Use this planting calendar to find the best times of the year to grow fruits, vegetables, herbs, flowers, and other popular plants in Benson, IL, based on the USDA Hardiness Zone 5b.
On this page:
Benson, IL Frost Dates & Growing Season
Last Spring Frost Date for Benson, IL
The average last frost date in spring for Benson is April 26th. For gardeners planting sensitive crops like tomatoes, peppers, and basil, it is generally recommended to wait until May 10th 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 Benson, IL
The average first frost date in fall for Benson is October 15th. 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 Benson, IL
Based on historical frost data, the estimated growing season length in Benson is approximately 172 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.
Benson, IL Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting your plants.
Benson, IL Monthly Planting Recommendations
February
In February, recommended activities include starting French Lavender seeds indoors (from February 15th to March 1st), starting Impatiens seeds indoors (from February 15th to March 1st), and starting Lavender seeds indoors (from February 15th to March 1st).
March
In March, recommended activities include starting Tomato seeds indoors (from March 1st to March 15th), starting Marigold seeds indoors (from March 15th to March 29th), and direct sowing Crimson Clover (from March 29th to April 12th).
April
In April, recommended activities include direct sowing Cilantro (from April 12th to May 10th), direct sowing German Chamomile (from April 12th to April 26th), and direct sowing Babys Breath (from April 26th to May 10th).
May
In May, recommended activities include direct sowing Sunflower (from May 3rd to May 17th), direct sowing Butterfly Pea (from May 10th to May 24th), and direct sowing Nasturtium (from May 3rd to May 10th).