Find your zone
Use the official USDA map and ZIP code search for your location.
Growing basics
USDA Growing Zones
Understand what a hardiness zone can tell you, what it cannot, and how to combine it with local growing conditions.
What a USDA hardiness zone means
The USDA Plant Hardiness Zone Map groups locations by their average annual extreme minimum winter temperature. Gardeners commonly use a zone as one reference when considering whether a perennial plant may tolerate local winter cold.
A zone is not a planting-date calendar and does not guarantee that a plant will thrive. It does not describe summer heat, rainfall, soil, wind, sunlight or the care a plant receives.
Use zone information with local conditions
Check frost dates
Local first and last frost dates help with seasonal sowing and transplant timing.
Review the site
Sunlight, drainage, soil and exposure can vary even within one ZIP code.
Read product guidance
Use available product information together with reliable local guidance.
How to use zones on Seednary
When a product page includes a USDA hardiness zone, treat it as one decision aid, especially for perennial plants. Compare it with the product's other available growing information and guidance from your local Extension office.
If a product has no zone information, do not assume it is suitable for every U.S. location. Annual crops may be planned more effectively with frost dates and the length of the local growing season.
Find your official USDA zone
The link opens the U.S. Department of Agriculture Plant Hardiness Zone Map in a new tab.