I have several azaleas on my property, a few natives and a few non-natives, and we also have tons of rhododendron. I don't have any issues with the honey bees working the azaleas or the rhododendrons. They usually leave them alone unless we are in a really strong dearth. The native bees LOVE the azaleas though. I've seen carpenters, bumbles, masons, and sweat bees all working them.