Use this planting calendar to find the best times of the year to grow fruits, vegetables, herbs, flowers, and other popular plants in Sisters, OR, based on the USDA Hardiness Zone 6b.
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Sisters, OR Frost Dates & Growing Season
Last Spring Frost Date for Sisters, OR
The average last frost date in spring for Sisters is June 18th. For gardeners planting sensitive crops like tomatoes, peppers, and basil, it is generally recommended to wait until July 2nd 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 Sisters, OR
The average first frost date in fall for Sisters is September 10th. 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 Sisters, OR
Based on historical frost data, the estimated growing season length in Sisters is approximately 84 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.
Sisters, OR Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting your plants.
Sisters, OR Monthly Planting Recommendations
April
In April, recommended activities include starting Pepper seeds indoors (from April 23rd to May 7th), starting Ground Cherry seeds indoors (from April 23rd to May 7th), and starting Broccoli seeds indoors (from April 23rd to May 7th).
May
In May, recommended activities include direct sowing Watercress (from May 21st to June 4th), direct sowing Pea (from May 7th to May 21st), and direct sowing Spinach (from May 7th to May 21st).
June
In June, recommended activities include direct sowing Beet (from June 4th to June 18th), direct sowing Cucumber (from June 25th to July 9th), and direct sowing Lemon Balm (from June 18th to July 2nd).
July
In July, recommended activities include direct sowing Lima Bean (from July 2nd to July 16th) and direct sowing Okra (from July 2nd to July 16th).