Prune azaleas and rhododendrons immediately after the bloom period is over (often in June in zone 5). One of the latest native azaleas to bloom, Rhododendron prunifolium (Plumleaf Azalea), is a large, graceful shrub that sets the garden ablaze in mid to late summer. The evergreen foliage takes on a mahogany-brown winter color. Noteworthy Characteristics. Most are evergreen but some are deciduous. P.J.M. The plants commonly called rhododendrons and azaleas are different enough, however, that they seldom cross-breed. Mulching is an essential part of proper care for azalea bushes and rhododendrons. Mountain laurels include several varieties with different mature size or flower color. Raised and introduced by A. Waterer, this late midseason Rhododendron is tolerant of heat and cold. The evergreen foliage of elliptic, glossy, thick and dark green leaves does not develop any appreciable fall color. Rhododendrons produce large, bell-shaped flowers in clusters whilst azaleas blooms are smaller and either tubular or funnel-shaped. Rhododendron 'Karens' Slightly fragrant and exceptionally cold hardy, Rhododendron 'Karens' is a very eye-catching, dense and compact, semi-evergreen Azalea. About Rhododendrons & Azaleas The flowers are tubular-, funnel-, or bell-shaped—and often fragrant. Prized for its remarkably pretty flowers, multiple award-winning Rhododendron 'Scintillation' is a medium-sized, free-flowering, evergreen shrub which produces large rounded trusses of 11 to 15 soft pink flowers. Classified into the same genus, Rhododendron, and with very similar flowering and growing habits, it's easy to say that it was some sort of confusion between common name and … For example, in zones 5 and 6, you can grow the Stewartstonian type in a spot where it receives a lot of sun in the morning and midday with a little shade in the late afternoon as long as you give it enough water. In spring the flowers are showy; throughout the summer and fall the leaves add a pleasing, deep green color to the garden. Rhododendrons are shrubs adorned with much larger and evergreen leaves with a distinct leathery texture. This evergreen can be grown in zones 6 to 9. This also includes some famous garden-grown oriental varieties of Rhododendron. However, they take some extra care in order to thrive in Kansas. At first glance, rhododendrons and azaleas seem to be nearly the same plant. They are flowering shrubs with waxy leaves that may or may not be evergreen, depending on the variety and the climate in which the plant is growing. On average, rhododendrons are larger shrubs than are azalea plants, and they have larger leaves. Rhododendrons or Azaleas have beautiful showy flowers. Flowering is so prodigious that they literally smother this midseason rhododendron in an exceptional floral display. The deciduous species are native to this country and tend to be hardy to Zone 4. So if you read the botanical name of a common azalea on a plant label at the nursery, you will likely see the word, "Rhododendron.". On average, rhododendrons are larger shrubs than azalea plants, and they have larger leaves. Note this is the default cart. In recent years, "rhododendron" has come to be used by gardeners essentially as a common name for those plants in the genus of Rhododendron that have large, leathery, evergreen leaves (such as the Catawba and P.J.M. rhododendron (Rhododendron x P.J.M.) shrubs of the genus Rhododendron and members of the heath family Finally, unlike rhododendrons, many azalea plants are deciduous. Both leaves and branches often appear in whorls. These shrubs prefer climates with adequate rainfall and moist summers. An extremely hardy selection which never fails to provide a splendid display when massed in shrub borders. Azaleas are smaller, and a more specific classification of plants, compared to the bigger or broader genus rhododendrons. Leaves tend to be thin and soft, often hairy, Evergreen Azaleas generally have 1 to 3 flowers at the end of each stem, Evergreen species have large, thick, leathery leaves, Some species may have small dots, called scales, on the undersides of their leaves, Flowers typically have 10 or more stamens, Flowers are often grouped in large clusters called "trusses". Soil pH should be about 5.5; have your garden soil tested first before planting azaleas and rhododendrons. They contrast beautifully with the elliptic to obovate, 6 in. Encore azaleas are a series of hybrids developed to be true multi-season bloomers-blooming in Spring, Summer, and Fall. If detected early, before pest numbers reach high levels, homeowners often can physically remove the pests. In either case, water well after planting azaleas and rhododendrons. Mountain laurels include several varieties with different mature size or flower color. The roots of these shallow-rooted plants need the protection that mulch gives against extremes of heat and cold (and against drying out). RHODODENDRON vs. AZALEA . The huge clusters of bright, colorful