Use this planting calendar to find the best times of the year to grow fruits, vegetables, herbs, flowers, and other popular plants in Coal city, IL, based on the USDA Hardiness Zone 5b.
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Coal city, IL Frost Dates & Growing Season
Last Spring Frost Date for Coal city, IL
The average last frost date in spring for Coal city is April 29th. For gardeners planting sensitive crops like tomatoes, peppers, and basil, it is generally recommended to wait until May 13th 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 Coal city, IL
The average first frost date in fall for Coal city is October 11th. 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 Coal city, IL
Based on historical frost data, the estimated growing season length in Coal city is approximately 165 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.
Coal city, IL Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting your plants.
Coal city, IL Monthly Planting Recommendations
February
In February, recommended activities include starting French Lavender seeds indoors (from February 18th to March 4th), starting Begonia seeds indoors (from February 18th to March 4th), and starting Snapdragon seeds indoors (from February 18th to March 4th).
March
In March, recommended activities include starting Luffa seeds indoors (from March 18th to April 1st), starting Brussel Sprout seeds indoors (from March 18th to April 1st), and direct sowing Pea (from March 18th to April 1st).
April
In April, recommended activities include direct sowing Watercress (from April 1st to April 15th), direct sowing Parsley (from April 1st to April 15th), and direct sowing Bok Choy (from April 1st to April 15th).
May
In May, recommended activities include direct sowing Corn (from May 13th to May 20th), direct sowing Butterfly Pea (from May 13th to May 27th), and direct sowing Chia (from May 13th to May 27th).