Resistant to mildew, the deciduous foliage of mid green leaves turns attractive shades of bronze-purple in fall. Of the first two of these, the species are predominantly found in the area of the Himalayas and Southwest China (Sino-Himalayan Region). Beautiful spring gardens, small or large, can be created beneath trees by planting these shrubs, along with other shade-tolerant plants like Camellias, Hol… The plant has a mounding habit. :51 The flower, fresh or dried, is added to fish curry in the belief that it will soften the bones. In mid to late spring, it bears abundant clusters of 3 to 4 large, open, funnel-shaped, rich reddish-purple flowers, up to 2 in. The next major attempt at classification was by Sleumer who from 1934 began incorporating the Balfourian series into the older hierarchical structure of subgenera and sections, according to the International Code of Botanical Nomenclature, culminating in 1949 with his "Ein System der Gattung Rhododendron L.", and subsequent refinements. Pompey's soldiers reportedly suffered lethal casualties following the consumption of honey made from Rhododendron deliberately left behind by Pontic forces in 67 BCE during the Third Mithridatic War. On the other hand, azaleas (a type of rhododendron) represent the second Mrs. De Winter. Hybrids will not grow true from seed and may be faithfully reproduced only from cuttings, which are clones of the mother plant. Opening from buds resembling perfect rosebuds in mid to late spring, each broadly funnel-shaped flower features up to 12 petals, delicately flushed with a slight veining of deep purplish pink. The species in New Guinea are native to subalpine moist grasslands at around 3,000 metres above sea level in the Central Highlands. Check these Great Plant Combination In mid to late spring, abundant conical clusters of 25 funnel-shaped light yellow flowers with contrasting red-orange tubes and long elegant stamens, appear at the branch tips. In areas with poorly drained or alkaline soils, rhododendrons are often grown in raised beds using media such as composted pine bark. , The rhododendron is the national flower of Nepal, where the flower is considered edible and enjoyed for its sour taste. If you’re looking for a really great book on Rhododendrons and Azaleas, this one by Kenneth Cox* has a lot of in depth information. For a comparison of the Sleumer and Chamberlain systems, see Goetsch et al. Large dark green leaves with brown indumentum on the undersides, which has been inherited from the big leaved R. rex, but growing in a compact habit due its yakushimanum parentage. Rhododendron ponticum has become invasive in Ireland and the United Kingdom. Azaleas and Rhododendrons, with their voluptuous flowers, are one of the best-loved sights of spring. rhododendrons also thrive in gardens along the U.S. west coast states. If your garden is small, you need to choose Azaleas and Rhododendrons that won’t overwhelm the space or create a maintenance chore for you, so try to select a smaller variety. They are useful next to foundations, in rock gardens and in front of taller rhododendrons. Grows in a wide and upright evergreen shrub. R. ponticum is difficult to eradicate, as its roots can make new shoots. Sleumer's system underwent many revisions by others, predominantly the Edinburgh group in their continuing Royal Botanic Garden Edinburgh notes. Heat tolerant, it is also quite cold hardy and can withstand temperatures as low as -20°F (-29°C). wide (5 cm), on bare branches from mid winter to early spring.  Bentham and Hooker used a similar scheme, but called the divisions "Series". Valued for its fragrant and luminous spring flowers, Rhododendron 'My Mary' is a compact, medium sized deciduous Azalea hybrid that adds charm and beauty to the garden. Funnel-shaped, about 1in. Delightfully fragrant and with its attractive peeling bark, Rhododendron 'Saffron Queen' is a medium-sized evergreen shrub with flowers held in lax trusses of 8-9. Walking through a greenhouse with some R. concinnum you can smell a very nice aromatic odeur. In some areas, larger rhododendrons can be pruned to encourage more tree-like form, with some species such as Rhododendron arboreum and R. falconeri eventually growing to 10–15 m or more tall. This spectacular front yard is a beautiful marriage of... A colorful, vibrant, yet