Rhododendrons are the most popular of the evergreen shrubs available in the Pacific Northwest. Heavy clay soils are not suitable and lime or wood ash should not be added to the soil. 'u8': 'NA', 'u1': 'UBCBotanicalGarden', Glendoick never use R. ponticum as an understock and only use ‘Cunningham’s White’, other rootstocks which throw very few suckers. Mildest U.K. west-coast islands and south/western coastline. 'u7': 'NA', Medium rhododendrons will grow to 1/2m x 1/2 in 6-10 years so 1 1.5m spacing is good. Phone: 01738 860260 Email gardencentre@glendoick.com, The Cafe is OPEN from 9.30am (10am Sunday) to 4pm Last orders for hot food 3pm, Soup 3.30pm, Coffee & Cake 4pm, Phone: 01738 860265 Email cafemanager@glendoick.com, Glendoick Garden Centre, Glencarse, Perth, PH2 7NS. Still, with new rhododendron acquisitions (as well as with acquisitions of all other kinds of plants), the garden is mainly interested in wild seed collections of known provenance. Check the soil in the container with your finger and avoid plants that are … You’ll be lucky if your local garden centre stocks more than a handful of common varieties, and then, probably only in Spring, at flowering time. rude, R. crinigerum and the more familiar R. recurvoides). SAVE $150. 3 gal size 3-4 year old plant. How to Choose Rhododendrons. While their flowers are the flashiest attributes, the evergreen leaves of most rhododendron varieties make a great garden backdrop year-round. Regions suitable for growing rhododendrons and azaleas are those that have naturally acidic soils, adequate water availability, moderate humidity and winds and lack of temperature extremes. This group includes plants that are often moderately large leafed and large flowered, and that bloom over a long season. Low elevations fairly near west coast and on east coast. Amazing 125+ Year Old Rhododendron Tree in Ladysmith, British Columbia, Canada Tom BoredPanda staff When reddit user smartforever posted this magnificent picture of an old rhododendron (from Ancient Greek rhódon “rose” and déndron “tree”) on reddit, he probably made it the most famous rhododendron ever. How to Grow and Look after your Rhododendron. Nitobe Memorial Garden is also home to a number of Rhododendron taxa, although these plants have never been part of the garden’s collections database. 7724 was collected by Frank Kingdon Ward on his 1927-28 expedition to India, Tibet and Burma. We … Widely grown lavender-pink ‘P.J.M.’ rhododendron (R. [PJM Group] ‘P.J.M.’) (Photo by Stephen Westcott-Gratton) The colour spectrum of my garden widened dramatically this week as the first rhododendrons began to flower in various shades of white, pink, orange, red and magenta. diaprepes ‘Gargantua’ are now well over 12 m tall and they tower above other huge rhododendrons. Peter Wharton joined the staff of the garden in 1975 and was assigned to the continued development of the Asian Garden. $749.99. In continental Europe the minimum temperature ratings are more relevant. Where you prune the Rhododendron, it also runs out and flowers the following year. After flowering, you should cut Rhododendron short. K.C. SAVE $150. Low  80-1.3m in 10 years, will eventually reach 2m x 2m or more (20 years) Medium 1.3-2m in 10 years up to 3-4m+ in time. Wide range of rhododendron plants for delivery to anywhere in the UK through our secure online ordering system. 'u2': 'www.botanicalgarden.ubc.ca', The key is the annual growth rate, up to 60cm per year for the most vigorous and less than 1cm for the slowest growing. Peter A. Cox & Kenneth N.E. Rhododendron Care | Planting and Maintenance Tips. fargesii, with its abundant lax trusses of softly ruffled, pink flowers. With around 900 species and over 25,000 named hybrids, it can be hard work to decide what you want. The smell of these and the other cinnabarinums nearby is a heady mixture of camphor and clove oil and can occasionally induce a headache in some people if they stay too long in the vicinity. Grafted rhododendrons had a bad reputation,  largely due to the traditional use of R. ponticum as an understock, until the 1950s. Rhododendron Yakushimanum is the ideal plant for smaller gardens as it is a dwarf growing variety. Grandma's Hat. After flowering is the best time. At the western end of Lower Asian Way, garden visitors are met with a wall of 6 m high R. vernicosum plants. Glendoick Publishing. [1] (R. ‘Sunup-Sundown’ ´ R. ‘Lem’s Cameo’): Jack Lofthouse (1915-2005), Vancouver, BC. Like the Asian Garden, Nitobe was carved out of a natural second-growth stand, here composed primarily of tightly spaced Tsuga heterophylla (western hemlock) and Pseudotsuga menziesii (Douglas fir). window.dataLayer = window.dataLayer || []; One of the all time favourite plants that gardeners enjoy the