My hunch is a combination of several things. My gut tells me a major factor has been stress due to weather. Over the course of the of the past 3 years or so, I have lost 3 Andromeda, 2 Rhodys and 2 Azalea. A couple of those could have been plant quality at the time of purchase - I buy a lot of "orphans" cause I am cheap and have such a large garden area.
