Use this planting calendar to find the best times of the year to grow fruits, vegetables, herbs, flowers, and other popular plants in Superior, WY, based on the USDA Hardiness Zone 5a.
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Superior, WY Frost Dates & Growing Season
Last Spring Frost Date for Superior, WY
The average last frost date in spring for Superior is June 8th. For gardeners planting sensitive crops like tomatoes, peppers, and basil, it is generally recommended to wait until June 22nd 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 Superior, WY
The average first frost date in fall for Superior is September 15th. 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 Superior, WY
Based on historical frost data, the estimated growing season length in Superior is approximately 99 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.
Superior, WY Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting your plants.
Superior, WY Monthly Planting Recommendations
March
In March, recommended activities include starting Snapdragon seeds indoors (from March 30th to April 13th), starting Petunia seeds indoors (from March 30th to April 13th), and starting Pansy seeds indoors (from March 30th to April 13th).
April
In April, recommended activities include starting Broccoli seeds indoors (from April 13th to April 27th), starting Sage seeds indoors (from April 27th to May 11th), and starting Thyme seeds indoors (from April 13th to April 27th).
May
In May, recommended activities include direct sowing Lettuce (from May 11th to May 25th), direct sowing Alfalfa (from May 11th to May 25th), and direct sowing Garden Cress (from May 11th to May 25th).
June
In June, recommended activities include direct sowing Mung Bean (from June 22nd to July 6th), direct sowing Watermelon (from June 22nd to July 6th), and direct sowing Zinnia (from June 15th to June 29th).