Blues Atlas Cedars are a Hardiness zone 6-9.
The minimum temperature in these zones are between 0 and -5 degrees Fahrenheit. Although our winter so far hear in Wichita has been fairly mild, we reached -10 degrees Fahrenheit in December.
This, we believe, has caused winter damage on a lot of the Blue Atlas Cedars. Some of the trees that we have looked at have significant damage.
If the tree looks severely damaged then getting water to the roots and deep root feeding in early spring are recommended to help the plant to recover. Deep root feeding is a controlled fertilization process that supplies immediate beneficial nutrients directly to the root system to give it a boost.