Use this planting calendar to find the best times of the year to grow fruits, vegetables, herbs, flowers, and other popular plants in Radnor, OH, based on the USDA Hardiness Zone 6a.
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Radnor, OH Frost Dates & Growing Season
Last Spring Frost Date for Radnor, OH
The average last frost date in spring for Radnor is March 5th. For gardeners planting sensitive crops like tomatoes, peppers, and basil, it is generally recommended to wait until March 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 Radnor, OH
The average first frost date in fall for Radnor is October 15th. 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 Radnor, OH
Based on historical frost data, the estimated growing season length in Radnor is approximately 224 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.
Radnor, OH Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting your plants.
Radnor, OH Monthly Planting Recommendations
January
In January, recommended activities include starting Coneflower seeds indoors (from January 8th to January 22nd), starting Marigold seeds indoors (from January 22nd to February 5th), and starting Tomato seeds indoors (from January 8th to January 22nd).
February
In February, recommended activities include direct sowing Hyssop (from February 19th to March 5th), direct sowing Dill (from February 19th to March 5th), and direct sowing Quinoa (from February 19th to March 5th).
March
In March, recommended activities include direct sowing Sesame (from March 19th to April 2nd), direct sowing Mung Bean (from March 19th to April 2nd), and direct sowing Cosmos (from March 12th to March 19th).
December
In December, recommended activities include starting Celery seeds indoors (from December 25th to January 8th), starting Geranium seeds indoors (from December 25th to January 8th), and starting Artichoke seeds indoors (from December 25th to January 8th).