Q. Are there any do’s and don’ts you can give regarding covering plants to protect them from the winter weather here in Las Vegas. I have some small citrus that are in the ground.  A. This past week we had freezing damage up in the Northwest part of the Valley. Probably the single best publication on this topic comes out of Arizona and you can download it below. I have never thought much about using Christmas tree lights around trees or shrubs unless you can capture that heat. And those little LED lights don’t put out much heat. In my opinion, the most sustainable way is to find landscape microclimates and cover plants with a blanket of some sort.  Stay away from open areas that get windy and narrow passageways between homes. These narrow spots tend increase wind speed. The two damaging factors are low temperature and wind. Focus on these two factors to protect your plants.I worry a little bit right now with this unexpected cold weather about early snowfall. There are still a lot of leaves on the trees and if we get some snow, will see plenty of damage. Streets that run North and South in the Valley tend to get colder than streets running East and West.I like to call these urban canyons. Protect from cold damage click here Cold damage to Sago Palm Cold damage to bottlebrush Cold damage to star Jasmine Cold damage to Mesquite Cold damage to agave