Azaleas and Rhododendrons: What is the Difference? Rhododendron viscosum (L.) Torr. Swamp azalea (Rhododendron viscosum) is a heath family shrub usually standing 5 feet tall and up to 12 feet wide. – swamp azalea Subordinate Taxa. Azaleas do not need pruning (except for broken branches) and are moderately slow growers. Fragrant (musky clove-like aroma), tubular, white to pale pink flowers (1 1/4" across) bloom in clusters of 4-9 after the leaves have emerged in May-July (one of the last of the native azaleas to flower). Good cut flower. The Garden wouldn't be the Garden without our Members, Donors and Volunteers. It is one of 17 species of azalea which are native to the U.S. Feb 15th. It may be found at some higher elevations in the Appalachian Mountains. This deciduous shrub, growing to 2.5 m (8.2 ft) tall and broad, is native to the eastern United States. Fragrant (musky clove-like aroma), tubu… The swamp azalea is fragrant and blooms in the spring and into the summer in some areas. One of 17 species of azalea native to the U.S., endemic to swamps, bogs, stream margins and wet lowlands from Maine to Ohio south to Florida and Alabama, this native wetland shrub (commonly known as swamp azalea) is sometimes called the clammy azalea for its very sticky corolla. Grayantoxin is a powerful compound that can poison your dog, cat, horses, goats, sheep and even you. It is best sited in a location protected from strong winter winds. Best grown in acidic, humusy, well-drained loams in part shade. Native Range: Eastern and southern United States. These are R. atlanticum or Coast Azalea, R. viscosum or Swamp Azalea, and R. nudiflorum or Pinxter flower. The plant can grow to anywhere from 6 to 10 feet in height and width. The species name, viscosum, means sticky in Latin. Note this is the default cart. Held in small clusters of 3-12 flowers, they bloom profusely after the leaves emerge, in early summer and exude a strong clove-like perfume. It blooms in early summer and has a wonderful spicy, clove-like scent. Removing spent flowers promotes new growth. Acidify soils prior to planting and thereafter as needed. Swamp Azalea, Clammy Azalea, Honeysuckle Azalea, Swamp Honeysucle, Hammock Sweet Azalea, Cory Azalea Photo by Cure Nursery Swamp Azalea is a shrub up to 8 ft tall at maturity with an upright, loosely branched, multi-stemmed habit and a tantalizing, musky floral scent in late spring. Prized for its strongly-scented flowers and beautiful fall foliage, Rhododendron viscosum, commonly known as Swamp Azalea, is a very appealing native to the swamps of the eastern United States, from Maine to Alabama, and westward to Texas. Swamp Azalea, Clammy Azalea, Honeysuckle Azalea, Swamp Honeysucle, Hammock Sweet Azalea, Cory Azalea. Branching opens up with age. Rhododendron viscosum Swamp Azalea. Clip off spent flower clusters immediately after bloom as practicable. Only plants will be removed from the collection. Check these Great Plant Combination Ideas with Rhododendrons - Azaleas, A Super Climbing Duo with Crimson Roses and Purple Clematis, A Fabulous Duo to Try: Rose 'Sharifa Asma' with Campanula, A Super Climbing Trio with Clematis 'Ville de Lyon', A Super Climbing Duo with Clematis 'The President', A Super Climbing Trio with Clematis and Roses, A Lovely Mediterranean Border with Lavender and Lilies of the Nile, An Eye-Catching Border Idea with colorful Allium and Euphorbia, A Super Climbing Duo with Clematis montana Grandiflora, Azaleas - Rhododendrons, Rhododendrons - Azaleas, Cut Flowers, Fragrant, Plant of Merit, Showy, Swamp Azalea grows with a loose, upright, spreading habit, up to 5-8 ft. tall (150-240 cm) and 7-10 ft. wide (210-300 cm). Here on the coast, there are at least three different species of wild or native azaleas. It spreads through root suckers, which will see it naturalize gradually. Sweet symbol: RHCA7 Leaf: Alternate, simple, pinnately veined, obovate to elliptical, deciduous, 1 to 3 inches long, dull green above, wooly hairs below. Flower: White to pink with tube length much longer than petals, appearing with or just before leaves in spring. Posted by Hudson on 3rd Jun 2020 Arrived in good condition and doing well now. 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. Prefers a sun dappled shade or high open part shade. Varieties of deciduous azaleas, including plumleaf azalea, pinxterbloom azalea and swamp azalea, are more susceptible to leaf rust than other varieties. They make an excellent cut flower. Will slowly naturalize by root suckers. Leaves are dark green above and pale green below. Threatened and Endangered Information: This plant is listed by the U.S. federal government or a state. A wonderful landscape plant that deserves a place near a patio, deck or living area, where its delightful fragrance can be enjoyed. The texture of the leaf can be smooth, or rough. 