My poor Rhododendron
Iv'e had this rhododendron for at least 10 years and planted it in it's present location from a pot about 5 years ago. It's appeared very happy and given me prolific flowerings of gorgeous carmine flowers. But look at the picture, now it looks as if half is ok and the other dying. I haven't yet fed it this spring but it's had rhododendron and camellia feed regularly in the past. Please can anyone give me advice... and hope.