NOID Rhododendron, if anyone has an idea about the name of this hybrid it will be deeply appreciated. Individual flowers are approximately 2 inches (5 cm) in diameter. I have to trim it every year after flowering, because my husband always complains that it is getting too big. It was there when we bought the house, and I don’t have the willpower to get rid of it. It always puts on a show for a couple of weeks in late spring.