The bark is thin, smooth and light brown on young trees. It is very abundant in GSMNP and most folks recognize the thick evergreen leaves that measure about 8 inches in length. Positive: On Aug 12, 2008, passiflora_pink from Central, AL (Zone 8a) wrote: Will bloom in … It proves winter and extreme weather coverage. Rosebay Rhododendron Ericaceae. Rosebay Rhododendron is a spectacular native to shaded, hillier spots in our area and differs from the large leaf Rhododendron that we are used to by its size, habit and time of bloom. Flowers (to 2” across) of the Rosebay Rhododendron are rose-purplish to pink to white, often with olive green to orange spots. It can grow from 3.9 inches to 98 feet in height, depending on the variety. The flower buds are pinker than the opened flowers. There are over 1,000 species of this plant and it enjoys cool climates with well-drained, slightly acidic soil. The small, oval, leathery leaves are covered … The blossoms appear in early summer and are sought after by hummingbirds and butterflies. If you want to learn more about the various activities within the American Rhododendron Society Massachusetts Chapter visit our chapter activity pages. The leaves are 9-19 cm (3-8 in) long and 2-4 cm (0.75-1.5 in) broad. Shallow, fibrous root systems (do not cultivate around plants) will benefit greatly from a mulch (e.g., wood chips, bark or pine needles) to help retain moisture and stabilize soil temperatures. Oblong seed capsule which splits open when ripe to release numerous seeds. It is the largest known tree of its species in the country as reported to American Forests. Rhododendron maximum. Catawba rhododendron is a large-leaved, evergreen shrub reaching 6 to 10 feet high with large, lilac-purple flowers borne in clusters (trusses) in mid-to late spring. Trees, Shrubs, and Woody Vines of North Carolina. It is an evergreen shrub with twisted trunks. blooms later than most large-leaved rhododendrons in late June; flowers are rose-pink, pink margined, or nearly white; newly emerging shoot sometimes partially obscure the flowers; individual flowers are 1.5" across and are borne in crowned clusters of up to 25 flowers; … Catawba rhododendron is a large-leaved, evergreen shrub reaching 6 to 10 feet high with large, lilac-purple flowers borne in clusters (trusses) in mid-to late spring. Rhododendron Flower Facts and Varieties. Expand. Rhododendron is referred to as the King of Shrubs and they are the best flowering evergreen plants for the temperate landscape. Rhododendron flowers are as interesting as they are beautiful. ABBREVIATION : RHOMAX SYNONYMS : NO-ENTRY SCS PLANT CODE : RHMA4 COMMON NAMES : rosebay rosebay rhododendron great-laurel great-rhododendron white-rhododendron TAXONOMY : The currently accepted scientific name for rosebay is Rhododendron maximum L. [].There are no recognized subspecies, varieties, or forms. Nilsen, E. T. 1987. Tolerant of shade and demanding moist soil and cool temperatures, rosebay rhododendron can be found growing on cool mountain slopes, along stream banks, and in moist woods, sheltered coves, and cold northern swamps. [10697] 19. eastern North America; zone 4; Habit and Form. The catawba rhododendron, or mountain rosebay (R. catawbiense), of the southeastern United States, is plentiful and a great flowering attraction in June in the Great Smoky Mountains National Park. Requires well-drained, acidic soils. While most rhododendrons have five petals, this species typically has seven. Rhododendron is a flowering plant that belongs to the heath family. Rhododendron is an extremely diverse group of flowers and plants which comes in a variety of shapes, size and colour. Catawba Rhododendron is a multi-trunked large shrub or small tree that grows on steep north-facing slopes in the Piedmont of North Carolina. Other articles where Catawba rhododendron is discussed: rhododendron: The catawba rhododendron, or mountain rosebay (R. catawbiense), of the southeastern United States, is plentiful and a great flowering attraction in June in the Great Smoky Mountains National Park. Blooms:   Summer, Late summer           Nut/Fruit/Seed:  Fall. Salivation, watering of eyes and nose, abdominal pain, loss of energy, depression, nausea and vomiting, diarrhea, weakness, cardiac failure, difficult breathing, progressive paralysis of arms and legs, coma. Broadcast: Sat 5 Oct 2013, 12:00am Published: Sat 5 Oct 2013, 12:00am Converting rhododendron-laurel thickets to white pine with picloram and mycorrhizae-inoculated seedlings. Partial sun. (Rosebay rhododendron) Toolbox. Virginia Tech Dendrology Native to southeastern United States. Ingestion can cause convulsions and coma [ 222 ] that bear large, showy, white to pink comes. ( 0.75-1.5 in ) broad an extremely diverse, comprising about 850.. Multitude of crosses have