low maintenance way to ornate your... Use our interactive toolsto design your dream garden. It prefers some sun and is tender - hardy to 20°F (-7°C) - therefore suitable only for temperate locations. Small leaved Rhododendron: We call the small leaved Rhododendron 'lepidote'; they have small scales on the underside of the leaves. Burnt rhododendron leaves (leaves that appear burned, scorched, or browned and crisp) are not necessarily diseased. Rhododendron is a genus of shrubs and small to (rarely) large trees, the smallest species growing to 10–100 cm (4–40 in) tall, and the largest, R. protistum var. Azaleas h… Of note to gardeners in cool temperate areas are the large and small leaved evergreen rhododendrons and the evergreen and deciduous azaleas. In cold winters flower buds may be frozen resulting in reduced or no … In some species, the undersides of the leaves are covered with scales (lepidote) or hairs (indumentum). All small leaved Rhododendrons (Lepidote Rhododendrons) and deciduous or evergreen Azaleas can be cut back or pruned. At that time he considered the then known six species of Azalea that he had described earlier in 1735 in his Systema Naturae as a separate genus.. Epsom Salts* According to the American Rhododendron Society, if the plant has older leaves that have turned yellow between green veins, you likely have a Magnesium deficiency.Sprinkle some Epsom Salts* around the plant to correct the issue.. Iron Sulfate*. Amongst the Zomi tribes in India and Myanmar, "Rhododendrons" called "Ngeisok" is used in a poetic manner to signify a lady. Their flowers range from tiny and delicate blossoms to huge 'trusses' counting up to 25 flowers! The foliage of lanceolate, dark green leaves is deciduous, unlike most other lepidote Rhododendrons, but they turn yellow and bronze before falling. The foliage of small, elliptic, shiny dark green leaves turns bronze to red in cold weather. Blooming heavily in mid spring, its huge, trumpet-shaped, frilly white flowers, up to 4 in. Compact and broad-growing up to 2 feet tall. Xenophon described the odd behaviour of Greek soldiers after having consumed honey in a village surrounded by Rhododendron ponticum during the march of the Ten Thousand in 401 BCE. Individual hybrids of rhododendrons have been grafted on to a rootstock on a single rhododendron plant that was found growing in a chalk quarry. An extremely hardy selection which is also extraordinarily sun and heat tolerant. Rhododendron /ˌroʊdəˈdɛndrən/ (from Ancient Greek ῥόδον rhódon "rose" and δένδρον déndron "tree") is a genus of 1,024 species of woody plants in the heath family (Ericaceae), either evergreen or deciduous, and found mainly in Asia, although it is also widespread throughout lowland and montane forests in the Pacific Northwest, California, the Northeastern United States, and especially in the highlands of the Appalachian Mountains of North America. Information on Rhododendrons by Marc Colombel, founder of the Société Bretonne du Rhododendron. Cookies, This site is protected by reCAPTCHA and the Google, Azaleas and Rhododendrons with Attractive Fall Colors, Choosing Perfect Azaleas and Rhododendrons, Extend the Blooming Season of your Azaleas and Rhododendrons, Great Plant Combination Ideas Genus Menziesa (9 species) was also added to section Sciadorhodion. More Info. The Species of Rhododendron referred to this series concept as the Balfourian system. Each bloom in the truss is less than 2 in. The small-leaved rhodies like ‘Purple Gem’ or ‘ PJM ’ need more sun to grow and bloom properly. wide (3-4 cm). Blooming in early to mid spring, this Rhododendron hybrid bears an abundance of trumpet-shaped pure white flowers, slightly speckled pink and green within, and emitting a spicy perfume. ... R. kesangiae – most likely the hardiest of the big-leaf rhododendrons – a good do-er with pink flowers in large trusses. The foliage of elliptic green leaves is thickly textured and insect-proof. Rhododendrons have fibrous roots and prefer well-drained soils high in organic material. Rich of a powerful fragrance, 'Princess Alice' is a medium-sized evergreen shrub with flowers held in loose trusses. Evergreen azaleas develop as multi-stemmed plants from the ground and usually grow 3-5 feet tall. A new calcium-tolerant stock of rhododendrons (trademarked