Use this planting calendar to find the best times of the year to grow fruits, vegetables, herbs, flowers, and other popular plants in Waterville, WA, based on the USDA Hardiness Zone 6b.
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Waterville, WA Frost Dates & Growing Season
Last Spring Frost Date for Waterville, WA
The average last frost date in spring for Waterville is May 14th. For gardeners planting sensitive crops like tomatoes, peppers, and basil, it is generally recommended to wait until May 28th 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 Waterville, WA
The average first frost date in fall for Waterville is October 1st. 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 Waterville, WA
Based on historical frost data, the estimated growing season length in Waterville 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.
Waterville, WA Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting your plants.
Waterville, WA Monthly Planting Recommendations
March
In March, recommended activities include starting Lavender seeds indoors (from March 5th to March 19th), starting Cabbage seeds indoors (from March 19th to April 2nd), and starting Tomato seeds indoors (from March 19th to April 2nd).
April
In April, recommended activities include direct sowing Lentil (from April 30th to May 14th), direct sowing California Poppy (from April 16th to April 30th), and direct sowing Chives (from April 16th to April 30th).
May
In May, recommended activities include direct sowing Anise (from May 21st to May 28th), direct sowing Fenugreek (from May 14th to May 28th), and direct sowing Runner Bean (from May 21st to June 4th).