10 Varieties of Rhododendrons to Try in Your Yard (+ Growing Tips)

It's best to plant your rhododendrons in spring or early fall. If your soil is fertile, you probably won't need to fertilize them. Otherwise, feed them with a product labeled for azaleas and rhododendrons and follow the package directions for how much to apply and how often. Torn between azaleas and rhododendrons for your landscape? Both kinds of shrubs are in the Rhododendron genus and thrive in well-drained, acidic soils, although rhododendrons are usually bigger plants with bigger leaves and flower clusters, also called trusses. For best results, plant rhododendron varieties recommended for your region.