They probably just need some acid fertilizer. I don't imagine you're soil is acid there and azaleas and camellias and as far as I know all rhododendrons require a certain amount of acid in the soil or you have to give them fertilizer that has acid.
I am a strong believer in the simple fact is that what matters in this life is how we treat others. I think that's what living is all about. Not what I've done in my life but how I've treated others. ~~ Sharon Brown
