Norman Winter, horticulture specialist with the Mississippi State University Extension Service, said most of the cold temperatures have been somewhat typical for the state and not as threatening for landscape plants.
Clouds form near the ground and trap some warmer temperatures nearest the ground.
People can help even more by adding a tall layer of pine straw, a box or blanket over some of the less durable plants. Plants that are grown north of the zone they are recommended for will be at the greatest risk. The location of tender plants is critical for their survival outside. There are some locations, such as low-lying areas, that will increase the risk. Large appliance boxes are good sources of protection, but today's gardeners have additional options that were not available for previous generations.