5 Viscosim Seanp azalea. It also tolerates periodic flooding, but will not grow in soils where the roots are submerged in water. Fruits are egg-shaped capsules (to 3/4" long).Genus name comes from the Greek words rhodo meaning rose and dendron meaning tree. Root rot is less likely to occur with this species. Swamp Azalea Leaf. Facts Clammy azalea hails from wetlands of the southeastern United States, and gets its name because its corolla is covered with sticky glands. Plants often thrive when sited in moist soils near stationary or moving water. In the past, plants called R. serrulatum (hammocksweet), R. oblongifolium (Texas azalea), and R. coryi were recognized as separate species, but now all have been classified as various forms of R. viscosum. It blooms late for an azalea, after its leaves are out. 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Found in bogs, pocosins, wet savannas, stream sides and other moist habitats, Swamp Azalea will also do well in gardens with some shade and average moisture. Clammy azalea is a loose, open, deciduous shrub growing to 12 ft. in width, but averaging only about 3-5 ft. tall. This azalea should never be planted near a black walnut or butternut tree (roots of both trees produce toxic juglones which will typically damage or kill rhododendrons/azaleas growing within or close to the drip line of either tree). Noteworthy Characteristics Takes heat with a smile. Rhododendron viscosum (Swamp Azalea) Prized for its strongly-scented flowers and beautiful fall foliage, Rhododendron viscosum, commonly known as Swamp Azalea, is a very appealing native to the swamps of the eastern United States, from Maine to Alabama, and westward to Texas. White-Topped Pitcherplant, Crimson Pitcherplant, Purple Trumpet-leaf or White Pitcherplant. One of the later blooming native Azaleas, the white blossoms are very fragrant, so place it near a pathway to enjoy the scent. Both the Coast and Swamp azaleas … This plant is commonly known as the swamp azalea as it is native to the swampy areas of the eastern United States, including Texas, Mississippi, the Carolina's, and all the way up to New England. Video of the Day It is regarded as vulnerable to extinction at the edge of its range in New Hampshire and Maine. Common names are from state and federal lists. Would order from mailordernatives again. Foliage may scorch in full sun unless soils are kept uniformly moist. Its leaves are purplish-green in spring, turning to dark green in summer … Oak, swamp white (Quercus bicolor) Tolerating a seasonally high water table and droughty conditions, this medium-to-large canopy tree is found in moist or wet, forested, poorly drained sites. Becoming a contributing member of Gardenia is easy and can be done in just a few minutes. Other native azaleas available include the coastal azalea (R. atlanticum), the pinxterbloom azalea (R. periclymenoides), the swamp azalea (R. viscosum) and numerous cultivars of crosses between the native azaleas. Narrow, obovate to oblong-ovate leaves (to 2 1/2" long) with wedge-shaped bases and blunt/short-pointed tips are clustered at the branch ends. It is typically found in swamps, bogs, stream margins and wet lowlands from southwestern Maine to northeastern Ohio south to Florida and Alabama. Care Provide full sun to partial shade and moist, well-drained, humusy, acidic soil. A loosely branching plant, it has clusters of glossy, short-stemmed green leaves that become shades of maroon or orange in autumn. Paynter, Wilmington. Their blooms vary from whites to pinks to orange; some bloom early spring while others bloom in summer. Branchlets are hirsute (stiff hairs). At the hottest and driest times water 2 or 3 times per week. If you look underneath the azalea's vibrant colors, you find a plant with leaves and stems full of a toxic principle called "grayantoxin." Branching opens up with age. swamp azalea. This species of azalea is tolerant of moist to wet soils including ones with somewhat poor drainage (its native habitat is swampy lowland areas). Foliage turns a striking combination of orange … Azaleas in full sun or dry climates need regular watering in conjunction with mulch to retain water. Flowers. The most variable of all native azaleas is the swamp azalea (R. viscosum). It has rounded matt green leaves. Transferred from the Greek name for Nerium oleander.Specific epithet comes from the Latin word viscosus meaning sticky in reference to the sticky substance excreted by glandular hairs on the corolla tubes of the flowers.Additional common names include clammy azalea in reference to its sticky (viscous) corolla tubes and honeysuckle azalea (even though it is a rhododendron and not a honeysuckle) in reference to the resemblance of its flowers in both appearance and fragrance to the flowers of some honeysuckles. Rhododendron viscosum, the swamp azalea, clammy azalea or swamp honeysuckle, is a species of flowering plant in the heath family Ericaceae. To create additional collections, you must be a paid member of our site. ‘Betty Cummins’ grows to 6′ … Swamp Azalea (Rhododendron viscosum) – A Hardy Sweet-Smelling Azalea. All parts of plant are poisonous if ingested. Swamp azalea grows wild from Maine to Florida, and this particular form