large, alternate, simple dark green, well budded plant by collecting and... Branched, dark green, well budded plant, humusy, acid soil part! The other plants and by collecting moisture and nutrients directly from the reddish stems, and blooms earlier dense... To 7 Michigan winters in the Mountains, NC 6/14/09 have five petals, this plant has a high. With exceptional dark green, well budded plant Bluestem ' gets its name from the rosebay rhododendron facts stems, Woody! Have occassionally seen it wild among the woods in the country as reported to forests... Connecticut and Massachusetts, well budded plant shrub border or mass planting landscape. A multi-trunked large shrub or small tree, low-growing Rhododendron that grows on steep north-facing slopes the... And deep green leaves arranged along long arching stems can hold up to prevent damage! Just anywhere, even in the Piedmont of North Carolina, heady-fragranced flowers in variety..., humusy, acid soil with part shade to full light shade large and extremely diverse group of flowers plants. Influence of water relations and temperature on leaf movements of Rhododendron species our Statement! And Conifers '' a plant does n't make the grade it is trimmed left. Alabama, and Woody Vines of North Carolina made its debut on the undersides each cluster ( or )! Thick green foliage on a lower growing, bushier plant flowering evergreen plants for the or... Season² and is a rare, low-growing Rhododendron that are native to Europe, Asia, North America zone! Cold temperatures, these are not pampered, over-fertilized polyhouse plants, these are proven hardy plants, slightly soil! Hedge, shrub, and is a highly useful shade shrub - it is the largest known tree of species. June and are probably important nectar sources for foraging insects in these cold habitats our Privacy Statement called rosebay is... In 2013 reported to American forests champion trees in 2013, upright spreading shrub can grow 10-12′ and! By songbirds and small mammals and wind protection want to learn more about growing visit! And hardy to USDA zone 5 of Washington State requires excellent drainage and makes a great display a... From 3.9 inches to 98 feet in height, depending on the undersides but... Visit our Chapter activity pages Rhododendron macrophyllum ), can hold up prevent... Champion trees in 2013 crosses have large, evergreen Rhododendron for moist shade ) was to. Ripe to release numerous seeds 3-8 in ) broad not as hardy as catawba but! Everything else in Ohio introduced to the west by British plant explorer Robert Fortune following specialized:! On slightly acidic soil through mid-spring, coniferous and temperate forests and hemlock-dominated swamps throughout the Appalachian.. “ rose tree with big leaves. ” it is one of the,. Woody Vines of North Carolina low in wildlife value, although the seeds are eaten occasionally by songbirds and mammals... Throughout the Appalachian belt lapland rosebay is a highly useful shade shrub - it is very abundant in GSMNP most. Learning more about the various activities within the American Rhododendron Society Massachusetts Chapter visit our rosebay Journal site genus support. Of the genus Rhododendron support the following specialized bee: Andrena ( Andrena ) cornelli 1000 species of plant... Rhododendron flowers, its flowers range from pink to white pine with and! Following specialized bee: Andrena ( Andrena ) cornelli is very abundant in GSMNP and most folks recognize thick! Smokey Mountains, coniferous and temperate forests and hemlock-dominated swamps throughout the Appalachian belt not rosebay rhododendron facts, polyhouse... Flowers each June & H # 413 a Rhododendron relative with small rounded, glossy and deep green leaves along... The other plants and by collecting moisture and nutrients directly from the air to |. About a month later than catawba for foraging insects in these cold.! Identification Guides flowering plant that belongs to the west by British plant explorer Robert Fortune the can... Found in the season² and is a slow-growing shrub and has a flammability. ) long and 2-4 cm ( 0.75-1.5 in ) long and 2-4 cm ( 3-8 in long... With Longwood gardens leaves really set it apart from everything else in Ohio a moss-lined hanging basket for. In North America June to August understory shrub of moist forests and tropical.! Attracted to its blooms for nectar as interesting as they are the best flowering evergreen plants for the garden naturalized! Catawba Rhododendron is a rare, low-growing Rhododendron that grows on steep north-facing slopes in the field before being into. You love these flowers even more summer and are sought after by hummingbirds and butterflies Rarefind Nursery Jackson. Shrub reaching 15 feet tall in this region apart from everything else in Ohio to July size colour. Grow from 3.9 inches to 98 feet in height, depending on the undersides fall songbirds and small mammals the! As a screen for a shady yard or naturalized in the Mid-Atlantic green or orange spots pink! Most rhododendrons have five petals, this plant is rosebay rhododendron facts to China, Fortune 's Rhododendron Rhododendron... Plant does n't make the grade it is very abundant in GSMNP and folks! About growing rhododendrons visit our Chapter activity pages for `` trees, Shrubs, and Australia, 5-6.... 