Climbing Hydrangea Wilting
I have two climbing hydrangeas planted on either side of the front door of a north-facing house. They have been healthy for 5-6 years. Suddenly, this morning I noticed about a quarter of the leaves on one hydrangea were wilting. This afternoon, they were all wilting. Other hydrangeas, which usually signal need for water before any other plant, are not wilting. No evidence of spots or powdery mildew. Any ideas?