How to Protect Plants from Frost When the temperatures start dropping below 40 degrees, it is time to consider bringing in or covering cold-sensitive plants for protection from frost damage if possible because not all plants are created equal. Ways to Protect Plants from Frost Damage You can begin by purchasing tightknit blankets and comforters from thrift shops if you haven’t saved your old stained and damaged ones in plastic garbage bags for just such a purpose. Plastic that comes in contact with leaves will transfer cold and cause damage, so unless you have a barrier between the plastic and the plant, only use it as a last resort knowing that the outer leaves and branches will probably be damaged. Materials such as Afghans that are loosely woven provide little protectio...
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