Knowing your USDA hardiness zone and the date of the last frost in your location will help you decide what to grow and when to plant it in your area, depending on your climate.The state of Illinois is between Zones 5a and 7a on the climate map.You should be aware of whatever region of Illinois you are in since the hardiness zone varies from the northern half to the southern section of the state.Illinois is divided into four regions.
Planting zones in Illinois range from 5a to 7a, with the northern section of the state being at the lower end of the spectrum and the southern part being at the upper end.
What are the plant hardiness zones in Illinois?
The Plant Hardiness Zone Map, developed by the United States Department of Agriculture, divides the country into 13 zones to assist gardeners and producers in selecting the most appropriate plants for their climate.Illinois is about 400 miles long and has five hardiness zones: 5a, 5b, 6a, 6b, and 7a.The state is divided into four regions: the Midwest, the Midwest Plains, and the Midwest Plains.
How do I Find my Illinois garden zone?
It is necessary to look at the USDA plant hardiness zones chart in order to have a better understanding of Illinois growing zones. This website not only gives hardiness zones for all 50 states, but it also tells you what garden zone Illinois is located inside.
When did planting zones change in Illinois?
Because of climate change and rising temperatures, this map of Illinois growing zones is based on the 2012 revisions to the USDA planting zone classification system. When selecting plants for your garden, it is critical to understand your Illinois hardiness planting zones in order to select the most appropriate plants for your climate.
What zone is zone 6b in Illinois?
Zone 6b has temperatures ranging from -5°F to 0°F. Based on the USDA Hardiness Zone Map from 1990, this interactive version includes the state of Illinois, which spans USDA Zones 4b to 6b and falls between the two zones.