Use this planting calendar to find the best times of the year to grow fruits, vegetables, herbs, flowers, and other popular plants in Ouray, CO, based on the USDA Hardiness Zone 5b.
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Ouray, CO Frost Dates & Growing Season
Last Spring Frost Date for Ouray, CO
The average last frost date in spring for Ouray is June 4th. For gardeners planting sensitive crops like tomatoes, peppers, and basil, it is generally recommended to wait until June 18th 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 Ouray, CO
The average first frost date in fall for Ouray is September 25th. 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 Ouray, CO
Based on historical frost data, the estimated growing season length in Ouray is approximately 113 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.
Ouray, CO Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting your plants.
Ouray, CO Monthly Planting Recommendations
March
In March, recommended activities include starting Lavender seeds indoors (from March 26th to April 9th), starting Impatiens seeds indoors (from March 26th to April 9th), and starting Petunia seeds indoors (from March 26th to April 9th).
April
In April, recommended activities include starting Stevia seeds indoors (from April 9th to April 23rd), starting Aubergine seeds indoors (from April 9th to April 23rd), and starting Broccoli seeds indoors (from April 9th to April 23rd).
May
In May, recommended activities include direct sowing Garden Cress (from May 7th to May 21st), direct sowing Alfalfa (from May 7th to May 21st), and direct sowing German Chamomile (from May 21st to June 4th).
June
In June, recommended activities include direct sowing Black Bean (from June 18th to July 2nd), direct sowing Mung Bean (from June 18th to July 2nd), and direct sowing Corn (from June 18th to June 25th).