world over is the Rhododendron. The Life and Times of a Plantsman in the Sikkim Himalayas: A Memoir. Choose an area for planting that receives ample amounts of both sunlight and shade — filtered sunlight is ideal. $45.00. WEB SALES OFFICE WILL BE CLOSED FROM 25TH OF DECEMBER UNTIL 4TH OF JANUARY. Glendoick Garden Centre offers around 250 different varieties. Many new species Rhododendrons have recently been introduced, mainly from the Himalayas, and we include some for the first time. Given the extraordinary colour and texture of the foliage, one hardly requires flowers, but the lax, Dijon mustard-coloured bells of this rhododendron are improbably attractive. Rhododendrons have no ultimate size, they can carry on growing indefinitely. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place. Many are well worth growing for their foliage alone! Both in terms of numbers of taxa and overall beauty, rhododendrons have always been the backbone of the Garden. The Rhododendron Handbook; Rhododendron Species in Cultivation. Various species of subsection Thomsonia are spread around the Asian Garden, among them the rare and beautiful R. stewartianum and R. cyanocarpum, and taking pride of place opposite the Moon Gate are three separate R. thomsonii accessions (from Nepal, Sikkim and Bhutan). The Garden’s rhododendron collection is extensive. For example, the Himalayan R. arboreum, its various subspecies, varieties and forms, and its close relatives (e.g., R. niveum, R. lanigerum) and the western Chinese R. argyrophyllum and its relatives (including R. floribundum, R. denudatum, R. rirei and R. thayerianum) are primarily located near the garden entrance. Notwithstanding a few exceptions, this reflects the prevailing attitude in botanical gardens about the value of hybrids relative to species and other naturally occurring taxa, and especially to collections of known wild provenance. The Asian Garden has a small number of both wild collections and cultivated selections, including a spectacular planting of the waxy, grey-green-blue-leafed R. cinnabarinum subsp. Name. A number of lepidotes are notable for their various odorous emissions, including the triflorums and many of the small-leaved species, but the cinnabarinums take the prize for the most aromatic of the larger lepidotes. A compact plant with bronzy-plum winter foliage. Rhododendron and azalea species are found growing in the wild from the arctic region to the tropics. Dig the hole twice as big as the pot, but no deeper than it. 'send_to': 'DC-8341466/tpr/tpartfb0+unique' Tall  2m+ in 10 years, ultimately 4-6m x 3-6m or more. Ideal soil pH for rhododendron plants is somewhere between 4.5 and 6.0. All but two hardy subsections of subgenus Hymenanthes are represented (subsection Venatora and subsection Griersoniana are missing) and there is a wide selection of lepidotes (subgenus Rhododendron) and azaleas (various subgenera), although these collections are less complete, reflecting both the dearth of sunny, well-drained areas available and the somewhat traditional focus on larger rhododendrons for woodland planting. We find with the vagaries of the British climate, there is considerable variation from year to year, especially with early-flowering varieties. Some areas of the Asian Garden were initially heavily planted with the smaller lepidotes (scaly leaved rhododendrons), such as R. impeditum, R. luteiflorum and the ground hugging R. campylogynum and their relatives, but the more exuberant growth of surrounding plants tended to crowd them out and reduce the number of areas in which these smaller plants could be grown. If I like a particular species of plant, I collect a lot of them! If you have had problems growing rhododendrons in the past, perform a soil test. The garden has a few plants that are rare in cultivation, such as R. fulgens, R. cyanocarpum, R. uvarifolium, R. ochraceum and R. yuefengense. Lavender Haze. H1 Tender (mild frosts only). Shade is the biggest ‘problem’ in many gardens, especially if you have mature shade trees like maple on your property. We use divisions of hardiness which have now been adopted by R.H.S. These shrubs are almost all so attractively shaped and the leaves dressed in such handsome shades and textures of indumentum that one hardly cares if the plants produce a bloom. Scattered about the garden are still more groupings, some related and others juxtaposed or separated for other reasons—shade, drainage, ultimate size, flower colour or leaf shape. Rhododendron cinnabarinum subsp. Rhododendron [Gk, "red tree"] is a large genus (700 species) of the heath family (Ericaceae) found in the Northern Hemisphere; 4 species are native to Canada. Rhododendrons are at the top of that list. Specimens in the subsection Taliensia are