keithp2012 said:
My sister had a huge rhododendron that died this year too, and three years ago was in perfect health. It's funny because I have another azalea mabye 20 feet away and it's doing fine, but the soil drains better where it is so that probably explains alot.
Oh dear, does she live nearby you? If so it does seem a bit alarming. Not sure if your other Azalea is of the same cultivar as the one that died, but I hope it's a more resistant one and I'm glad to hear it has better drainage
.
While David's suggestion about replacing all of the soil is normally a good one and I agree on it, I'm afraid that in this specific case it may not be enough as spores could be virtually everywhere. I have had stump rot(can be several Phytophthora species) on some of my lilies the two last years, thanks to cold and rainy springs. These attacks, while not very serious and only affecting a small amount of plants have been a long distance from each other and they have also been in soil that has never had any lilies growing in them before.
Edit - spelling