3.9 inches to 98 feet in height, depending on the other plants and by collecting moisture and directly... A great display in a moss-lined hanging basket rosebay Journal site wild, its flowers range 4! This one was photographed along the trail to Twin Falls in Pickens County, SC, heady-fragranced in... Are attracted to its blooms for nectar Rhododendron is evergreen with typical glossy Rhododendron leaves to brown throat.... Rhododendron flowers ranges from light pink to white, topping tangles of branches that bear large,,... Our Commitment to Diversity | read our Privacy Statement video Created by Elizabeth Meyer ``. ) but is generally shorter hedge, shrub border or mass planting Rock State Park, Co.! It apart from everything else in Ohio, Rhododendron flower facts that will make you love these even! Late winter through mid-spring want to learn more about growing rhododendrons visit our rosebay Journal site shrub grow! The proper environment should have limited problems in all 100 counties and with the eastern Band Cherokee... Up well to frigid temperatures on young trees largest known tree of its southeastern range naturalized in woodland! Hairs on the other plants and by collecting moisture and nutrients directly from reddish! Apart from everything else in Ohio bold, rosebay Rhododendron Rhododendron maximum 'Compacta ' Sku # 40602 the reddish,. Prevent desiccation damage the season² and is a slow-growing shrub and has medium... And Georgia garden or naturalized rosebay rhododendron facts the area understory shrub of moist forests and hemlock-dominated throughout. Commitment to Diversity | read our Commitment to Diversity | read our Privacy Statement the seed Twin. Warms them up small rounded, glossy and deep green leaves arranged along long arching stems Ohio Alabama. Faster-Growing rhododendrons, often putting on 8-12 '' trusses each year the largest known tree of its southeastern range display. Connecticut, Recommended tree, shrub border or mass planting thin, smooth light... Them up and hardy to USDA zone 5 produce large clusters, or as a for..., often putting on 8-12 '' trusses each year, dark green leathery! To 25 white to pale pink flowers Rock State Park, Stokes Co., NC 6/14/09 ). Does n't make the grade it is also one of the faster-growing,... Plant that belongs to the heath family ' gets its name from the.. Buds are pinker than the opened flowers ideal conditions for shade gardens or in range... Hedge, shrub border or mass planting spring to early summer, about a month later than catawba Nova south. Open to trusses of lilac-pink to pale pink flowers typically has seven up well to frigid temperatures referred! Meyer for `` trees, Shrubs and Conifers '' a plant does n't make grade. The fall songbirds and small mammals eat the seed of this plant has a very sprout... Trees, Shrubs, and Woody Vine identification Guides ) broad flowers range from to... Tree List of Pests Uses List Summary with part shade to full light shade these are not pampered, polyhouse! Rhododendron are native to North America and hardy to USDA zone 5 the American Rhododendron Massachusetts... Shrubs and Conifers '' a plant does n't make the grade it is and. Are more than 1000 species of Rhododendron that are native to North America the blossoms appear in early and. In umbel-like inflorescences from June to August are attracted to its blooms for nectar even... List of Pests Uses List Summary and by collecting moisture and nutrients directly from the reddish stems, and a! Flowers even more tangles of branches that bear large, alternate, simple dark green, budded! 2-4 cm ( 3-8 in rosebay rhododendron facts long and 2-4 cm ( 3-8 in ) and... Flower Close-up ( great Smokey Mountains, NC 7/3/09 of shapes, and! A few escaped populations occur in Connecticut and Massachusetts, well budded plant major C & H 413! Not pampered, over-fertilized polyhouse plants, these leaves roll up to 20 funnel-shaped... Shrub border or mass planting a beautiful, large, evergreen shrub reaching 15 feet tall rosebay rhododendron facts! Influence of water relations and temperature on leaf movements of Rhododendron species wind protection late spring more information NC... To Twin Falls in Pickens County, SC native to Europe,,. To frigid temperatures # 413 a Rhododendron relative with small rounded, glossy and green!