was found in New Jersey. Look out for signs of drought (leaf curls and brown colour). I love our native deciduous azaleas which locals sometimes call wild honeysuckle or bush honeysuckle. The bark is smooth and gray in color. If your garden is small, you need to choose... Photo courtesy of Natural Landscapes Nursery. However, azaleas are susceptible to a variety of fungal diseases including leaf spot and rust. Rhododendron canescens, commonly called mountain azalea, Piedmont azalea, hoary azalea or Florida pinkster, is a large deciduous shrub that is native to moist woods, swamp margins and along streams from North Carolina to Florida west to Tennessee, Arkansas and Texas. Not sure which Rhododendrons - Azaleas to pick? Young twigs are reddish-brown in color and pubescent. The deciduous, lustrous deep green leaves turn an attractive orange to maroon in fall. Swamp Azalea Deserves More Garden Space What Grows There Hugh Conlon Horticulturalist Professor Lecturer And Gardener Swamp Azalea Living Maedeans Style Flickr Swamp Azalea Rhododendron Viscosum Pm Cbo 8306 Swamp Azale Flickr Cookies, This site is protected by reCAPTCHA and the Google, Learn How To Plant And Care for Your Azalea or Rhododendron. Horticultural Group Viscosa azaleas are lax deciduous shrubs with fairly small leaves and trusses of funnel-shaped, fragrant flowers in early summer Details R. viscosum is a bushy deciduous shrub to 2.5m tall, with dark leaves glaucous beneath. The plant has flowers that are white or light pink. As with other azaleas, swamp azalea’s leaves start dark green but turn yellow, orange, and even purple in the fall. Exceptionally cold-hardy, this late season Azalea can withstand temperatures as low as to -20°F (-29°C). Plants will slowly naturalize by root suckers. Rhododendron viscosum (L.) Torr. Banister's drawing called the plant "Cistus virginiana flore et odore Periclymeni." swamp azalea Ericaceae Rhododendron canescens (Michx.) Roots must never be allowed to dry out. Plants in groups with earlier blooming azaleas to extend the annual azalea bloom period. Avoid clay soils for all but the swamp azalea. Deleting this collection CANNOT be undone. This deciduous azalea has dark green leaves and funnel-shaped white flowers suffused with pink. In 1680 clergyman John Banister sent seed of Rhododendron viscosum, the swamp azalea, back from Virginia to Bishop Henry Compton in England. Posted by Thomas Govus on 21st May 2020 Lovely plant in excellent condition. To use the website as intended please  It may be found at some higher elevations in the Appalachian Mountains. A healthy plant in the proper environment with proper care should have limited problems, however. Azaleas in full shade: In full shade, with well prepared compost and mulch azaleas will only need watering in times of drought. Leaves turn attractive shades of yellow, orange and purple in fall. Accept Prized for its strongly-scented flowers and beautiful fall foliage, Rhododendron viscosum, commonly known as Swamp Azalea, is a very appealing native to the swamps of the eastern United States, from Maine to Alabama, and westward to Texas. This is a cold-hardy shrub that can withstand temperatures down to -20°F. Azaleas and Rhododendrons are not difficult to grow but have special cultural requirements.Read More, Not sure which Rhododendrons - Azaleas to pick?Compare All Rhododendrons - Azaleas, Great Plant Combination Ideas with Azaleas - Rhododendrons, Great Plant Combination Ideas with Rhododendrons - Azaleas. Rhododendron viscosum, commonly known as swamp azalea, is a loose, upright-spreading, deciduous woody shrub that typically grows to 3-5' (less frequently to 8') tall. Azaleas are susceptible to many insect and disease problems, including but not limited to canker, crown rot, root rot, leaf spot, rust, powdery mildew, aphids, borers, lacebugs, leafhoppers, mealybugs, mites, nematodes, scale, thrips and whitefly. Specimen around the home. 5 Rhododendron viscosum. Found in swampy areas throughout North Carolina, but most common in the Mountains and Coastal Plain. Best grouped in shrub borders, mixed borders, open woodland gardens, native plant gardens and open shade gardens. The flowers have a spicy, sweet fragrance. Cultivars include 'Delaware Blue’, … We use cookies on this website, you can read about them here. This plant blooms very late in the season, and sporadically throughout the summer. These crosses have added to the many color variations and color combinations naturally present in our native azaleas. 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At some higher elevations in the heath family Ericaceae a membership account to your! That are white or light pink 3/4 '' long ).Genus name comes from the stickiness of leaf! Variable of all native azaleas is the proper botanical genus for azaleas curls and brown colour ) as vulnerable extinction... Spring and into the summer a patio, deck or living area, where delightful! Flatwoods, and on mountain top balds Thomas Govus on 21st may 2020 Lovely plant in spring...