Like azaleas, rhododendrons are classified as part of the genus Rhododendron, and belong to the Ericaceae or heath family. In order to thrive, most plants in this family must be planted in a well-drained location with acidic soil.
About this Author
Gwen Bruno has 28 years of experience as a teacher and librarian, and is now a full-time freelance writer. She holds a bachelor's degree from Augustana College and master's degrees from North Park University and the University of Wisconsin. She writes articles about gardening for DavesGarden.com.