Twin Falls, ID 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 Twin falls, ID, based on the USDA Hardiness Zone 6b.

Twin falls, ID Frost Dates & Growing Season

Last Spring Frost Date for Twin falls, ID

The average last frost date in spring for Twin falls is May 18th. For gardeners planting sensitive crops like tomatoes, peppers, and basil, it is generally recommended to wait until June 1st 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 Twin falls, ID

The average first frost date in fall for Twin falls is October 5th. 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 Twin falls, ID

Based on historical frost data, the estimated growing season length in Twin falls is approximately 140 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.

Twin falls, ID 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...

Twin falls, ID Monthly Planting Recommendations

March

In March, recommended activities include starting Pepper seeds indoors (from March 23rd to April 6th), starting Oregano seeds indoors (from March 23rd to April 6th), and starting Cauliflower seeds indoors (from March 23rd to April 6th).

April

In April, recommended activities include direct sowing Poppy (from April 20th to May 4th), direct sowing Alfalfa (from April 20th to May 4th), and direct sowing Sorrel (from April 20th to May 4th).

May

In May, recommended activities include direct sowing Calendula (from May 4th to May 18th), direct sowing Swiss Chard (from May 4th to May 18th), and direct sowing Fennel (from May 4th to May 18th).

June

In June, recommended activities include direct sowing Jute (from June 1st to June 15th), direct sowing Lima Bean (from June 1st to June 15th), and direct sowing Sesame (from June 1st to June 15th).