| The USDA Plant Hardiness Zone Map is an | | | | temperature below (-) 50 degree Fahrenheit. |
| essential tool for all landscapers and | | | | Example locations include Fairbanks, Alaska |
| gardeners, whether professionals or weekend | | | | and Northwest Territories in Canada.Zone 2 |
| do-it-yourselfers. This simple and free tool | | | | contains areas that see an average minimum |
| will help ensure you select only the correct | | | | temperature of (-) 50 to (-) 40 degrees. |
| plants, shrubs, or trees for your region. If | | | | Example locations include Prudhoe Bay, Alaska |
| you do not follow this guide you risk the | | | | and Pinecreek , Minnesota.Zone 3 ranges |
| health of your plant, and ultimately your | | | | between (-) 40 and (-) 30 degrees. Examples |
| time and money.The Map was designed to show | | | | are International Falls, Minnesota and |
| the average annual minimum temperature range | | | | Sidney, Montana.Zone 4 ranges between (-) 30 |
| throughout the United States, Canada, and | | | | and (-) 20 degrees. Examples are Minneapolis |
| Mexico. There are 11 different zones that | | | | and St. Paul, Minnesota and Northwood, |
| describe the minimum temperature that can be | | | | Iowa.Zone 5 ranges between (-) 20 and (-) 10 |
| expected. The zones were divided based on a | | | | degrees. Examples are Des Moines, Iowa and |
| 10 degree Fahrenheit difference in the | | | | Mansfield, Pennsylvania.Zone 6 ranges between |
| average annual minimum temperature.It is | | | | (-) 10 and 0 degrees. Examples are St. Louis, |
| important to understand the zones in order to | | | | Missouri, and Lebanon, Pennsylvania.Zone 7 |
| select a plant that will survive the winter | | | | ranges between 0 and 10 degrees. Examples are |
| in your region. This is called the plant's | | | | South Boston, Virginia and Little Rock |
| winter hardiness. The winter hardiness of the | | | | Arkansas.Zone 8 ranges between 10 and 20 |
| plant is one of the most crucial factors for | | | | degrees. Examples are Dallas, Texas and |
| the survival and environmental adaptation of | | | | Gainesville, Florida.Zone 9 ranges between 20 |
| the plant. A plant's hardiness indicates the | | | | and 30 degrees. Examples are Houston, Texas |
| lowest temperature the plant can sustain and | | | | and Fort Pierce, Florida.Zone 10 ranges |
| still survive.Most plants purchased at | | | | between 30 and 40 degrees. Examples are |
| commercial stores will have their hardiness | | | | Victorville, California and Miami, |
| level indicated on their tag. Determine the | | | | Florida.Zone 11 is for annual minimum |
| Hardiness Zone of the area in which the plant | | | | temperatures above 40 degrees. Examples |
| will be located, and make sure the plant's | | | | include Honolulu, Hawaii and Mazatlan, |
| hardiness falls within the correct zone.Zone | | | | Mexico. |
| 1 contains areas that see an average minimum | | | | |