USDA Hardiness Zones
I get a lot of questions about hardiness zones. In fact,
all gardeners have one all-abiding question about any plant they wish to
introduce into their growing spaces. "Will it flourish?".
The USDA publishes a hardiness zone map with details down to the county of each state. The map is huge! I have scanned the map (see permissions below) keeping all of the detail. No other web-site has this level of detail. You will be able to find exactly what zone you live. If any part of the scan is unclear for your area, e-mail me to let me know so I can make the area more detailed on the web. The image sizes range from 25-80k so that the county boundaries are clearly visible.
To understand the maps completely, please acquaint yourself with the supporting articles of interest. The USDA states that the maps are not intended to use above a certain elevation and are mainly guesstamates for higher elevations. My only intent is to allow folks to see the published USDA hardiness zone maps and the work that they conducted. As any gardener should, any extreme conditions should be made by experience and taken from those with experience.
| Choose USDA Maps |
Other Articles of Interest:
 | General Zone Description |
| Basic Plant Requirements (USDA Publication 1475) |
| How the Map Was Started (USDA Publication 1475) |
| Why the New Map Was Created (USDA Publication 1475) |
| How to Use the New Map (USDA Publication 1475) |
| How the Map Was Created (USDA Publication 1475) |
© Notice: All information on this and related pages is directly from the USDA Agricultural Research Service, Miscellaneous Publication Number 1475 "USDA Plant Hardiness Zone Map". This publication is not copyrighted, and permission to reproduce all or any part of it is not required.