Its morphology and phenology are The fruit is a capsule [8,20,29]. Rhododendron calendulaceum, commonly known as flame azalea, is an upright, loosely branched deciduous shrub that typically matures to 4-8' (infrequently to 10-15’) tall and to 8-10’ wide. Rhododendron sect. While it is often planted as a horticultural in beds flanked by much-bred cultivars, it can be found occurring naturally at higher elevations along much of the east coast. Rhododendron calendulaceum The flame azalea is likely the most striking summer wildflower found on the top of the mountain. Prefers a sun dappled shade or high open part shade. Thriving in acidic soil, it prefers a pH from 4.5 to 6.5. Rissler. 100% (1/1) rhododendrons Azalea Dwarf azalea. Sold out Share this: Share on Facebook Tweet on Twitter Share on Google+ Pin on Pinterest. Flame Azalea Information. Read our Commitment to Diversity | Read our Privacy Statement. It is native primarily to woodland slopes and mountain balds in the Appalachian Mountains from Pennsylvania to Georgia. Group or specimen for shrub borders, mixed borders, open woodland gardens, native plant gardens and open shade gardens. Rhododendron calendulaceum (Flame azalea) will reach a height of 2.5m and a spread of 2.5m after 10-20 years.. It is native primarily to woodland slopes and mountain balds in the Appalachian Mountains from Pennsylvania to Georgia. This azalea is 12 years old in our garden. Rhododendron calendulaceum (Flame Azalea) grows 8-10ft tall and wide. Does not prosper in areas with high summer temperatures, and is not recommended for planting south off USDA Zone 7. Common Name: Flame Azalea. Plants … Rhododendron calendulaceum, the flame azalea, is a species of Rhododendron native to North America. Full sun can scorch the leaves and the roots rot if soil does not drain well. The Board of Trustees of the Royal Botanic Gardens, Kew. Home Rhododendron calendulaceum - Flame Azalea. Flame Azalea (Rhododendron calendulaceum) The scientific epithet calendulaceum translates to 'like a calendula', which is a genus of vascular plants with similarly colored flowers native to Macaronesia and the Mediterranean region. Clip off spent flower clusters immediately after bloom as practicable. The Flame azalea has funnel-shaped, usually non-fragrant flowers (2” diameter) that bloom in loose trusses (5-10 flowers per truss) in May-July. Acidify soils prior to planting and thereafter as needed. Rhododendron calendulaceum, or flame azalea, is an upright, loosely branched deciduous shrub that typically matures to 4-8' (infrequently to 10-15’) tall and to 8-10’ wide, though like all native azaleas, it takes a while to get there.It is native primarily to woodland slopes and mountain balds in the Appalachian Mountains from Pennsylvania to Georgia. Shallow, fibrous root systems (do not cultivate around shrubs)will benefit from a good mulch (wood chips, bark or pine needles) for retention of moisture, stabilization of soil temperatures and winter protection. … Non-fragrant. A healthy plant in the proper environment with proper care should have limited problems, however. Medium green leaves (1-3” long) are elliptic to obovate with yellow-red fall color. Diseases include canker, crown rot, root rot, leaf spot, rust, and powdery mildew. Cultivation. Funnel-shaped, usually non-fragrant flowers (2” diameter) bloom in loose trusses (5-10 flowers per truss) in May-June. Species Epithet: calendulaceum. It needs a few hours of direct sun. We used an experimental approach to determine whether butterfly wings are the primary vehicle of pollination in flame azalea. Insect problems include aphids, borers, lacebugs, leafhoppers, mealybugs, mites, nematodes, scale, thrips and whitefly. Accessed: 2020 May 08. Quantity Quantity. It is a slow plant to become established. Flame Azalea (Rhododendron calendulaceum) - 3 Gallon Pot Winner of the Rhododendron Of The Year Award by the American Rhododendron Society for the Southeast, Mid-Atlantic, North East and North West regions, Rhododendron calendulaceum, commonly known as Flame Azalea, is regarded as one of if not the most spectacular of North American Native Plants. Rhododendron x calendulaceum 'Tangerine Delight' Azalea - Flame 'Tangerine Delight' Hybrid Flame Azalea is a result of a beautiful cross between R. calendulaceum and a Knaphill Azalea. Thin and gray-brown with a finely shredded appearance. Flame Azalea Rhododendron