Use this planting calendar to find the best times of the year to grow fruits, vegetables, herbs, flowers, and other popular plants in St george, UT, based on the USDA Hardiness Zone 8b.
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St george, UT Frost Dates & Growing Season
Last Spring Frost Date for St george, UT
The average last frost date in spring for St george is April 15th. For gardeners planting sensitive crops like tomatoes, peppers, and basil, it is generally recommended to wait until April 29th 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 george, UT
The average first frost date in fall for St george is November 1st. 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 george, UT
Based on historical frost data, the estimated growing season length in St george is approximately 200 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 george, UT Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting your plants.
St george, UT Monthly Planting Recommendations
February
In February, recommended activities include starting Aubergine seeds indoors (from February 18th to March 4th), starting Petunia seeds indoors (from February 4th to February 18th), and starting Geranium seeds indoors (from February 4th to February 18th).
March
In March, recommended activities include direct sowing Chives (from March 18th to April 1st), direct sowing Radish (from March 18th to April 1st), and starting Sage seeds indoors (from March 4th to March 18th).
April
In April, recommended activities include direct sowing Gladiolus (from April 15th to April 29th), direct sowing Black Bean (from April 29th to May 13th), and direct sowing Butternut Squash (from April 22nd to May 6th).