Use this planting calendar to find the best times of the year to grow fruits, vegetables, herbs, flowers, and other popular plants in Grant park, IL, based on the USDA Hardiness Zone 5b.
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Grant park, IL Frost Dates & Growing Season
Last Spring Frost Date for Grant park, IL
The average last frost date in spring for Grant park 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 Grant park, IL
The average first frost date in fall for Grant park is October 12th. 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 Grant park, IL
Based on historical frost data, the estimated growing season length in Grant park is approximately 166 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.
Grant park, IL Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting your plants.
Grant park, IL Monthly Planting Recommendations
February
In February, recommended activities include starting Lavender seeds indoors (from February 18th to March 4th), starting Petunia seeds indoors (from February 18th to March 4th), and starting Onion seeds indoors (from February 18th to March 4th).
March
In March, recommended activities include starting Moonflower seeds indoors (from March 18th to April 1st), starting Oregano seeds indoors (from March 4th to March 18th), and starting Aubergine seeds indoors (from March 4th to March 18th).
April
In April, recommended activities include direct sowing Gladiolus (from April 29th to May 13th), direct sowing Chives (from April 1st to April 15th), and direct sowing Kale (from April 1st to April 15th).
May
In May, recommended activities include direct sowing Butternut Squash (from May 6th to May 20th), direct sowing Okra (from May 13th to May 27th), and direct sowing Cucumber (from May 6th to May 20th).