Use this planting calendar to find the best times of the year to grow fruits, vegetables, herbs, flowers, and other popular plants in Denver, MO, based on the USDA Hardiness Zone 6a.
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Denver, MO Frost Dates & Growing Season
Last Spring Frost Date for Denver, MO
The average last frost date in spring for Denver is April 26th. For gardeners planting sensitive crops like tomatoes, peppers, and basil, it is generally recommended to wait until May 10th 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 Denver, MO
The average first frost date in fall for Denver is October 10th. 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 Denver, MO
Based on historical frost data, the estimated growing season length in Denver is approximately 167 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.
Denver, MO Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting your plants.
Denver, MO Monthly Planting Recommendations
February
In February, recommended activities include starting Leek seeds indoors (from February 15th to March 1st), starting French Lavender seeds indoors (from February 15th to March 1st), and starting Snapdragon seeds indoors (from February 15th to March 1st).
March
In March, recommended activities include direct sowing Potato (from March 29th to April 12th), starting Ground Cherry seeds indoors (from March 1st to March 15th), and starting Black Eyed Susan seeds indoors (from March 1st to March 15th).
April
In April, recommended activities include direct sowing Swiss Chard (from April 12th to April 26th), direct sowing German Chamomile (from April 12th to April 26th), and direct sowing Calendula (from April 12th to April 26th).
May
In May, recommended activities include direct sowing Anise (from May 3rd to May 10th), direct sowing Melon (from May 10th to May 24th), and direct sowing Jute (from May 10th to May 24th).