calendulaceum. Flame Azalea is Endangered in Ohio, and has been Extirpated in Pennsylvania. Boone, North Carolina, June 1, 2006. Size: Small Medium Large Exposure/ Light Requirements: Full Shade Full Sun Partial Sun/Shade Pests and Problems: Bacterial Disease. Growing wild in the national forest near my house. Flowers have exserted (protruding) showy stamens. GENERAL BOTANICAL CHARACTERISTICS : Flame azalea is a native, deciduous, erect, much-branched shrub that grows to 10 feet (3 m) in height. Blooms:   Spring, summer           Nut/Fruit/Seed:  Late summer. Rhododendron calendulaceum is a deciduous shrub native to the Appalachian area of the eastern United States. 39 Related Articles [filter] Rhododendron. 'Flame Azalea' Flower Close up (Great Smokey Mountains, NC). Yes, it is a wild plant, much loved in these parts, and often transplanted to yards or purchased from specialized growers. Rhododendron calendulaceum has made its biggest impact as a parent in many azalea hybrids, such as the Ghent group. Flame azalea (Rhododendron calendulaceum) is visited by diverse insects, yet previous observations suggested that only butterfly wings may transfer pollen to stigmas. Flame Azalea Facts Perhaps most notably, the mesmerizing Flame Azalea stands out from the majority of related species for its exquisite beauty. Rhododendron calendulaceum has made its biggest impact as a parent in many azalea hybrids, such as the Ghent group. Foliage may scorch in full sun unless soils are kept uniformly moist. Fire Risk: This plant has a medium flammability rating. Rhododendron calendulaceum (Flame Azalea) grows 8-10ft tall and wide. (Rhododendron spp.) Winner of the Rhododendron Of The Year Award by the American Rhododendron Society for the Southeast, Mid-Atlantic, North East and North West regions, Rhododendron calendulaceum, commonly known as Flame Azalea, is regarded as one of if not the most spectacular of … Flame azalea on the blue ridge parkway. This shrub should be planted in a location protected from strong winter winds in the St. Louis area. Flame azalea (Rhododendron calendulaceum) Jump to. They are alternate, simple with either smooth or toothed margins. Product Code: R. V2. This species is an important parent of many deciduous azalea hybrids.Genus name comes from the Greek words rhodo meaning rose and dendron meaning tree. Hummingbirds, butterflies and other pollinators are attracted to the nectar. The habit is mounded with deciduous foliage, topped by large showy clusters of fragrant orange and peach colored flowers in May and June. 2.0 The Flame Azalea, Rhododendron calendulaceum Rhododendron calendulaceum has always been one of the most highly prized of our American native azaleas. Flowering When Rhododendron calendulaceum has been observed flowering at Longwood Gardens Large blossoms are held in groups of 5 or more, and bloom in shades of yellow, orange and red. In late midseason, as leaves emerge or just after, this plant bears lax trusses of yellow to dark reddish orange flowers. form a strategic partnership called N.C. Plants develop an irregular, loose mounding form extending 4-8' tall and 8-10' wide. The flowers have exserted (protruding) showy stamens. Although it is native to the southeastern U. S. (particularly on rocky balds in the Appalachian mountians), it is regarded as introduced in New England, where it reaches the northern edge of its range. Flame Azalea (Rhododendron calendulaceum) It's not too uncommon to see these remarkable shrubs planted and used in cultivation throughout the acidic soiled regions of Ohio. Attracts butterflies, bees and other beneficial insects. rhododendron calendulaceum - flame azalea plant care and culture Cultural information should only be used as a guide, and should be to be adapted to suit you. All parts of this plant are poisonous to humans. Facebook. Although other station regulars such as the great rhododendron ( Rhododendron maximum ) and other species of wild azalea share its genus, the overwhelming majority of more than 800 Rhododendron species are native to Southeast Asia. Rhododendron calendulaceum - Flame Azalea. Sold out Share this: Share on Facebook Tweet on Twitter Share on Google+ Pin on Pinterest. Flame azalea in southern Finland. These deciduous dazzling beauties begin to blaze forth, with blooms begin in early April in zone 7a, and last for most of the month for us. Accessibility Help. This species is an important