PHOENIXVILLE, PA — The gardening season is winding down in much of the United States with the arrival of meteorological fall, but the date to keep in mind in Radnor is Oct. 25.
That’s the average date of the first frost in Phoenixville according to The Old Farmer’s Almanac, a time-tested publication offering a blend of long-range weather predictions mixed with humor and advice on gardening, cooking, fishing, conservation and other topics.
With its by-ZIP-code search tool, Old Farmer’s Almanac makes it easy for gardeners to figure out when they’re most likely to start losing plants to frost.
In a light freeze of 29 to 32 degrees Fahrenheit, tender plants are killed. A moderate freeze, which occurs when temperatures dip to 25 F to 28 F., causes more damage. Most garden plants can’t survive a severe freeze, which occurs at 24 F. and colder, according to The Old Farmer’s Almanac.
As Oct. 25 approaches, Pennsylvania gardeners should keep an eye on local weather forecasts.
The average date of the first frost is an estimate based on historical climate data from the National Oceanic and Atmospheric Administration’s National Centers for Environmental Information. The probability of a frost occurring before the first frost date is around 30 percent.
You may be able to squeeze more life from plants by protecting them when overnight temperatures dip into the frost-danger zone. Some early fall favorites, such as pumpkins, tomatoes, sweet corn, watermelon and others, can be damaged at 33 F., according to the publication.
The best way to protect plants from frost is to cover them with a blanket, bedsheet or some type of row cover. Drape them loosely over the plants, and anchor with them bricks or rocks.
The Old Farmer’s Almanac has more tips, as well as a vegetable-specific guide to frost dates.
If you invested in hibiscus and other tropical plants, Boston ferns, geraniums and others for your deck, these ornamentals and herbs can overwinter inside.
The Old Farmer’s Almanac spells out what to do — it depends on the variety of plant — but in general, give them as much light and humidity as possible, keep them away from heat ducts and expose them to artificial light if necessary.
Take care of this before the first frost. Regardless of the plant, you’ll want to check for aphids and other insects. Spraying a 1 percent solution of Dawn dishwashing detergent (original) can do the trick. For best results, mix 2½ tablespoons of detergent in 1 gallon of water.
Bulbs, tubers and corms, such as cannas, dahlias and some lilies, can overwinter in the basement or garage. Just cut back the foliage, gently dig up the bulb and store the dried roots in a cool, dark spot, such as a basement.
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October 01, 2022 at 05:32PM
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When Does The 1st Frost Occur In Pennsylvania: How To Protect Plants - Patch
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