone Map (PRISM Climate Group, Oregon State University)
- Frost date estimates: Based on USDA Plant Hardiness Zone Method, referenced from university extension services including Penn State Extension, University of Illinois Extension, and Oregon State University Extension
- Plant hardiness zones: Compiled from USDA Plants Database and university extension growing guides.
Frost dates are approximate ranges based on long-term climate averages. For exact planting dates, consult your local county extension office.