The average low temperatures for zone 1 are -60 to -50, for zone 2 they are -50 to -40, for zone 3 they are -40 to -30, for zone 4 they are -30 to -20, for zone 5 they are -20 to -10, for zone 6 they are -10 to 0, for zone 7 they are 0 to 10, for zone 8 they are 10 to 20, for zone 9 they are 20 to 30, for zone 10 it's 30 to 40 , for zone 11 they are from 40 to 50, for. Understanding the USDA planting areas where you live can mean the difference between success and failure in your garden. Plant vegetables, flowers, and other plants that are appropriate for your U.S. growing area.
In the US, it will ensure that your garden is happy and healthy year after year. Read more articles about USDA planting areas. Explore our most popular gardening guides. That's where hardiness zones come in: they list the lowest average temperature in each area of the country, so gardeners can select perennials that will survive the type of winters common in specific regions.
If you are not sure what growing area you are in, you can enter your zip code in the tool at the top right of the website and it will tell you. Gardeners need a way to compare the climate in their garden to the climate in which a plant is known to grow well. The USDA created a standard that gardeners can use to determine which plants can survive in which locations. However, some of the changes in zones are the result of new and more sophisticated methods for mapping zones between weather stations.
Not all endurance maps, such as the Arbor Day map, list the 13 zones and may not include breakdowns “a” and “b”, but they have a relatively similar design. Now that you have used this page to find your hardiness zone, when you are buying plants, check the plant label and a zone range will almost always appear in the list. Based on ten-year minimum average winter temperatures, maps of plant hardiness zones have been progressively developed, first by the Department of Agriculture (USDA) for the United States and then applied more or less to the rest of the planet. For example, if you're in zone 6, plants that are in zone 5-8 will survive your winters well.
To take a closer look at the different regions, the USDA offers an interactive tool that allows users to view a compilation of hardiness zones in one of the five general regions of the contiguous states. The USDA plant hardiness zone map consists of 13 individual zones that cover the entire contiguous United States, plus Alaska, Hawaii, and Puerto Rico. The USDA map is the map trusted by most gardeners in the eastern United States, and the one currently used by most national garden magazines, catalogs, books, websites, and nurseries. If you see a hardiness zone in a garden catalog or in a plant description, you're likely referring to this USDA map.
To help develop the new map, the USDA and OSU requested that horticulture and climate experts review the areas of their geographical area, and the test versions of the new map were revised based on their expert feedback. If you know your hardiness zone, find the best plants or interesting garden ideas for your geographical area. Hardiness zone maps are essential to helping gardeners choose plants, but they are not all-inclusive categories.