Leaves of evergreen shrubs turn brown means death?
I have had some evergreen shrubs, such as bitter sweet. When I got them, they were all green. After a week, a few of them have no green leaves at all. All the leaves turned brown. It is a sign that they are dead, or they will produce new green leaves later..... Should evergreen need photosynthesis at ALL TIME? Once no green leaves means no photosynthesis, and it further means the entire plant is dead???