Sand Coulee, MT 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 Sand coulee, MT, based on the USDA Hardiness Zone 4b.

Sand coulee, MT Frost Dates & Growing Season

Last Spring Frost Date for Sand coulee, MT

The average last frost date in spring for Sand coulee is May 25th. For gardeners planting sensitive crops like tomatoes, peppers, and basil, it is generally recommended to wait until June 8th 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 Sand coulee, MT

The average first frost date in fall for Sand coulee 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 Sand coulee, MT

Based on historical frost data, the estimated growing season length in Sand coulee is approximately 123 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.

Sand coulee, MT 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...

Sand coulee, MT Monthly Planting Recommendations

March

In March, recommended activities include starting Pepper seeds indoors (from March 30th to April 13th), starting Impatiens seeds indoors (from March 16th to March 30th), and starting Begonia seeds indoors (from March 16th to March 30th).

April

In April, recommended activities include direct sowing Lettuce (from April 27th to May 11th), direct sowing Radish (from April 27th to May 11th), and direct sowing California Poppy (from April 27th to May 11th).

May

In May, recommended activities include direct sowing Calendula (from May 11th to May 25th), direct sowing Hyssop (from May 11th to May 25th), and direct sowing Gladiolus (from May 25th to June 8th).

June

In June, recommended activities include direct sowing Butterfly Pea (from June 8th to June 22nd), direct sowing Nasturtium (from June 1st to June 8th), and direct sowing Melon (from June 8th to June 22nd).