Water: Medium moisture. Together, the literal translation of rhododendron is “rose tree”. These giants include varieties like Caractacus (Rhododendron Caractacus), hardy down to USDA zone 4 and bearing rosy red blooms, according to the American Rhododendron Society, or the purple-flowered Whidbey Island (Rhododendron 'Whidbey Island') hardy down to USDA zone 6. Expect it to mature at just 36 inches tall and wide, so try it in a small garden spot or a container. Red-flowered varieties such as Baden Baden (Rhododendron 'Baden Baden') and Scarlet Wonder (Rhododendron 'Scarlet Wonder') stay small and are hardy down to USDA zone 6. They can be planted among other shrubs of similar size or by themselves in a grouping. Rhododendron Nova Zembla. I like … America (Rhododendron 'America'), Burma (Rhododendron 'Burma') and Nova Zembla (Rhododendron 'Nova Zembla') are hardy down to USDA zone 4 and bear red flowers, while Anah Kruschke (Rhododendron 'Anah Kruschke') and Cadis (Rhododendron 'Cadis') bear purple flowers and are hardy down to USDA zone 5. 3 to 6 Feet Tall. We have selected the best, and these Tall and Compact hybrids are perfect for any garden situation. Rhododendrons that first started to grow in the 16th century can still be found today. Rhododendrons that stand 1 to 3 feet tall are often considered dwarfs. In general, Rhododendrons in extreme climates benefit from filtered light and partial shade. 3. © Copyright 2020 Hearst Communications, Inc. Fortunately, the Rhododendron genus is very large, with 800 to 1000 different species – including the entire azalea clan. They were first discovered by a Flemish botanist, Charles l’Ecluse. Rhododendron PJM Elite. The hardiness range for rhododendrons falls between U.S. Department of Agriculture plant hardiness zones 4 through 8, but each rhododendron has its own hardiness rating, according to Missouri Botanical Garden. 'Brown Eyes' - pink with a golden-brown flare, 6 ft. (180 cm), They can be planted by themselves but are also attractive when planted in groups. The small-leaved and early-flowering PJM-type rhododendrons fall into this group, and include PJM (Rhododendron 'PJM'), PJM Elite (Rhododendron 'PJM Elite') and PJM Laurie (Rhododendron 'PJM Laurie'), all hardy down to USDA zone 4. Miniature rhododendrons seldom grow beyond a foot in height. Although some 10 foot tall bushes will grow in full sun, many do best when protected by taller trees or buildings. A number of popular varieties produce striking blossoms. Hardiness Zone: 4-9. There are literally thousands of different Rhododendrons to choose from and they vary greatly in height, hardiness, flower size and flower color. Hardy Rhododendron Varieties. That means that you’ll need to select rhododendrons for zone 5 that can survive. Miniature Rhododendrons Under a Foot. Rhododendron Saffron Queen. 13 Types of Rhododendrons (Photos & Details) 1. A good resource for rhododendron cultivars is Virginia Tech's American Rhododendron Plant Society Registry. Many in this group flower early, such as Little Lou (Rhododendron 'Little Lou'), with yellow flowers and hardiness to USDA zone 6, or Cliff Garland (Rhododendron 'Cliff Garland'), which bears pink flowers and is hardy down to USDA zone 5. However, there are available Rhododendron varieties that can stand summer heat. With over 150 diverse varieties, we provide more than enough choices. Height, flower color and form, leaf size and form, hardiness, and flowering times vary so widely that rhododendrons defy a definitive description. Mother of Pearl (Rhododendron 'Mother of Pearl') and Mount Everest (Rhododendron 'Mount Everest') both bear white flowers and are hardy down to USDA zone 6. Over 6 Feet Tall. Some may be small enough to place at the front of the border. I already have one spot in mind at the corner of my back garden area. Pink-flowered varieties include Furnival's Daughter (Rhododendron 'Furnival's Daughter') and Van (Rhododendron 'Van'), which are hardy down to USDA zone 6. Light: Partial sun. The purpose of the Society is to encourage interest in and to disseminate knowledge about rhododendrons and azaleas. Because of this, they are exceptionally popular flowers. Much like azaleas or hydrangeas. 5. With rhododendrons being the backbone of a Northwest garden, variety in size, growth habit, and leaf pattern becomes desirable. These rhododendrons need ample room to grow and should not be planted on small lots or near sidewalks or driveways. Rhododendron Size. Get to know the meaning of rhododendron, the most popular varieties, and how to grow them. From these humble beginnings, plant breeders have developed more and more exotic hybrids over the past 100 years, with about 20,000 registered varieties. They can be planted among other shrubs of similar ... 1 to 3 Feet Tall. Flowering Trees That Grow Less Than 25 Feet, Difference Between Mountain Laurel & Rhododendrons, American Rhododendron Plant Society Registry, American Rhododendron Society Massachusetts Chapter, Missouri Botanical Garden: Rhododendron (PJM Group), Virginia Tech: Journal American Rhododendron Society, Miniature Rose Varieties for a Hanging Basket.