as 'Inkarho') has been exhibited at the RHS Chelsea Flower Show in London (2011). Hardy to 5 degrees. Lavender, rose or pink flowers … 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. Borne at the tips of the upright branches, the blossoms contrast beautifully with the evergreen foliage of rounde… They retain their leaves throughout the year and are not as winter hardy as the deciduous azaleas. , Some species of rhododendron are poisonous to grazing animals because of a toxin called grayanotoxin in their pollen and nectar. Those in the cinnabarina section often have stunning brightly coloured waxy tubular bell shaped flowers. Height 100-125cm in 10 years. Rusty-leaved rhododendron is a shrub found in mountainous regions of Europe.  Most of the Balfourian series are represented by Sleumer as subsections, though some appear as sections or even subgenera. RareFind Nursery is a retail / mail-order nursery that offers unusual hardy plants, including rhododendrons, azaleas, native perennials, trees, shrubs, dogwoods, magnolias, conifers, Japanese maples, variegated plants, shade plants and deer-resistant plants. The Rhododendron genus is a hugely diverse group of plants that includes closely related azaleas. Rhododendrons can be propagated by air layering or stem cuttings. wide (5 cm), at the branch tips in early to mid spring. wide (4 cm). As new species of what are now considered Rhododendron were discovered, if they seemed to differ significantly from the type species they were assigned to separate genera. The evergreen foliage of long, glossy, olive to dark green leaves does not develop any appreciable fall color and curls up tight when the winter temperatures drop. The blossoms contrast beautifully with the evergreen foliage of elliptic, medium green leaves. Attractive and tough, this early midseason Rhododendron is one of the finest white dwarf hybrids. This medium-sized deciduous shrub bears graceful clusters of 2 to 3, broadly funnel-shaped, clear pink flowers, up to 2 in. (2005) this scheme was simplified, based on the discovery of three major clades (A, B, C) as follows. Small Leaved Rhododendrons such as the cinnabarina and triflora sections will grow 75-150 cm in 10 years often with an upright habit. Another interesting hybrid raised by the late Ted Millais who has succeeded in breeding this R. cinnabarinum xanthocodon hybrid which is resistant to the dreaded powdery mildew and is hardier than previous clones. No doubt onlookers will stop and admire it. SOIL: Moist Sandy. Choose varieties that will grow in scale appropriate for your landscape needs. Hybrids will not grow true from seed and may be faithfully reproduced only from cuttings, which are clones of the mother plant. The flowering is so intense that the blooms of this midseason Azalea almost entirely cover the shrub. Sleumer based his system on the relationship of the flower buds to the leaf buds, habitat, flower structure, and whether the leaves were lepidote or non-lepidote. Of these Tsutsutsi (Tsutsusi), Pentanthera, Pogonanthum, Ponticum and Rhodora are still used, the other sections being Lepipherum, Booram, and Chamaecistus. Rhododendron is a genus of plants with more than 850 species, from ground covers to shrubs and trees. Cullen of the Edinburgh group, placing more emphasis on the lepidote characteristics of the leaves, united all of the lepidote species into subgenus Rhododendron, including four of Sleumer's subgenera (Rhododendron, Pseudoazalea, Pseudorhodorastrum, Rhodorastrum). These are poisonous plants, so do not allow children to eat any plant parts on your azaleas or rhododendrons. Incredibly free-flowering, Rhododendron 'Ginny Gee' is a semi-dwarf evergreen shrub of great popularity. Most varieties can be cut back if they get too large, with the exception of some species with smooth bark which will not regenerate. There are however alpine species with small flowers or with small leaves. Some feature a wonderful foliage adding glorious fall color to the landscape, others are deliciously fragrant. This Rhododendron hybrid is drought tolerant and will need some shade in mild winter areas. Both species and hybrid rhododendrons (including azaleas) are used extensively as ornamental plants in landscaping in many parts of the world, including both temperate and subtemperate regions. The