Blue Princess/Prince Holly
I live in Gold Bar, WA (Zone 7b). I recently planted two Blue Princess holly and one Blue Prince. They are planted together with the Prince in the center. The two Blue Princess shrubs are doing great, but the leaves on the Prince are turning brown, looks like it is dying. Wondering what the cause could be and what, if anything, I can do about it.
Certified GKH Gardening Expert
The following article may help pinpoint the cause: