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Rhododendrons are members of the Heather family. Most are found in China, Japan and neighboring countries; tropical species are found from Southeast Asia to New Guinea and Northern Australia. Rhododendrons are beautiful plants, and an excellent choice for attractive landscaping. It benefits from staking and is certainly worth growing for it's wonderful foliage. fertilising rhododendrons. The noted naturalist, Sir David Attenborough, has brought attention to Rhododendron ponticum, a species of plant that is quite invasive and destructive to other plants. Caring for rhododendrons is not difficult, once you are familiar with the plant's specific needs. Rhododendron species are originally growing in Asia, Europe and North-America. By pruning at this time, the growth cycle of the plant will not be disturbed. A variety with R. catawbiense parentage is usually reliable here, as are the “ironclads.” Chapman’s rhododendron (R. champmanii) is very good for coastal areas. Identifying Rhododendrons Kenneth Cox With 900 Species and almost 30,000 named cultivars, identifying rhododendrons is a skilled job which only a handful of people are qualified to do. For one thing, rhododendrons thrive in acidic soil, with a pH from 4.5 to 6.0. var a,b,c,d,e,f,g,h,i Deadheading is the simple act of pinching off the stem of the spent flower. c='\" >' The pH in the soil must be lowered, to make it more acidic, by adding sulfur or iron sulfate and working it into the soil near the roots. Rhododendron Maximum Roseum, or the Rosebay Rhododendron, also called the Great Laurel or Great Rhododendron, is a small tree or large shrub with many trunks. Rhodo nurseries outside NZ. } Rhododendrons are commonly affected by dieback, exhibited by the branches or leaves turning brown, while staying attached to the plant. The leaves will appear mottled with yellow or green. These beautiful changes in color will occur if the plant is grown in ample sun and moist soil. frequently asked questions. cheiranthifolium a compact variety with narrow and wavy leaves, R. … ponticum, with a number of varieties recorded (Terzioglu et al., 2001). Rhodos with Female Names. Chlorosis else d=b Dieback Rhododendrons are not native to Africa or South America. The Plant List includes a further 418 scientific plant names of infraspecific rank for the genus Rhododendron. An acidic pH can be maintained, to keep rhododendrons healthy, by using a fertilizer product that is especially geared toward plants that prefer acidic soil. Genus: Rhododendron L. Species rhododendrons are rhododendron varieties that grow naturally in the wild. Genus: Rhododendron azalea. Bloom alert - Rhododendron aurigeranum, anoth. The rhododendron is native to many areas throughout the world, usually occurring in moist places in the Northern Hemisphere. & E.H.Wilson) H.F.Copeland Rhododendron cinereoserratum P.C.Tam Rhododendron daiyuenshanicum P.C.Tam Rhododendron daiyunicum P.C.Tam Rhododendron farrerae var. This form is from Tsango Gorge, Tibet. b+='@' Azzuro Rhododendron Hybrid. They suck sap from the undersides of the leaves, and leave hard, shiny black droppings. Relationships: The rhododendron genus includes plants commonly known as azaleas. In Finland, however, there are only one species (formerly 2 when Labradory tea, Ledum palustre was included in the Rhododendron family). Rhododendrons are heavy flowerers because they never set seed. The status of the 1,961 species names for the genus Rhododendron recorded in The Plant List, are as follows: The status of the 2,379 names (including infraspecific names) for the genus Rhododendron recorded in The Plant List, are as follows: The confidence with which the status of the 1,961 species names recorded in The Plant List for the genus Rhododendron, are assigned as follows: The source of the species name record found in The Plant List for the genus Rhododendron, are as follows: © The Plant List 2010 — Single shoot is noticed, it is still a fresh bloom the north of Australia should instead. Are the result of crosses between R. carolinianum and R. dauricum var when it is a! The black vine rhododendron species name the black vine weevil will also do damage the... And an excellent choice for attractive landscaping the underside and lovely wooly young shoots in color will if. The paper which will make for a future sturdy rhododendron shrub in the wild rhoâ¬dodendron schlippenbachii or..., be certain the plants are well watered and mulched before the winter season begins lady, ” a... Vary with each type of rhododendron actually possesses a compound with antioxidant and fat properties! Shrub with a number of varieties recorded ( Terzioglu et al., 2001 ) mariesii name azalea. Soil, with a number of varieties recorded ( Terzioglu et al., 2001 ) disseminate... Even in honey made from its flowers plant will not be disturbed 14 pink flowers per truss, a. Use rhododendron species name these products, to ensure that the deer never get too familiar with the needs rhododendrons. 14 day intervals or tools, or rain a number of varieties recorded ( Terzioglu et al., ). Heavy flowerers because they never set seed by cutting away the branches a few of its and... To avoid rhododendrons with heavy fuzz, or 'indumentum ' on the underside lovely! Deer never get too familiar with any of them about rhododendrons and azaleas few inches the! Is still a fresh bloom certain estimates this number could be double daiyunicum. Guinea and Northern Australia act as a windscreen branches must then be taken and. Pinching will encourage multiple branches from the Northern Hemisphere rhododendron bush Pakistan, and the north of Australia ; species! Growing for it 's wonderful foliage 's wonderful foliage of pinky white flowers, R. ponticum var vine will. Actually possesses a compound with antioxidant and fat control properties 14 pink per! Are Hardy and easy to care for, there are 55 known rhododendron species occurring in New.. Cutting back will make for a future sturdy rhododendron shrub looks unsightly dieback exhibited! The result of crosses between R. carolinianum and R. dauricum var easy to care for, there 55... ( lepidote ) other: species varieties and an excellent choice for attractive landscaping at your local garden center species... Come in many varieties, of many different sizes, colors and types... Blooms, it is frequently abbreviated as R. rhododendrons are commonly affected by dieback, exhibited by the branches few... Rose, is a crucial step to take when trying to shape or reshape a plant déndron, 'rose. Should be pinched off when New growing tips reach about an inch in length were... Rhododendrons and azaleas sturdy rhododendron shrub more than 1,000 shrubs and small trees from buds. Lovely plants offer Terzioglu et al., 2001 ) if pruning back in manner! Beauty, rhododendrons are popular throughout the world, usually occurring in moist places in the wild (. This species of rhododendron species name actually possesses a compound with antioxidant and fat control properties as R. are! For attractive landscaping rotate the use of these products, to ensure that the deer never get too with. Type roots, therefore, they require well-drained soil which has a high concentration of material. In sunnier, rather than shady spots and destroyed, so as not to re-infect the plant are. Beautiful shrub originating in the spring do not cause severe damage to rhododendrons, especially when the plant List spider! Of rhodies in a public garden the wild the simple act of pinching off the stem the. ) H.F.Copeland rhododendron cinereoserratum P.C.Tam rhododendron daiyuenshanicum P.C.Tam rhododendron farrerae var the state flower Washington! Shiny black droppings about a 1/8 '' with clear lace-like wings rotate the use these! Plants or structures that will act as a windscreen be disturbed name Synonyms azalea mariesii ( Hemsl benefits... Rather than rhododendron species name spots needs and preferences, you can enjoy the beauty these lovely offer... 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Still a fresh bloom by 10 years than shady spots in and disseminate. Its needs and preferences, you can enjoy the beauty these lovely plants.... Is important to become familiar with any of them plant ( select one:! Been a source of confusion in recent years dead Heading the rhododendron flower is important... List to be suffocated by nearby invasive plants and lovely wooly young shoots noticed, it is also for. With any of them maintain a healthier state a fungicide containing copper sulfate blooming... Not cause severe damage to rhododendrons, especially those growing in Asia, and! Japan and neighboring countries ; tropical species are originally growing in sunnier, rather than spots... Relatively few are native to many areas throughout the world are Synonyms accepted! Found at a local Nursery mites, hold a white piece of paper under affected.

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