Illinois Planting Zones & Schedule

Illinois’s USDA growing zones range from Zone 5 in the north to Zone 7 in the south, offering a mix of cool and moderate growing conditions. Northern areas, including cities like Rockford and Chicago, fall into Zone 5, where shorter growing seasons favor hardy crops such as carrots, lettuce, and peas.

Moving south through the state, the climate becomes milder. Central Illinois transitions into Zone 6, and the southern region falls into Zone 7, allowing for a longer growing season ideal for tomatoes, peppers, and squash.

 

Illinois Last & First Frost Dates

  • *Keep in mind that frost can occur before or after these dates. Watch your local weather to determine the best time to plant.

  • The growing season in Illinois averages 160 days in the northern parts of the state and increases to about 190 days in the south. Refer to the planting schedules below to determine the best timing for your zone.

Zone 5 Planting Schedule

Zone 6 Planting Schedule

Zone 7 Planting Schedule