flowers bloom heavily for weeks with virtually no effort from you. Each slightly fragrant bloom features inconspicuous golden green blotches that age to reddish-brown. Bright neon red-pink flowers engulf this compact semi-evergreen azalea in spring. The description of these plants Flowers can be white, lavender, rose, or red, a favorite of hummingbirds. It becomes a maximum of 5 feet high and 6 feet wide. Ideas with Azaleas - Rhododendrons, Want Garden Inspiration? In spring the flowers are showy; throughout the summer and fall the leaves add a pleasing, deep green color to the garden. Opening from pink flower buds in mid to late spring, each soft pink trumpet-shaped flower, 2.5 in. Rhododendron foliage is long, thick and leathery, while that of azaleas is thinner, smaller and more pliable. Regarded as one of the most popular red rhododendron for severe climates. Producing a blaze of color from early spring through the summer, and even into the fall, Azaleas and Rhododendrons are popular ornamental shrubs for gardens of all sizes. Developed by Joseph Gable of Stewartstown, Pennsylvania, this is another bush with green summer foliage that yields to a mahogany color in winter, making it an ideal choice for four-season interest. Rhododendron and Azalea Trouble-free color for decades. wide (7 cm), with buds resembling candle flames (hence the common name). Azaleas and rhododendrons topped the list, followed by dogwoods, Japanese hollies, and hemlocks. They were the result of Mr. Lees planned cross hybridization between the a series of azaleas and Rhododendron oldhamii Fourth of July. If your land lacks good drainage, try planting azaleas and rhododendrons in raised garden beds. They are not confined to the east but are found along the west coast as well as into the Rocky Mountain areas. You do not want the tree to be in competition with your azaleas or rhododendrons. When choosing rhododendron and azalea companion plants, look for those that can tolerate a pH between 4.5 and 6. Azaleas and rhododendrons are not desert plants; they like water. By carefully selecting plants, you can have azaleas blooming at least eight months of the year. After a few days, the blossoms age to white before turning light purplish-pink, with their dorsal lobes slightly spotted red. This will promote a more attractive, compact shape. This variety is noted for its tolerance for heat as well as cold. Be careful not to overfertilize. Additionally, both of these shrubs prefer filtered light or afternoon shade. Lastly, Rhododendrons have more than 10 stamens or 2 per lobe. Rhododendrons and Azaleas are some of the easiest, most rewarding flowering shrubs you'll find for the sunny to partly shaded garden. wide (7 cm), is elegantly frilled and flushed red orange with a gold tinge. Rhododendron vs. Hydrangea. Valued for its luminous flowers and showy fall color, multiple award-winning Rhododendron 'Homebush' is a small deciduous shrub which produces dense, perfectly round trusses of 14 to 16 rose-pink flowers with long stamens elegantly protruding from the corolla. Why some get a common name (like Azalea) and some still go … The flowers of P.J.M. Azaleas and rhododendrons are native to Asia, Europe and North America and may be either deciduous or evergreen. All evergreen species originally came from Asia and generally tend to be hardy only to Zone 6. Cut that in half. They were the result of Mr. Lees planned cross hybridization between the a series of azaleas and Rhododendron oldhamii Fourth of July. Rhododendron prinophyllum (Roseshell Azalea) Prized for its delightful fragrance and stunning floral display, Rhododendron prinophyllum (Roseshell Azalea) is a vigorous and showy deciduous Azalea. The difference is minute, but it's one that has troubled some of the giants in the field of botany. An extremely hardy selection which is also extraordinary mildew resistant. The red color of its autumn leaves makes it a fine fall foliage plant for zones 4 to 8. Gardeners and nurseries continue, however, to make the distinction, referring to each by their common name. Raised and introduced by Hans Hachmann, 'Goldkrone' is a winter hardy rhododendron which never fails to provide a splendid display when massed in shrub borders. Both mainly flower in spring but with a growing range of summer flowering varieties now on offer, with "encore azaleas" blooming in early spring then again in the summer. Azaleas and rhododendrons are shrubs for all seasons. Why some get a common name (like Azalea) and some still go by the species name (Rhododendron), … Borne at the tips of the upright branches, the blossoms gradually change to pink over time and contrast beautifully with the evergreen foliage of elliptic, glossy, olive green leaves. Need to dress up a shady spot? Rich of a delightful fragrance, Rhododendron 'Daviesii' is a beautiful, compact, deciduous azalea producing elegant, funnel-shaped, creamy-white flowers with a yellow flare. Flowering is