How Are Scientists Using GMOs 4 Pros and Cons of GMO Foods Starting a New Lawn University of Maryland Extension Schlosspark Heltorf in Dsseldorf: So schn blht der Rhododendron Did you know? All azaleas are rhododendrons, but not all rhododendrons are azaleas. The Mendocino Botanical Gardens tells us: All azaleas are in the genus Rhododendron, which are in the Ericaceae or Rhododendron PG 1 'Cunninghams White' 90 100 cm