My endless summer hydrangeas are three years old and a four out of five of them were looking amazing and growing huge this spring. I noticed one last week was wilting terribly even though was well watered. As a last ditch effort I dug it up and sprayed off the roots and re-planted it in a pot but I don’t think it’s going to survive. The hole that it came from seemed to be kind of waterlogged so I assumed maybe it was root rot?? The Hydrangeas next to it are huge and healthy and all in same soil with same water drip line. Today I noticed a few wilting leaves and flowers on the healthy ones. What is wrong?!