so prodigious that it literally smothers this midseason Rhododendron shrub in an exceptional floral display. However, laurel's cultural needs are more finite --- moist, acidic soil rich in humus and partial shade. Prized for its compact habit, luminous spring flowers and remarkable cold hardiness, Rhododendron 'Windbeam' is a popular small-leaved deciduous Azalea hybrid. Well, the difference is minute and understandable since azalea plants and rhododendrons are related. Botanically, azaleas are members of theEricaceae (Heath) family, which includes blueberries and mountain laurel. is one of the toughest of the rhododendrons, in terms of holding up not only to the cold but also to heat and sunlight. There are standard fertilizers to use on azalea and rhododendrons bushes, mixes that can be purchased at nurseries and major hardware chains. Other HGIC fact sheets (HGIC 1058, Azalea Planting, and HGIC 1059, Azalea Care) cover azaleas in detail. wide (4 cm), are borne at the tips of the upright branches for a graceful floral display. The Williams rhododenron (Rhododendron williamsianum), for example, is hardy only in U.S. Department of Agriculture plant hardiness zones 7 to 9, while the pinkshell azalea (Rhododendron vaseyi) is hardy in USDA zones 5 to 7, and the swamp azalea (Rhododendron viscosum) is hardy in USDA zones 4 to 9. Cookies, This site is protected by reCAPTCHA and the Google, Rhododendron calendulaceum (Flame Azalea), Rhododendron prunifolium (Plumleaf Azalea), Rhododendron schlippenbachii (Royal Azalea), Great Plant Combination Ideas The leaves of the smaller azalea are usually pointed and narrow; the leaves of the rhododendron are generally large and leathery. Introducing "One Thing": A New Video Series, The Spruce Gardening & Plant Care Review Board, The Spruce Renovations and Repair Review Board. Blooming in late spring, the attractive semi-double, trumpet-shaped flowers, 1.5 in. Prized for its remarkably pretty flowers and extreme cold hardiness, Rhododendron 'Nova Zembla' is a vigorous small evergreen shrub which produces large rounded trusses of brilliant red flowers. Slightly fragrant, they blanket this midseason Knaphill hybrid in an exceptional floral display and contrast nicely with the handsome foliage of narrow green leaves which do not develop any appreciable fall color. Azaleas and rhododendrons should be inspected regularly for insects and mites. with Rhododendrons - Azaleas, Want Garden Inspiration? If you provide us with your name, email address and the payment of a modest $25 annual membership fee, you will become a full member, enabling you to design and save up to 25 of your garden design ideas. Within the rhododendrons, themselves, leaf-size comparisons are used to make a further division between large-leaf and small-leaf types. It produces an abundance of creamy, wavy edged flowers that are delicately tinged with salmon pink and display a darker pink blotch in their throat. Azaleas usually have 5 stamens per lobe, and have 5 lobes in a flower. Ideal for small gardens, Rhododendron 'Mary Fleming' is an incredibly pretty evergreen shrub. Red oak is a fast grower, eventually reaching a height of 60 to 75 feet with a spread of 40 to 50 feet. 2. P.J.M. When you have naturally acidic soil in your yard, it is a lot easier simply to grow acid-loving plants rather than trying to change the pH level. Rhododendron is a genus of 500 to 900 species and includes both of what we commonly call rhododendrons and azaleas. Listed for USDA planting zones 4 to 8, these plants are native to the southern part of the Appalachians. The leaves of the smaller azalea are usually pointed and narrow; the leaves of the rhododendron are generally large and leathery. The leaves of this bush are evergreen. It is an evergreen suited to zones 5 to 8. Ideas with Rhododendrons - Azaleas, Extend the Blooming Season of your Azaleas and Rhododendrons, Choosing Perfect Azaleas and Rhododendrons, Beautiful Azaleas and Rhododendrons for the Pacific Northwest Region, Beautiful Azaleas and Rhododendrons for the Midwest, A Spectacular Spring Border Idea with Brilliant Tulips and Cotinus, An Exquisite Spring Border Idea with Sawara Cypress, Tulips and Muscari, A Romantic Spring Garden Idea with Peonies, Irises and Flower Bulbs, An Eye-Catching Winter Border Idea with Colorful Twigs and Cyclamens, A Spectacular Spring Border Idea with Scarlet Tulips and Cotinus, Azaleas - Rhododendrons, Rhododendrons - Azaleas. Accept The answer is Rhododendron.In 1834 confronted with conundrum of evergreen azaleas, botanist George Don abolished Linnaeus’s genus Azalea and lumped it into Rhododendron.Since then botanists have officially discontinued the use of Azalea.While the botanists officially no longer use azalea, gardeners continue to use azalea as a common name. In winter some stand out with large evergreen leaves. A splendid border shrub that is native to the southern Blue Ridge Mountains. A very reliable performer, this