Use this planting calendar to find the best times of the year to grow fruits, vegetables, herbs, flowers, and other popular plants in Cary, IL, based on the USDA Hardiness Zone 5b.
On this page:
Cary, IL Frost Dates & Growing Season
Last Spring Frost Date for Cary, IL
The average last frost date in spring for Cary is May 3rd. For gardeners planting sensitive crops like tomatoes, peppers, and basil, it is generally recommended to wait until May 17th before moving plants outdoors. Waiting these extra few weeks significantly reduces the risk of a late freeze damaging young transplants.
First Fall Frost Date for Cary, IL
The average first frost date in fall for Cary is October 13th. This date marks the approximate end of the growing season for tender plants. Gardeners should plan to harvest frost-sensitive vegetables or provide heavy protection (such as row covers) before this date to avoid crop loss.
Growing Season Length in Cary, IL
Based on historical frost data, the estimated growing season length in Cary is approximately 163 days. This duration determines which vegetable varieties have enough time to reach maturity before the winter cold sets in. Short-season varieties are recommended for crops that require a longer warm period.
Please note: These dates are climatological averages. Actual weather conditions vary by year. Always check the local 10-day forecast before planting.
Cary, IL Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting your plants.
Cary, IL Monthly Planting Recommendations
February
In February, recommended activities include starting French Lavender seeds indoors (from February 22nd to March 8th), starting Snapdragon seeds indoors (from February 22nd to March 8th), and starting Celery seeds indoors (from February 22nd to March 8th).
March
In March, recommended activities include starting Aubergine seeds indoors (from March 8th to March 22nd), starting Black Eyed Susan seeds indoors (from March 8th to March 22nd), and starting Pepper seeds indoors (from March 8th to March 22nd).
April
In April, recommended activities include direct sowing Milk Thistle (from April 19th to May 3rd), direct sowing Lentil (from April 19th to May 3rd), and direct sowing Watercress (from April 5th to April 19th).
May
In May, recommended activities include direct sowing Watermelon (from May 17th to May 31st), direct sowing Lemon Balm (from May 3rd to May 17th), and direct sowing Jute (from May 17th to May 31st).