Coal Creek, CO Planting Calendar (What to Plant by Month)

Use this planting calendar to find the best times of the year to grow fruits, vegetables, herbs, flowers, and other popular plants in Coal creek, CO, based on the USDA Hardiness Zone 6a.

Coal creek, CO Frost Dates & Growing Season

Last Spring Frost Date for Coal creek, CO

The average last frost date in spring for Coal creek is May 15th. For gardeners planting sensitive crops like tomatoes, peppers, and basil, it is generally recommended to wait until May 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 Coal creek, CO

The average first frost date in fall for Coal creek is October 7th. 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 Coal creek, CO

Based on historical frost data, the estimated growing season length in Coal creek is approximately 145 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.

Coal creek, CO Planting Calendar

This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting your plants.

Legend: I = Start seed indoors S = Direct sow T = Transplant H = Harvest
Generating calendar...

Coal creek, CO Monthly Planting Recommendations

March

In March, recommended activities include starting Oregano seeds indoors (from March 20th to April 3rd), starting Coneflower seeds indoors (from March 20th to April 3rd), and starting Tomatillo seeds indoors (from March 20th to April 3rd).

April

In April, recommended activities include starting Pumpkin seeds indoors (from April 24th to May 1st), direct sowing Sorrel (from April 17th to May 1st), and direct sowing Alfalfa (from April 17th to May 1st).

May

In May, recommended activities include direct sowing Morning Glory (from May 22nd to June 5th), direct sowing Mung Bean (from May 29th to June 12th), and direct sowing Okra (from May 29th to June 12th).