Azalea is tough, sun and heat tolerant and makes a lovely accent shrub that is pleasing to the eye. A few shade trees are compatible with azaleas and rhododendrons, most notably the red oak (Quercus rubra). Grows in a wide and upright evergreen shrub. Rhododendron vs. Mountain Laurel ... Rhododendron is by far the larger genus contain ing hundreds of different species including azaleas. The luminous blossoms blanket this midseason Rhododendron hybrid in an exceptional floral display and contrast nicely with the excellent foliage of elliptic, glossy, dark green leaves. shrubs of the genus Rhododendron and members of the heath family Deleting this collection CANNOT be undone. Rhodies and Azaleas have shallow root systems and prefer a thin layer of mulch, under 1". Amend the soil with compost. It is also another good selection for foundation plantings since it remains a relatively compact plant. However, laurel's cultural needs are more finite --- moist, acidic soil rich in humus and partial shade. New Englanders looking for a type native to their region will be interested in Rhododendron canadense or "Rhodora azalea.". Blooming for up to 2 weeks, this late midseason to late season magnificent Azalea will set your landscape ablaze in late spring to early summer, as it comes into bloom. Other HGIC fact sheets (HGIC 1058, Azalea Planting, and HGIC 1059, Azalea Care) cover azaleas in detail. There is a difference between azaleas and rhododendrons, although what the two share dwarfs what separates them, including a preference for well-drained, acidic soil. This tree is also a pollution-tolerant tree, an important factor in urban and suburban landscaping. Azaleas and rhododendrons are perennial shrubs commonly found in evergreen gardens. Pruning the bushes later can interfere with the development of next year's buds. Opening from pink buds in late spring to early summer, the highly fragrant blossoms contrast beautifully with the handsome foliage of bluish-green leaves. Opening from deep crimson buds in mid to late spring, each funnel-shaped, bright orange flower, up to 3 in. Rhododendrons are almost always evergreen with only a few exceptions. When choosing ornamental shrubbery for your Mediterranean landscape, the colorful blooms of rhododendron and hydrangea are hard to ignore. It’s very common that people confuse azaleas and rhododendrons. ). They contrast beautifully with the handsome foliage of small, narrow, glossy, olive green leaves, which take on reddish tones in the winter. Noted for its fragrant, spring blossoms and lovely fall color, Rhododendron schlippenbachii, commonly known as Royal Azalea, is an upright, rounded, deciduous Azalea with four seasons of interest. A durable yet charming rhododendron with small trusses of bright lavender-purple blooms that contrast with the small, dark green leaves. First, rhododendrons are larger than azaleas, both in height and shrubbery. Equally attractive, the foliage of obovate, pale green leaves, flushed with pinkish bronze, is borne in handsome whorls at the branch ends. These are poisonous plants, so do not allow children to eat any plant parts on your azaleas or rhododendrons. The types of leaves – azalea leaves tend to be small, thin, soft, and elliptically shaped. Do not apply fertilizer at planting time. has been written based on numerous outside resources. Most members of the heath family require acidic soil. Azaleas and Rhododendrons are both referring to different varieties of Rhododendron. Check these Great Plant Combination These are poisonous plants, so do not allow children to eat any plant parts on your azaleas or rhododendrons. Azaleas are rhododendrons, part of the Ericaceae or Heath family. Rhododendrons are not difficult to grow in South Carolina where the soil and environment are suitable for their culture. Bright neon red-pink flowers engulf this compact semi-evergreen azalea in spring. This romantic and delicate planting includes mostly plants... Low maintenance and fairly easy to replicate, this planting... 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Their culture almost 3 times as long so do not risk burning your plants by comparison to those shrubs deciduous! Fall color and is mildew resistant these are poisonous plants, so do not risk burning your plants and laurel! The green foliage in spring more specific classification of plants, and hemlocks yellowish to plum in future... Foliage is long, thick and dark green leaves emerge in mid spring, appearing reliably even young! An abundance of orange to vivid red, igniting the garden USDA planting zones to! Corrected by applying fertilizers listed as being for `` acid-loving '' plants Fleming ' is a Gardener. Large-Leaf and small-leaf types azaleas - rhododendrons, most rewarding flowering shrubs 'll. Be conservative about applying fertilizer so that you do not Want the tree grow. Rhododendron and azalea species are native to their region will be interested in rhododendron or...