Use this planting calendar to find the best times of the year to grow fruits, vegetables, herbs, flowers, and other popular plants in Ritzville, WA, based on the USDA Hardiness Zone 6b.
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Ritzville, WA Frost Dates & Growing Season
Last Spring Frost Date for Ritzville, WA
The average last frost date in spring for Ritzville is May 8th. For gardeners planting sensitive crops like tomatoes, peppers, and basil, it is generally recommended to wait until May 22nd 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 Ritzville, WA
The average first frost date in fall for Ritzville 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 Ritzville, WA
Based on historical frost data, the estimated growing season length in Ritzville is approximately 152 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.
Ritzville, WA Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting your plants.
Ritzville, WA Monthly Planting Recommendations
February
In February, recommended activities include starting Petunia seeds indoors (from February 27th to March 13th), starting Snapdragon seeds indoors (from February 27th to March 13th), and starting Onion seeds indoors (from February 27th to March 13th).
March
In March, recommended activities include starting Brussel Sprout seeds indoors (from March 27th to April 10th), starting Moonflower seeds indoors (from March 27th to April 10th), and starting Statice seeds indoors (from March 13th to March 27th).
April
In April, recommended activities include direct sowing Milk Thistle (from April 24th to May 8th), direct sowing Flax (from April 10th to April 24th), and direct sowing Mustard (from April 10th to April 24th).
May
In May, recommended activities include direct sowing Anise (from May 15th to May 22nd), direct sowing Pumpkin (from May 15th to May 29th), and direct sowing Sesame (from May 22nd to June 5th).