Use this planting calendar to find the best times of the year to grow fruits, vegetables, herbs, flowers, and other popular plants in Alta, UT, based on the USDA Hardiness Zone 5b.
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Alta, UT Frost Dates & Growing Season
Last Spring Frost Date for Alta, UT
The average last frost date in spring for Alta is July 1st. For gardeners planting sensitive crops like tomatoes, peppers, and basil, it is generally recommended to wait until July 15th 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 Alta, UT
The average first frost date in fall for Alta is September 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 Alta, UT
Based on historical frost data, the estimated growing season length in Alta is approximately 62 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.
Alta, UT Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting your plants.
Alta, UT Monthly Planting Recommendations
May
In May, recommended activities include starting Marigold seeds indoors (from May 20th to June 3rd), starting Coleus seeds indoors (from May 6th to May 20th), and starting Kale seeds indoors (from May 20th to June 3rd).
June
In June, recommended activities include direct sowing Arugula (from June 3rd to June 17th), direct sowing Beet (from June 17th to July 1st), and direct sowing Lettuce (from June 3rd to June 17th).
July
In July, recommended activities include direct sowing Cucumber (from July 8th to July 22nd), direct sowing Zucchini (from July 8th to July 22nd), and direct sowing Cosmos (from July 8th to July 15th).