What plant hardiness zone am I in?
Plant Hardiness Zone Map
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What is my USDA Plant Hardiness Zone?
Find your 2023 USDA Plant Hardiness Zone based on your current device location, along with a map of plant hardiness zones in your area and in the United States.
Compare the 2023 and 2012 USDA Plant Hardiness Zone Maps to see how the zones have changed over the last decade in your area.
Minimum winter temperatures are a major determinant of whether a particular plant selection can be successfully grown outside year around. There are other factors that influence plant survival, such as snow cover, summer heat, humidity, soil moisture, and spring frosts.
What are Plant Hardiness Zones?
Plant hardiness zones are a system used by gardeners, landscapers, and agriculturalists to help determine which plants are best suited for a specific location. The map of the United States is commonly broken up into 11 zones ranging from zone 1A (the most cold-hardy) to zone 11B (the least cold-hardy). The exact borders of each zone are based on the average minimum winter temperature in that region.
This plant hardiness zone map shows the range of temperatures where plants can survive the winter. The plant hardiness zone is determined by the minimum temperatures and the minimum number of days in a year where the minimum temperature is reached. The plant hardiness zone is helpful because it allows you to select plants that will survive the winter in your area. This will help ensure that your plants are able to survive the winter and are able to provide you with the fruit or vegetable that you are hoping for.
The first geographical zone map was created by the United States Department of Agriculture (USDA) in 1920s to help farmers determine which plants would be best suited for the climate in their area. Since then, it has been a valuable tool for gardeners and farmers to determine which plants are best suited for their region. Plant hardiness zones are a system of mapping the climate of a region. They provide a range of temperatures and the plants that can be successfully grown in those areas.
Dynamic Plant Hardiness Map
Unlike other plant hardiness websites and maps, this site offers a fully dynamic and interactive map that allows you to zoom and pan to see the exact zone and microclimate for your location according to the USDA.
You can find the zone based on your current device location, or by searching for your city, town, ZIP code, or you can search for the zone based on the address you wish to locate.
Plant Hardiness Zone Atlas
Our plant hardiness zone atlas has a list of cities in the United States to help you find the USDA zone of any location in the country.
About Custer County, Montana
Custer County is a county located in the southeast part of the U.S. state of Montana. As of the 2020 U.S. census, the population was 11,867. Its county seat and largest town is Miles City. The county was established after the end of the American Civil War (1861-1865), on June 2, 1865, as one of the nine original counties of the new western federal Territory of Montana, which had been formed the previous May of 1864 by the United States Congress, with the approval of 16th President Abraham Lincoln. It was originally named Big Horn County of the old Montana Territory, and was renamed on February 16, 1877, in honor of Lieutenant Colonel George Armstrong Custer (1839-1876), commander of the famous 7th Cavalry Regiment of the United States Army, recently massacred and killed in the nearby Battle of the Little Bighorn, in the later portion of the American Indian Wars, the year before in June 1876.
About Hardiness zone
A hardiness zone is a geographic area defined as having a certain average annual minimum temperature, a factor relevant to the survival of many plants. In some systems other statistics are included in the calculations. The original and most widely used system, developed by the United States Department of Agriculture (USDA) as a rough guide for landscaping and gardening, defines 13 zones by long-term average annual extreme minimum temperatures. It has been adapted by and to other countries in various forms. A plant may be described as "hardy to zone 10": this means that the plant can withstand a minimum temperature of 30 to 40 °F.