Leaf damage tip
The long, cold winter and wind may have done some leaf damage mainly to broadleaf evergreens such as Nandina, Cherry Laurel, Aucuba, Osmanthus, Grape Holly and some Azaleas. One symptom of leaf damage is browning of the leaf tips. A stage beyond that is dieback of the branches. In extreme, unusual and prolonged cold, the roots die. Once your plants start leafing out in spring, you will know if the cold caused any branch injury. The tips will remain bare while the lower or inner branches push out new shoots. Your plants will fill back in by trimming off the dead wood and then back to the point of live growth.