Use this planting calendar to find the best times of the year to grow fruits, vegetables, herbs, flowers, and other popular plants in Jefferson hills, PA, based on the USDA Hardiness Zone 6b.
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Jefferson hills, PA Frost Dates & Growing Season
Last Spring Frost Date for Jefferson hills, PA
The average last frost date in spring for Jefferson hills 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 Jefferson hills, PA
The average first frost date in fall for Jefferson hills is October 20th. 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 Jefferson hills, PA
Based on historical frost data, the estimated growing season length in Jefferson hills is approximately 177 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.
Jefferson hills, PA Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting your plants.
Jefferson hills, PA Monthly Planting Recommendations
February
In February, recommended activities include starting Pansy seeds indoors (from February 15th to March 1st), starting Petunia seeds indoors (from February 15th to March 1st), and starting Geranium seeds indoors (from February 15th to March 1st).
March
In March, recommended activities include direct sowing Sorrel (from March 29th to April 12th), direct sowing Arugula (from March 29th to April 12th), and starting Marigold seeds indoors (from March 15th to March 29th).
April
In April, recommended activities include starting Pumpkin seeds indoors (from April 5th to April 12th), direct sowing Fenugreek (from April 26th to May 10th), and direct sowing Dill (from April 12th to April 26th).
May
In May, recommended activities include direct sowing Cantaloupe (from May 3rd to May 17th), direct sowing Runner Bean (from May 3rd to May 17th), and direct sowing Black Bean (from May 10th to May 24th).