Note Helleborus may be evergreen but can have a rough time when PNW winters are extreme. Secondary organisms, such as bacteria or fungi, may colonize brown, dead areas caused by cold temperature injury.
No pathogens detected and cold injury was suspected.
Melodie Putnam, 2010.
Note Helleborus may be evergreen but can have a rough time when PNW winters are extreme. Secondary organisms, such as bacteria or fungi, may colonize brown, dead areas caused by cold temperature injury.