State Maps of USDA Zones for Plant Hardiness. Disclosure. If you see a hardiness zone in a gardening catalog or plant description, chances are it refers to this USDA map. Below is the USDA planting zones map, also known as the USDA Hardiness Zone map. Pin Alaska. So make sure you look to see which zones a plant can grow in before ordering. There are 11 planting zones on the USDA Plant Hardiness Map in the contiguous United States and southern Canada. This map was created in 2012 and is a great guide for gardeners to use to decide what plants they can grow and survive through the winter. If there is a master-gardener program in your area get a list of master gardeners and contact one or two of them. Or you can tell from the map below too. Vanessa Richins Myers. This data is based on the average annual minimum winter temperature divided into 10 degree Fahrenheit zones. You can bend the guidelines somewhat by planting in more sheltered areas, or if you live in a micro-climate. Allow the tool to use GPS to determine your location, then the map will show your planting zone. Submitted by Ann Wagner on February 8, 2012 - 10:30am. Vanessa Richins Myers. How to Use Your Planting Zone. The regions are defined by a 10-degree Fahrenheit difference in the average annual minimum temperature. As you might expect, parts of the state of Alaska lie in USDA planting zone 1. With minimum average temperatures between -60 to -50 degrees F, it can be a difficult zone for gardening. Stay tuned for the first newsletter in the morning, straight to your inbox. Each zone is divided into sections and each zone represents an area of PLANT HARDINESS ZONES for the plants of agriculture in that specific area and … If you are unsure what growing zone you are in, you can enter in your zip code in the tool at the top right of the website and it will tell you. USDA Plant Hardiness Zone 1 is the coldest zone designation for the United States. If you are unsure what growing zone you are in, you can enter in your zip code in the tool at the top right of the website and it will tell you. The USDA created a standard to which gardeners can use to determine which plants can survive in which locations. Parts of northern Minnesota are considered to be in planting zones 2 and 3. It’s interesting to see how the zone can shift just 10 miles away. Understanding the USDA planting zones you live in can mean the difference between success and failure in your garden. Enter your ZIP code in the search bar and click enter. To find your USDA Hardiness Zone, enter your zip code or use the map below. The majority of Zone 1 is located in Alaska. A planting zone in the United States usually refers to one of the USDA horticultural planting zones which, according to the USDA, "divides the United States and southern Canada into 11 areas of 10 degree F differences in the average annual minimum temperature." Thanks for sharing and. Learn about The Spruce's Editorial Process. Or you can tell from the map below too. The higher the numbers, the warmer the temperatures for gardening … Barley, Spring: Usual Planting and Harvesting Dates, by State State 1996 Harvested Acres (000) Usual Planting Dates Usual Harvesting Dates Begin Most Active End Begin Most Active End AK CA 1/ CO ID KS 2/ MI MN MT NE NV 1/ ND OR SD UT WA WI WY 6.9 200 92 730 25 520 1,200 17 5 2,600 150 145 100 440 75 120 May 5 Feb 20 Mar 15 Mar 24 Mar 1 Apr 15 Apr 16 Apr 7 Mar 20 Apr 5 Apr 21 Sep 1 Apr 6 Mar … States in Growing Zone 2. The US Department of Agriculture produces a garden planting zone map for gardeners based on the average of low temperature readings taken from weather stations throughout the United States. Interactive USDA Grow Zone Map Find Seeds Tool Plant Hardiness Find seeds and plants that grow in your zone (US & Canada). The cool- and warm-season vegetables are listed on the left, and the recommended planting dates make up the body of information in the chart. Use your mouse or touchscreen to drag and zoom the map and find your location, then click or tap the map. Planting zones are most useful to gardeners growing perennial plants, since perennials are meant to live beyond just one growing season. States in Growing Zone 3 But we recommend using the plant growing zones as your guide to decide what to plant outside. Planting plants, vegetables and flowers that are appropriate for your US growing zone will make sure that your garden is happy and healthy year after year. Below is the USDA planting zones map, also known as the USDA Hardiness Zone map. The idea is to give the garden industry a way to communicate the cold hardiness of landscape plants.