![]() Ensure air circulation and be sure to remove the covers during the heat of the day, reapplying in the early evening.Īdding a 2- to 4-inch layer of mulch, particularly in the afternoon while the soil is warm, can help protect roots from overnight dips in temperature. Whatever type of cover you choose, make it breathable. You can use old sheets or drop cloths (using supports to keep the cover from touching the plants), burlap, row covers made of non-woven polyester, or cloches. ![]() Even cool-season crops like lettuce and other leafy greens, carrots, and radishes can benefit from overnight covering to protect them from frost and extend the growing season. Gardeners can save many crops from an early frost. RELATED: Hardiness Zones 101: What All Home Gardeners Need to Know Cover up Cool-season crops that can survive a frost or even an early freeze include asparagus, cabbage, kale, spinach, broccoli, Brussels sprouts, collards, potatoes, and onions. Hardy plants generally have higher levels of sugar in their leaves, which enables them to tolerate lower temperatures. ![]() Examples of frost-tolerant plants include lettuce, cauliflower, endive, peas, carrots, Chinese cabbage, celery, chard, and chicory. Common tender fruits and vegetables include watermelon, squash, pumpkin, cantaloupe and muskmelon, eggplant, cucumber, okra, pepper, beans, tomatoes, and most herbs.įrost-tolerant plants can withstand brief periods of cold or frost, but beyond very limited periods, would require protection. Tender plants are easily damaged by frost or cold weather, requiring protection to survive.
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