Use this planting calendar to find the best times of the year to grow fruits, vegetables, herbs, flowers, and other popular plants in Twisp, WA, based on the USDA Hardiness Zone 6a.
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Twisp, WA Frost Dates & Growing Season
Last Spring Frost Date for Twisp, WA
The average last frost date in spring for Twisp is May 6th. For gardeners planting sensitive crops like tomatoes, peppers, and basil, it is generally recommended to wait until May 20th 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 Twisp, WA
The average first frost date in fall for Twisp is October 4th. 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 Twisp, WA
Based on historical frost data, the estimated growing season length in Twisp is approximately 151 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.
Twisp, WA Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting your plants.
Twisp, WA Monthly Planting Recommendations
February
In February, recommended activities include starting Celery seeds indoors (from February 25th to March 11th), starting Impatiens seeds indoors (from February 25th to March 11th), and starting Snapdragon seeds indoors (from February 25th to March 11th).
March
In March, recommended activities include starting Moonflower seeds indoors (from March 25th to April 8th), starting Broccoli seeds indoors (from March 11th to March 25th), and starting Pepper seeds indoors (from March 11th to March 25th).
April
In April, recommended activities include direct sowing Alyssum (from April 22nd to May 6th), direct sowing Flax (from April 8th to April 22nd), and direct sowing Crimson Clover (from April 8th to April 22nd).
May
In May, recommended activities include direct sowing Sesame (from May 20th to June 3rd), direct sowing Lima Bean (from May 20th to June 3rd), and direct sowing Zinnia (from May 13th to May 27th).