Use this planting calendar to find the best times of the year to grow fruits, vegetables, herbs, flowers, and other popular plants in Sun prairie, WI, based on the USDA Hardiness Zone 5b.
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Sun prairie, WI Frost Dates & Growing Season
Last Spring Frost Date for Sun prairie, WI
The average last frost date in spring for Sun prairie is May 4th. For gardeners planting sensitive crops like tomatoes, peppers, and basil, it is generally recommended to wait until May 18th 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 Sun prairie, WI
The average first frost date in fall for Sun prairie is October 8th. 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 Sun prairie, WI
Based on historical frost data, the estimated growing season length in Sun prairie is approximately 157 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.
Sun prairie, WI Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting your plants.
Sun prairie, WI Monthly Planting Recommendations
February
In February, recommended activities include starting Impatiens seeds indoors (from February 23rd to March 9th), starting Begonia seeds indoors (from February 23rd to March 9th), and starting Celery seeds indoors (from February 23rd to March 9th).
March
In March, recommended activities include starting Sage seeds indoors (from March 23rd to April 6th), starting Coneflower seeds indoors (from March 9th to March 23rd), and starting Tomatillo seeds indoors (from March 9th to March 23rd).
April
In April, recommended activities include direct sowing Chives (from April 6th to April 20th), direct sowing Fennel (from April 20th to May 4th), and direct sowing Milk Thistle (from April 20th to May 4th).
May
In May, recommended activities include direct sowing Lemon Balm (from May 4th to May 18th), direct sowing Jute (from May 18th to June 1st), and direct sowing Cucumber (from May 11th to May 25th).