Answer: An easy way to keep them covered is with fabric row covers supported by wire hoops. It's best to use fabric rather than plastic, since the fabric breathes. These fabrics are available from many mail order sources and garden centers. You can cover an entire row, and leave them covered until conditions warm up. Fabric doesn't usually protect plants if temperatures drop lower than 28F. For added heat collection, place plastic milk jugs, filled with water and painted black, around the plants. They'll collect solar heat during the day and radiate it out at night. Hope this helps!
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