parent of many deciduous azalea hybrids. The most showy of all native azaleas. Genus: Rhododendron. The association between floral longevity and male and female function in Rhododendron calendulaceum. SPECIES: Rhododendron calendulaceum GENERAL BOTANICAL CHARACTERISTICS : Flame azalea is a native, deciduous, erect, much-branched shrub that grows to 10 feet (3 m) in height. Torr. Flame Azalea (Rhododendron calendulaceum). This is probably the most commonly seen Azalea in the mountains of N.C. 2.0 The Flame Azalea, Rhododendron calendulaceum Rhododendron calendulaceum has always been one of the most highly prized of our American native azaleas. Its morphology and phenology are highly variable [ 28 ]. It is a deciduous azalea with flowers that can vary in color. Found in: AL, CT, GA, KY, MD, NC, NY, OH, PA, SC, TN, VA, WV This example from Polk County, TN Journal Articles Referencing Rhododendron: Distribution of Rhododendron calendulaceum in the United States and Canada: Probably the first to appreciate its beauty were the Cherokee Indians who called it the ”Sky Paint Flower” because its colorful blooms could mimic a brilliant sunset. It grows to 8 feet tall and wide. We used an experimental approach to determine whether butterfly wings are the primary vehicle of pollination in flame azalea. Flame The common name of flame azalea is in reference to the purported resemblance of the upright flower buds to candle flames. Below are abbreviated descriptions of … Large blossoms are held in groups of 5 or more, and bloom in shades of yellow, orange and red. Rhododendron calendulaceum This plant’s leaves are mid-green, and softly hairy on both sides. 1999. A deciduous shrub up to 10 feet high and 15 feet wide with clusters of large yellow to orange flowers, this unusually colored azalea lights up woodland or wayside like a bush afire. Your physical location; where you grow your plants, how much time you have to devote to their care, and many other factors, will need to be taken into account. It is found wild out in nature, but also has been domesticated and is popular in residential areas like many other rhododendron species. Size: Small Medium Large Exposure/ Light Requirements: Full Shade Full Sun Partial Sun/Shade Pests and Problems: Bacterial Disease. … Genus: Rhododendron. The flowers are larger than most of the natives, measuring from 1.5 to 2.5 inches across, and come in a wide range of colors from clear yellow, through shades of orange, to brilliant red. Flame Azalea is a common deciduous large shrub of the Mountains and adjacent Piedmont with flame-colored flowers. NC State University and N.C. A&T State University work in tandem, along with federal, state and local governments, to Best grown in humus-rich, sandy, moist or moist but well-drained, acid soil in partial shade. For more multimedia, look at Rhododendron calendulaceum on Wikimedia Commons. Rhododendron calendulaceum (Michx.) R. calendulaceum (Flame Azalea) $15.00. Deep shade (Less than 2 hours to no direct sunlight), Full sun (6 or more hours of direct sunlight a day), Partial Shade (Direct sunlight only part of the day, 2-6 hours). It is native primarily to woodland slopes and mountain balds in the Appalachian Mountains from Pennsylvania to Georgia. The most showy of all native azaleas. Press alt + / to open this menu. The 2 inch, non-fragrant flowers are borne in open trusses just as their leaves are beginning to come out. Flame azalea, Rhododendron calendulaceum, is one of the most spectacular flowering shrubs of the Appalachian Mountains. Zone 5-7 Note, most of this years crop of flame azaleas do not have flower buds Size. Rhododendron calendulaceum, also known as the Flame Azalea, is surely one of the most spectacular native shrubs of the Appalachian Mountains. A remarkable deciduous azalea with a sprawling native range that extends throughout the Appalachian Mountain region of eastern North America. Best grown in acidic, light, sandy, well-drained soils in part shade. Insects, Diseases, and Other Plant Problems:  Rhododendrons are susceptible to insect and disease problems. Cooperative Extension, which staffs local offices in all 100 counties and with the Eastern Band of Cherokee Indians. Glowing, 2" tubular flowers appear in late May and range in color from yellow to oranges and reds. Attracts butterflies, bees and other beneficial insects. 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