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Message: [QUOTE="Marck, post: 215483, member: 15114"] Surprisingly, wilting & curling leaves can be a symptom of both of under-watering and over-watering/poor drainage. If there is no drainage issue, perhaps your Rhododendron does need more water. However if you have watered your plants deeply and this symptom persists, then assume there is a drainage issue, perhaps one you have not previously noticed. In either case, I recommend that you mulch your shrubs with two or three inches of deep layer of fine bark and then try water deeply but not too frequently, especially since Fall is just around the corner. Rhododendron, particularly appreciate a thick mulch layer, but I would go whole-hog mulch that entire bed. Good news is there are floral thyrses developing. Hopefully they will continue to develop. In Spring, fertilize well and apply sulfur. Also do what you can to make sure the shade stays light and dappled. [/QUOTE]