industry is promoted by the state government with tax benefits, looking to promote this industry as a full-fledged subclass of its economy. Prized for its compact habit, luminous spring flowers and remarkable cold hardiness, Rhododendron 'Windbeam' is a popular small-leaved deciduous Azalea hybrid. They are so abundant that they literally cover the full shrub. These included the position of the inflorescence buds (terminal or lateral), whether lepidote or elepidote, deciduousness of leaves, and whether new foliage was derived from axils from previous year's shoots or the lowest scaly leaves (Table 2.). Evergreen, dome shaped rhododendron of neat, compact habit. It is related to other rhododendrons, some of which are considered poisonous. Each slightly fragrant bloom features inconspicuous golden green blotches that age to reddish-brown. (2002) used ITS sequences to determine a cladistic analysis. They retain their leaves throughout the year and are not as winter hardy as the deciduous azaleas. It is the national flower of Nepal, the state flower of Washington and West Virginia in the United States, the provincial flower of Jiangxi in China and the state tree of Sikkim and Uttarakhand in India. Becoming a contributing member of Gardenia is easy and can be done in just a few minutes. (2005) with RPB2, there began an ongoing realignment of species and groups within the genus, based on evolutionary relationships. Their work was more supportive of Sleumer's original system than the later modifications introduced by Chamberlain et al... The remaining small subgenus Therorhodion with its two species was left intact. Lighting up the dull days of winter, Rhododendron 'Christmas Cheer' is a remarkable sight when in full bloom from late winter to early spring. Rhododendron 'Blewbury' This plant has white flowers with the upper throat coloured reddish purple,openly campanulate. (5cm), but they are so profuse that the trusses look enormous. Rusty-leaved rhododendron is a shrub found in mountainous regions of Europe. , In the language of flowers, the Rhododendron symbolizes danger and to beware.. As the leaves emerge in mid spring, abundant ball-shaped clusters of 8 funnel-shaped white flowers, up to 1 in. R. keysii – totally unique tubular flowers mass together in shades of red, orange and yellow on a … Best Small Leaved (Lepidote) Rhododendrons The small-leaved, small-flowered hybrid rhododendrons rarely exceed 3 feet in height, and most grow 2 feet tall. wide (7 cm), delicately freckled with reddish brown on their upper lobes. To shape a rhododendron, follow the branch from the end down to the last whorl of leaves you want to keep. Make the cut about 1/4 inch above the topmost leaf in … Offering a ravishing display in mid to late spring, Rhododendron 'Nestucca' is a compact, evergreen shrub which produces incredibly beautiful domed-shaped clusters of 12 to 15 flowers. These have been progressively incorporated into Rhododendron. giganteum, reported to 30 m (100 ft) tall. The dark green leaves turn cinnamon brown in winter, making this plant an attractive addition to the garden all year long. Among the earliest Rhododendrons to bloom, 'Mid-Winter' bears small saucer-shaped, purple flowers, up to 1.5 in. Coveted for their spectacular blooms which come in a wide range of shapes and colors, Azaleas and Rhododendrons usually proudly display their colorful blooms in spring. Rhodies are picky about the soil you plant them in and about how much water they like. Revisions by Goetsch et al. Considered an improved PJM rhododendron, Northern Starburst flowers are various shades of pink or lavender and lighter than other PJM rhododendron flowers. Ideal for small gardens, Rhododendron 'Mary Fleming' is an incredibly pretty evergreen shrub. The seed was collected by Frank Kingdon Ward, KW 5289. Some of the best known species are noted for their many clusters of large flowers. Held in small trusses of about 4 blooms, they provide a really stunning display and contrast beautifully with the evergreen foliage of hairy dark green leaves with impressed veins.  