Bartlett, 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 Bartlett, IL, based on the USDA Hardiness Zone 6a.

Bartlett, IL Frost Dates & Growing Season

Last Spring Frost Date for Bartlett, IL

The average last frost date in spring for Bartlett is April 30th. For gardeners planting sensitive crops like tomatoes, peppers, and basil, it is generally recommended to wait until May 14th 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 Bartlett, IL

The average first frost date in fall for Bartlett is October 25th. 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 Bartlett, IL

Based on historical frost data, the estimated growing season length in Bartlett is approximately 178 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.

Bartlett, 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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Bartlett, IL Monthly Planting Recommendations

February

In February, recommended activities include starting Geranium seeds indoors (from February 19th to March 5th), starting Impatiens seeds indoors (from February 19th to March 5th), and starting Lavender seeds indoors (from February 19th to March 5th).

March

In March, recommended activities include starting Basil seeds indoors (from March 19th to April 2nd), starting Aubergine seeds indoors (from March 5th to March 19th), and starting Luffa seeds indoors (from March 19th to April 2nd).

April

In April, recommended activities include direct sowing Crimson Clover (from April 2nd to April 16th), direct sowing Parsley (from April 2nd to April 16th), and direct sowing Sweet Pea (from April 2nd to April 16th).

May

In May, recommended activities include direct sowing Lima Bean (from May 14th to May 28th), direct sowing Butterfly Pea (from May 14th to May 28th), and direct sowing Anise (from May 7th to May 14th).