What is what zone is illinois for planting?

Illinois is divided into various planting zones depending on the local climatic conditions. According to the United States Department of Agriculture (USDA) Plant Hardiness Zone Map, Illinois falls within Zones 5a to 7a. Zone 5a is the coldest zone where winter temperatures can range from -20 to -15 degrees Fahrenheit, while Zone 7a is the warmest zone where winter temperatures can range from 0 to 5 degrees Fahrenheit. These zones are important for gardeners and farmers as they provide guidance on which plants would thrive in that particular climate. It is recommended to select plants that are suitable for the specific zone in which they will be planted.