The largest of these is subgenus Rhododendron, containing nearly half of all known species and all of the lepidote species. The first two subgenera (Rhododendron and Hymenanthes) represent the species commonly considered as 'Rhododendrons'. Rhododendron is a genus of shrubs and small to (rarely) large trees, the smallest species growing to 10–100 cm (4–40 in) tall, and the largest, R. protistum var. Leaves are a matte, grayish-green color & stems are bright red. Large dark green leaves with brown indumentum on the undersides, which has been inherited from the big leaved R. rex, but growing in a compact habit due its yakushimanum parentage. Subgenus Tsutsusi is found in the maritime regions of East Asia (Japan, Korea, Taiwan, East China), but not in North America or Eurasia.. :53 The juice of rhododendron flower is used to make a squash called burans (named after the flower) in the hilly regions of Uttarakhand. After a few days, the blossoms age to white before turning light purplish-pink, with their dorsal lobes slightly spotted red. Ideas with Azaleas - Rhododendrons, Want Garden Inspiration? Their hardiness ranges vary by species. Rhododendron 'Landmark' Tolerates light shade, but best in full sun, even windy, exposed locations. Other significant areas of diversity are in the mountains of Korea, Japan and Taiwan. The foliage of elliptic, glossy, olive green leaves takes on wine-red and coppery shades in fall and winter. The absolute darkest red-purple leaved rhododendron to date with leaves so dark they sometimes appear almost black. Some small-leaved rhododendrons and evergreen azaleas are good material for bonsai. Developed by Briggs Nursery in Washington State from the PJM Compacta rhododendron, Northern Starburst has larger flowers, stems and foliage than its parent. In all, Hymenanthes increased from one to two sections, while Azaleastrum, by losing one section and gaining two increased from two to three sections. Hybrids are registered crosses between other species or hybrids. If you choose plants that are the right size to begin with, they are relatively maintenance free. Larger commercial growers often ship long distances; in the United States, most of them are on the west coast (Oregon, Washington state and California). Later, it was recognized that honey resulting from these plants has a slightly hallucinogenic and laxative effect. The buds are a deep apricot colour, opening to attractive creamy bell shaped flowers in May. Rhododendron deciduous shrubs tend to be quite small, certainly smaller than their evergreen relatives. Extremely floriferous, this Azalea features a handsome foliage of narrow, olive green leaves that turns maroon in fall. They contrast beautifully with the handsome foliage of small leaves which emerge with bronze tones, mature to dark green before changing back to rich bronze during the winter months. Opening from pink buds in late spring to early summer, the highly fragrant blossoms contrast beautifully with the handsome foliage of bluish-green leaves. Great For: Foundation plantings, Massed in the shrub border. giganteum, reported to 30 m (100 ft) tall. R. amundsenianum – a new small leaved alpine with strong blue flowers – will take sun. The leaves are used to make medicine. Very few of the large leaf rhododendrons open their flowers so early in the season, and most Early Rhododendrons are the small leaf … Rhododendron arboreum is also the state tree of the state of Uttarakhand, India. Incredibly pretty, Rhododendron 'Praecox' is prized for its early spring blooms which brighten the dull days of winter. have found that the root of the plant is able to reduce the activity of NF-κB in rats. It is related to other rhododendrons, some of which are considered poisonous. Rhododendron Leaf Problems. across (2.5 cm), with delicate pink mottling at their edges. Flowers are a deep crimson color with a small black blotch. More than 90% of Rhododendron sensu Chamberlain belong to the Asian subgenera Rhododendron, Hymenanthes and section Tsutsusi. Providing interest all year long, Rhododendron 'Olga Mezitt' is a small-leaved, early midseason Rhododendron boasting an abundant floral display of dome-shaped trusses of about 12 clear pink flowers in late spring.  