Use this planting calendar to find the best times of the year to grow fruits, vegetables, herbs, flowers, and other popular plants in St mary, MO, based on the USDA Hardiness Zone 6b.
On this page:
St mary, MO Frost Dates & Growing Season
Last Spring Frost Date for St mary, MO
The average last frost date in spring for St mary is April 18th. For gardeners planting sensitive crops like tomatoes, peppers, and basil, it is generally recommended to wait until May 2nd 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 St mary, MO
The average first frost date in fall for St mary 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 St mary, MO
Based on historical frost data, the estimated growing season length in St mary is approximately 185 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.
St mary, MO Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting your plants.
St mary, MO Monthly Planting Recommendations
February
In February, recommended activities include starting Artichoke seeds indoors (from February 7th to February 21st), starting Ground Cherry seeds indoors (from February 21st to March 7th), and starting French Lavender seeds indoors (from February 7th to February 21st).
March
In March, recommended activities include starting Marigold seeds indoors (from March 7th to March 21st), direct sowing Watercress (from March 21st to April 4th), and starting Luffa seeds indoors (from March 7th to March 21st).
April
In April, recommended activities include direct sowing Gladiolus (from April 18th to May 2nd), direct sowing Runner Bean (from April 25th to May 9th), and direct sowing Nasturtium (from April 25th to May 2nd).
May
In May, recommended activities include direct sowing Black Bean (from May 2nd to May 16th), direct sowing Jute (from May 2nd to May 16th), and direct sowing Okra (from May 2nd to May 16th).