I'm so sorry I haven't been able to respond to you before this but I've been in the hospital for 3 weeks and was too weak to sit at the computer until now. I did manage to download my e-mails a couple of times, but there were so many that I just gasped and went back to bed. Recovery has been very slow.
Back to your azalea delemma. Think about root pruning them so the root mass will be smaller. One good thing about azaleas is they have shallow root systems, so they aren't going to be very deep, just spread out. I don't have the strength to do the research to find you a site, but here's the search you can look through.
What 'cha think?
When weeding, the best way to make sure you are removing a weed and not a valuable plant is to pull on it. If it comes out of the ground easily, it is a valuable plant.