Use this planting calendar to find the best times of the year to grow fruits, vegetables, herbs, flowers, and other popular plants in Fort thompson, SD, based on the USDA Hardiness Zone 5a.
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Fort thompson, SD Frost Dates & Growing Season
Last Spring Frost Date for Fort thompson, SD
The average last frost date in spring for Fort thompson 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 Fort thompson, SD
The average first frost date in fall for Fort thompson is October 6th. 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 Fort thompson, SD
Based on historical frost data, the estimated growing season length in Fort thompson is approximately 155 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.
Fort thompson, SD Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting your plants.
Fort thompson, SD Monthly Planting Recommendations
February
In February, recommended activities include starting Leek seeds indoors (from February 23rd to March 9th), starting French Lavender seeds indoors (from February 23rd to March 9th), and starting Geranium seeds indoors (from February 23rd to March 9th).
March
In March, recommended activities include direct sowing Pea (from March 23rd to April 6th), starting Black Eyed Susan 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 Quinoa (from April 20th to May 4th), direct sowing Carrot (from April 13th to April 27th), and direct sowing California Poppy (from April 6th to April 20th).
May
In May, recommended activities include direct sowing Morning Glory (from May 11th to May 25th), direct sowing Gladiolus (from May 4th to May 18th), and direct sowing Watermelon (from May 18th to June 1st).