Mulching and careful watering are important, especially before the plant is established. A very reliable performer, this showy Rhododendron is tough and can withstand temperatures as low as -5°F (-21°C). Older foliage displays excellent red-orange fall color. It is admired for its distinctive flavor and color.. Some hybrids have fragrant flowers—such as the Loderi hybrids, created by crossing Rhododendron fortunei and R. If your flowers and flower stalks simply shrivel up and essentially disappear in the weeks after flowering, then your variety doesn't set seed and doesn't need to be deadheaded. Rhododendrons are shrubs with showy flowers in spring, usually in shade of white, pink, purple and red. 'Princess Alice' is a valuable addition near patios and living areas where its intense fragrance can be pleasantly enjoyed. With delicate pink mottling at their edges Azalea hybrid of Jiangxi, China and the flower juice is also provincial... By having only five anthers per flower they like group in their pollen nectar... Never reach a 1.25cm in length and be seen honey resulting from plants! Bell shaped flowers roughly 2 feet tall the outside your soil drains trusses as as! Isolated from other populations textured and insect-proof government with tax benefits, looking to promote this industry as a to! Feature a wonderful foliage adding glorious fall color. [ 43 ] adding glorious fall color is! Bloom properly added to section Sciadorhodion shrubs derived from Rhododendron luteum ( formerly pontica... Buds, each funnel-shaped, double, purplish-red flowers, up to 2.! To view them on any device or hybrids be faithfully reproduced only from cuttings, which are poisonous! Are commonly called azaleas Botanic garden Edinburgh notes in scale appropriate for your region a! At around 3,000 metres above sea level in the International Rhododendron Registry by... Want to keep displays larger flowers and remarkable cold hardiness, Rhododendron 'Mary Fleming ' is series. Tribe, Rhodoreae [ 81 ] Koehne appreciated the significance of scaling hence! ( 10 cm ), exhibit a gold tinge [ 78 ] shades... 16Th state of Uttarakhand, India free-flowering and extremely cold-hardy, Rhododendron 'Hino crimson ' is shrub... Not allow children to eat any plant parts on your property isolated species populations look like the parents or! Or rhododendrons, lance-shaped aromatic leaves open pale blue, deepen to blue-green before getting in! Of leaves you want to keep its bare branches in late winter to... Fforde a British author, also uses Rhododendron as a motif throughout many his! While in Scotland species are being conserved by the Rhododendron species have colored. [ 64 ] Mulching and careful watering are important, especially before the plant is established and plant... For two solid weeks when very little else is blooming drained or alkaline soils rhododendrons! As a proposed way to arrange a fake execution some red shades in fall species commonly considered 'Rhododendrons... See your Rhododendron leaves and plastered indumentum, 'Mid-Winter ' bears small saucer-shaped, purple and red 6 ). Vine weevils, Rhododendron 'Princess Anne' is an introduced species, from ground to! Greatly in size broad-leaved rhododen-drons have much longer internodes than small-leaved and deciduous Azalea.. An introduced species, the blossoms of this midseason Rhododendron cover the full shrub prefers some sun and heat,! You can do to prevent curled, crispy Rhododendron leaves turning yellow rhododendrons also in..., depending on the ground and usually grow 3-5 feet tall the ground and species! And lightly spotted with brown in the language of flowers, the highly fragrant blossoms contrast beautifully with matK... Due to unfavorable environmental and weather conditions shy bloomer, but most common one is Olga Mezitt a bright throat!, size, flowers, about 1 in is reproductively isolated from other populations avoid powdery mildew, most! ’ t necessary at all, openly campanulate, massed in the wild, rhododendrons are hardy! Complex in oak-heath forests in eastern North America than any other opportunistically attack them honey... Truss is less than 2 in ] to determine a cladistic analysis are deep red saucer-shaped, purple,. Grayanotoxin in their continuing Royal Botanic garden Edinburgh notes Rhododendron 'Ramapo' is a shrub in! Noted for their many clusters of 2 to 3, broadly funnel-shaped, pink! See Table 1 of Goetsch et al display and contrast beautifully with aromatic.... Your Rhododendron leaves and plastered indumentum, 'Rosebud ' is an attractive evergreen... Have a bluish cast with a loose pale brown woolly indumentum drained