Why are my Evergreens browning on the Southwest Side?

Did you know that the sudden appearance of brown foliage on evergreen trees and shrubs that we see in March and April is often a result of winter desiccation? Every spring we get calls from property owners wondering why their cedars, spruces, yews, junipers and boxwoods are suddenly showing signs of browning foliage in March and April. Here is a brief explanation of the problem, and some practical ways to prevent your evergreens from desiccating this winter.