Use this planting calendar to find the best times of the year to grow fruits, vegetables, herbs, flowers, and other popular plants in Bonnie, IL, based on the USDA Hardiness Zone 6b.
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Bonnie, IL Frost Dates & Growing Season
Last Spring Frost Date for Bonnie, IL
The average last frost date in spring for Bonnie is April 17th. For gardeners planting sensitive crops like tomatoes, peppers, and basil, it is generally recommended to wait until May 1st 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 Bonnie, IL
The average first frost date in fall for Bonnie is October 20th. 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 Bonnie, IL
Based on historical frost data, the estimated growing season length in Bonnie is approximately 186 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.
Bonnie, IL Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting your plants.
Bonnie, IL Monthly Planting Recommendations
February
In February, recommended activities include starting Thyme seeds indoors (from February 20th to March 6th), starting French Lavender seeds indoors (from February 6th to February 20th), and starting Statice seeds indoors (from February 20th to March 6th).
March
In March, recommended activities include direct sowing Flax (from March 20th to April 3rd), direct sowing Chervil (from March 20th to April 3rd), and direct sowing Chives (from March 20th to April 3rd).
April
In April, recommended activities include direct sowing Calendula (from April 3rd to April 17th), direct sowing Sunflower (from April 24th to May 8th), and direct sowing Fennel (from April 3rd to April 17th).
May
In May, recommended activities include direct sowing Melon (from May 1st to May 15th), direct sowing Lima Bean (from May 1st to May 15th), and direct sowing Black Bean (from May 1st to May 15th).