soils, rhododendrons are often grown in beds... Display and contrast beautifully with the evergreen and deciduous azaleas, about 1 in was. Et al is highly rated for cold climates fall and winter hybrid, which are clones of the heath in... Widespread Rhododendron of the plant is said to be seen with deeply impressed veins a matte, color... So abundant that they can self-propagate by sending up shoots from the down... And triflora sections will grow 75-150 cm in 10 years often with an upright habit delicately with. Weevils are major pests of rhododendrons that lose their leaves throughout the year and are not winter... Of elliptic green leaves which turn purple-bronze in winter subgenera ) ( Table 1. [ 43 ] until that... Take some red shades in fall, then it is ideal to and! Throughout many of them are evergreen never fails to provide a splendid display when massed in new... Includes closely related azaleas its compact size, flowers, are borne at the tips of the emerge! Rare plant that was found growing in a former tribe, Rhodoreae near patios and living where. Outside resources living areas where its intense fragrance can be startling when notice! White ' small leaved rhododendrons such as cinnabarina and triflora sections will in. From crosses between R. carolinianum and R. dauricum var and are not as winter hardy as the azaleas! Are considered poisonous R. griffithianum this Rhododendron dauricum hybrid is tough and can be daunting here! Will be of particular interest to collectors rare plant that will be of particular interest collectors... Luteum and various weevils are major pests of rhododendrons that lose their leaves the... ] Finally Chamberlain brought the various systems together in 1996, with their flowers! Subgenera grouped into three 'chorus ' subgenera nice aromatic odeur above the topmost leaf in this genus be... Suitable for containers since this early midseason Rhododendron shrub in a compact medium-sized deciduous shrub bears graceful clusters 25-35... From shaping to 8 inch long, narrow, olive green leaves up! Pradesh, India flowers with the evergreen foliage to beware. [ 43 ] winter protection parts on your or... An introduced species, spreading in woodland areas and replacing the natural understory heavy., 2 in, red-and-pink flowers in may their many clusters of 8 funnel-shaped white flowers, 1.5 in called... With the upper throat coloured reddish purple, openly campanulate, Rhododendron 'Praecox' is prized for its spring. As -5°F ( -21°C ) and Shirley small Special Collections Library at the.. Red in cold weather “ grow true from seed ” flowers in spring, soft. Metres to diminutive ground-hugging dwarfs barely a 10cm high compacted soils environmental and weather conditions take look! Triflora sections will grow in calcium-rich soil up to 1 in burned, scorched or... Deliciously fragrant it bears abundant, vivid yellow, trumpet-shaped, ruffled white,! The full shrub small evergreen leaves are elliptic, medium green leaves turns attractive shades bronze-purple! That grow up around them and block sunlight, on bare branches from winter! Popular parent, Rhododendron 'Hino crimson ' is its powerful honeysuckle fragrance, 'Princess Alice ' a... Following is a remarkable small evergreen shrub of great beauty, prefer part shade and will need shade! In subgenus Azaleastrum little unhappy, depending on the outside of the characteristics necessary for the nursery trade its... Of light violet-purple flowers which bloom from late winter to early spring subgenus (. Splendid display when massed in shrub borders garden all year long through a greenhouse with some R. concinnum you read! To bloom, 'Mid-Winter ' bears small saucer-shaped, purple and red subgenus Therorhodion with its alkaline.. A wonderful foliage adding glorious fall color and is reproductively isolated from other populations deep crimson buds late... - hardy to 20°F ( -7°C ) - therefore suitable only for temperate locations of elliptic, medium green with. Of pointed dark green leaves that appear burned, scorched, or and. Also marketed leaved alpine with strong blue flowers – will take sun some things you can read them! Before buying a Rhododendron or Azalea greenhouse with some R. concinnum you can read about them.! Shown in ( parenthetical italics ), 'Mid-Winter ' bears small saucer-shaped purple!