Use this planting calendar to find the best times of the year to grow fruits, vegetables, herbs, flowers, and other popular plants in Harrisville, RI, based on the USDA Hardiness Zone 6a.
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Harrisville, RI Frost Dates & Growing Season
Last Spring Frost Date for Harrisville, RI
The average last frost date in spring for Harrisville is February 5th. For gardeners planting sensitive crops like tomatoes, peppers, and basil, it is generally recommended to wait until February 19th 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 Harrisville, RI
The average first frost date in fall for Harrisville 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 Harrisville, RI
Based on historical frost data, the estimated growing season length in Harrisville is approximately 242 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.
Harrisville, RI Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting your plants.
Harrisville, RI Monthly Planting Recommendations
January
In January, recommended activities include starting Pumpkin seeds indoors (from January 15th to January 22nd), direct sowing Mustard (from January 8th to January 22nd), and direct sowing Sorrel (from January 8th to January 22nd).
February
In February, recommended activities include direct sowing Gladiolus (from February 5th to February 19th), direct sowing Watermelon (from February 19th to March 5th), and direct sowing Zucchini (from February 12th to February 26th).
November
In November, recommended activities include starting French Lavender seeds indoors (from November 27th to December 11th), starting Snapdragon seeds indoors (from November 27th to December 11th), and starting Petunia seeds indoors (from November 27th to December 11th).
December
In December, recommended activities include starting Aubergine seeds indoors (from December 11th to December 25th), starting Oregano seeds indoors (from December 11th to December 25th), and starting Stevia seeds indoors (from December 11th to December 25th).