mostly located mid-garden along Upper Asian Way in an open, mostly unshaded area. In the Northeast, early spring or early fall planting is the best time to put a rhododendron into the ground. From the horticultural perspective, there are several locally significant plants in the garden (i.e., originating in the Pacific Northwest), such as the hybrids, R. ‘David Lam’[1] and R. ‘Olympic Lady’[2], and R. praevernum “Del James[3] selection.” Also prominently displayed are selections of species widely recognized as “superior,” such as R. augustinii ‘Barto Blue’, R. parmulatum ‘Ocelot’, R. argyrophyllum ‘Chinese Silver’ and a range of Japanese R. indicum and R. kiusianum cultivars. Rhododendron barbatum and its kin (subsection Barbata) are located in the cooler, more shaded parts of the Asian Garden, for example, where summer temperatures are significantly moderated by marine air that filters up ravines from the ocean below. Plant Sales Enquiries ... We have 25 varieties of Rhododendron to choose from including the award of garden merit Rhododendron Albert Schweitzer with its beautiful pale pink blooms and available in a lovely compact bushy shape and the vigorous Rhododendron Halfdan Lem. Quantity . Another standout is R. oreodoxa var. gtag('js', new Date()); Join the RHS today and get 12 months for the price of 9. The genus contains both rhododendrons, usually evergreen, and azaleas, which are deciduous. Conservation concerns are obvious when considering extinction and loss of wild habitat—and critically important when considering the fates of wild rhododendrons locally and in Asia—but less obvious are the conservation challenges regarding the loss of cultivars. Moisture Rhododendrons and Azaleas do not like to dry out; therefore, your soil must be consistently moist but never soggy. $35.00. Our audience includes researchers, educators and students, as well as a diverse, non-academic community whose constituents appreciate gardens for a multitude of other reasons, including the appreciation of great rhododendrons. Large leafed rhododendrons are well represented in the Asian Garden. Not reliably hardy outdoors at Glendoick but reliably hardy in Argyll, Cornwall, West Wales, Ireland and similar climates. Ultimately, the garden’s rhododendron collection is less about “stamp collecting” and more about growing the widest range of plants that both hold some justifiable significance and suit the conditions in the garden. At 2.5 m tall, these Himalayan beauties show manzanita-like peeling stems and rich scarlet flowers atop waxy rounded leaves. You can amend the soils with peat moss, compost, and other soil acidifiers to keep them happy. $65.00. H3 Fairly hardy: Low elevations and sheltered gardens, fairly near east coast. Semi-dwarf   to 40-80cm in 10 years, often spreading wider than high. We pride ourselves in one of the best ranges of Rhododendron species in the country, and we try to propagate these from collectors' seed, or recognised good forms. In total, the various areas of the Garden share approximately 450 Rhododendron taxa. }); UBC Faculty of Science, Office of the Dean Earth Sciences Building, 2178-2207 Main Mall, Greenheart TreeWalk (Closed until Spring), Nitobe Memorial Garden (Closed until Spring), http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=128386, http://rhodygarden.org/cms/rsf-foundation/history/. Cultivated in the Carolinian Forest Garden are wild-collected rhododendrons, including R. catawbiense, R. maximum, R. minus, and the deciduous R. canescens, R. arborescens, R. vaseyi, R. prinophyllum and R. calendulaceum. 'u5': 'Attractions', Keshab C. Pradhan. 7 gal 5-6 year old plants. Rhododendron and Azalea Hardiness. 'allow_custom_scripts': true, Post Code. Once established they are … Rhododendron Bi-color , Purple , White Rhododendron. New Search : Search Results: Nurseries located in Canada. September 19, 2016 September 21, 2016 Canada's Local Gardener Magazine 7759 Views Ontario Gardener The delicate mauve of a rhododendron flower cannot be imitated in any other flower. When you’ve seen one in full flower it’s not too hard to understand why. TCL 4-Series 55" 4K UHD HDR LED Android Smart TV (55S434-CA) - 2021 - Only at Best Buy … (932 Reviews) $399.99. xanthocodon. The range of Rhododendron taxa cultivated in the garden includes those derived from the more familiar and stalwart groups, such as subsections Fortunea, Saluenensia, Triflora and Pontica, as well as examples of many less well-known groups, i.e., subgenus Tsutsusi section Brachycalyx (the so-called three-leaf azaleas) and subgenus Hymenanthes section Pontica subsection Glischra (including the unusual R. glischrum subsp. Rhododendron Hybrids; A Guide to Their Origins. 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