Use this planting calendar to find the best times of the year to grow fruits, vegetables, herbs, flowers, and other popular plants in Cornwall, PA, based on the USDA Hardiness Zone 6b.
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Cornwall, PA Frost Dates & Growing Season
Last Spring Frost Date for Cornwall, PA
The average last frost date in spring for Cornwall is April 26th. For gardeners planting sensitive crops like tomatoes, peppers, and basil, it is generally recommended to wait until May 10th 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 Cornwall, PA
The average first frost date in fall for Cornwall is October 16th. 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 Cornwall, PA
Based on historical frost data, the estimated growing season length in Cornwall is approximately 173 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.
Cornwall, PA Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting your plants.
Cornwall, PA Monthly Planting Recommendations
February
In February, recommended activities include starting Impatiens seeds indoors (from February 15th to March 1st), starting Celery seeds indoors (from February 15th to March 1st), and starting Petunia seeds indoors (from February 15th to March 1st).
March
In March, recommended activities include direct sowing Potato (from March 29th to April 12th), direct sowing Sweet Pea (from March 29th to April 12th), and direct sowing Radish (from March 29th to April 12th).
April
In April, recommended activities include direct sowing Cilantro (from April 12th to May 10th), direct sowing Dill (from April 12th to April 26th), and direct sowing Fenugreek (from April 26th to May 10th).
May
In May, recommended activities include direct sowing Black Bean (from May 10th to May 24th), direct sowing Watermelon (from May 10th to May 24th), and direct sowing Moss Rose (from May 3rd to May 17th).