Clayton, IL Planting Calendar (What to Plant by Month)

Use this planting calendar to find the best times of the year to grow fruits, vegetables, herbs, flowers, and other popular plants in Clayton, IL, based on the USDA Hardiness Zone 6a.

Clayton, IL Frost Dates & Growing Season

Last Spring Frost Date for Clayton, IL

The average last frost date in spring for Clayton is April 15th. For gardeners planting sensitive crops like tomatoes, peppers, and basil, it is generally recommended to wait until April 29th 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 Clayton, IL

The average first frost date in fall for Clayton 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 Clayton, IL

Based on historical frost data, the estimated growing season length in Clayton is approximately 188 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.

Clayton, IL Planting Calendar

This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting your plants.

Legend: I = Start seed indoors S = Direct sow T = Transplant H = Harvest
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Clayton, IL Monthly Planting Recommendations

February

In February, recommended activities include starting Ground Cherry seeds indoors (from February 18th to March 4th), starting Celery seeds indoors (from February 4th to February 18th), and starting Cabbage seeds indoors (from February 18th to March 4th).

March

In March, recommended activities include direct sowing Potato (from March 18th to April 1st), direct sowing Poppy (from March 18th to April 1st), and starting Pumpkin seeds indoors (from March 25th to April 1st).

April

In April, recommended activities include direct sowing Okra (from April 29th to May 13th), direct sowing Black Bean (from April 29th to May 13th), and direct sowing Fenugreek (from April 15th to April 29th).