Jackson Lake, 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 Jackson lake, CO, based on the USDA Hardiness Zone 5a.

Jackson lake, CO Frost Dates & Growing Season

Last Spring Frost Date for Jackson lake, CO

The average last frost date in spring for Jackson lake is May 20th. For gardeners planting sensitive crops like tomatoes, peppers, and basil, it is generally recommended to wait until June 3rd 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 Jackson lake, CO

The average first frost date in fall for Jackson lake 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 Jackson lake, CO

Based on historical frost data, the estimated growing season length in Jackson lake is approximately 128 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.

Jackson lake, 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...

Jackson lake, CO Monthly Planting Recommendations

March

In March, recommended activities include starting Begonia seeds indoors (from March 11th to March 25th), starting Geranium seeds indoors (from March 11th to March 25th), and starting Petunia seeds indoors (from March 11th to March 25th).

April

In April, recommended activities include direct sowing Lettuce (from April 22nd to May 6th), starting Sage seeds indoors (from April 8th to April 22nd), and direct sowing Alfalfa (from April 22nd to May 6th).

May

In May, recommended activities include direct sowing Milk Thistle (from May 6th to May 20th), direct sowing Gladiolus (from May 20th to June 3rd), and direct sowing Hyssop (from May 6th to May 20th).

June

In June, recommended activities include direct sowing Melon (from June 3rd to June 17th), direct sowing Chia (from June 3rd to June 17th), and direct sowing Okra (from June 3rd to June 17th).