{"title":"MADDENIAS AND OTHER \"MARGINALLY-HARDY\" RHODODENDRON SPECIES","description":"\u003ch3 style=\"text-align: center;\"\u003e\u003cstrong\u003eThis collection includes both smaller and larger-growing species, but excludes the big-leaves: many of these are epiphytic in the wild and so make great subjects for container culture.\u003c\/strong\u003e\u003c\/h3\u003e","products":[{"product_id":"rhododendron-chrysodoron","title":"Rhododendron chrysodoron  (ex. CCHH#8116)","description":"\u003cp\u003eUpright but compact-growing evergreen shrubs with beautiful smooth and peeling, deep red-brown bark. The rather stiff and thick foliage is quite attractive, glossy green on the upper surface with golden scales on the lower. The flowers (late winter indoors, early spring outdoors) are bright to deep yellow and bell-shaped with flaring lobes. It is a very distinct and, in my opinion, a rather stunning species. Native to W Yunnan, China and adjacent N Myanmar where it grows as an epiphyte or in other exceptionally well-drained areas such as on rocks and cliffs. These are grown from a hand-pollination using plants resulting from the only re-collection of this very rare species since it was originally collected by Kingdon Ward in the “Triangle” of N Myanmar in 1953.\u003c\/p\u003e","brand":"Rhododendron Species Botanical Garden","offers":[{"title":"Small Band","offer_id":42893555925059,"sku":null,"price":12.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/3865\/4275\/files\/31-R.-chrysodoron-CCHH8116-Feb-11-2009-061-1024x7681.jpg?v=1788900824"},{"product_id":"rhododendron-edgeworthii","title":"Rhododendron edgeworthii  JN#11081","description":"\u003cp\u003eOver-the-top ornamental evergreen shrubs with smooth and peeling bark. The distinctive foliage is extremely attractive with a heavily puckered (bullate) texture above and a thick tawny indumentum below. The large and fragrant white to white flushed pink flowers appear in mid-spring. Requires sharp drainage. Great in a container or on an old stump or log. The hairs on the leaves on plants from this end (eastern) of the range of the species have a golden hue. From seed collected in the wild in the Sino-Himalaya.\u003c\/p\u003e","brand":"Rhododendron Species Botanical Garden","offers":[{"title":"Small Band","offer_id":42893571326019,"sku":null,"price":12.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/3865\/4275\/files\/IMG_20260901_141752246.jpg?v=1788298129"},{"product_id":"rhododendron-excellens","title":"Rhododendron excellens  FMWJ#13398","description":"\u003cp\u003eA Maddenia closely related to \u003cem\u003enuttallii\u003c\/em\u003e but typically with narrower foliage that is more strongly glaucous-white beneath. Very large and fragrant white flowers with a strong yellow-orange blotch in mid-spring to early summer (depending upon the provenance). Smooth and peeling bark. One of the hardiest of the larger-flowered maddenias - has survived outdoors in the ground for many years at the RSBG. Requires excellent drainage. Grown from wild collected seed. This is the more “typical” form (if such a thing can be said about this enigmatic species) with very large leaves and blooming in early summer. \u003c\/p\u003e","brand":"Rhododendron Species Botanical Garden","offers":[{"title":"Small Band","offer_id":42893571686467,"sku":null,"price":12.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/3865\/4275\/files\/044-P1030182.jpg?v=1769445842"},{"product_id":"rhododendron-formosum-affinity","title":"Rhododendron formosum affinity  APA#008","description":"\u003cp\u003eProbably to be named as a new species. A beautiful shrub as seen in the wild, with fantastic smooth and peeling red-brown bark. Stiff and glossy foliage with long ciliate hairs along the margins. Large white flowers with fragrance. From wild seed collected in a newly explored region of the eastern Himalaya. Should make a fine container specimen in colder areas.\u003c\/p\u003e","brand":"Rhododendron Species Botanical Garden","offers":[{"title":"Small Band","offer_id":42893572669507,"sku":null,"price":9.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/3865\/4275\/files\/Rhody_logo-white-green-bkg.png?v=1766774645"},{"product_id":"rhododendron-johnstoneanum-double-diamond","title":"Rhododendron johnstoneanum 'Double Diamond'  1977\/693","description":"\u003cp\u003eThis is an amazing clone with pale creamy yellow (almost white) double flowers. The long-lasting flowers are like small roses with layer upon layer of petals. Blooms over a long period. Attractively hairy foliage with smooth and peeling bark. Very hardy for a Maddenia and stunning in flower.\u003c\/p\u003e","brand":"Rhododendron Species Botanical Garden","offers":[{"title":"Small Band","offer_id":42893586890819,"sku":null,"price":14.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/3865\/4275\/files\/R.-johnstoneanum-Double-Diamond.jpg?v=1767652750"},{"product_id":"rhododendron-moulmainense","title":"Rhododendron moulmainense  CGG#14123","description":"\u003cp\u003eAn extremely widespread and variable species that eventually forms a very large tree in its native habitats ranging from the Himalaya through China and into Malaysia and Indonesia. Some botanists have separated out several different species from throughout this huge range, whereas others have “lumped” them all into this single variable species. The trees also feature stunning smooth and peeling bark. The variable large and showy pink, lilac or white flowers are fragrant, appearing in early spring. This collection represents the “typical” form with large and pink to lavender flowers. Grown from seed collected in the wild. Very ornamental and rarely offered.\u003c\/p\u003e","brand":"Rhododendron Species Botanical Garden","offers":[{"title":"Small Band","offer_id":42894085619779,"sku":null,"price":12.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/3865\/4275\/files\/R.-moulmainense.jpg?v=1760125505"},{"product_id":"rhododendron-seinghkuense","title":"Rhododendron seinghkuense","description":"\u003cp\u003eThis epiphytic species is basically a smaller-growing version of its close relative – \u003cem\u003eR\u003c\/em\u003e. \u003cem\u003eedgeworthii.\u003c\/em\u003e It differs in its much smaller, rounded leaves, slightly thinner indumentum and smaller, but bright yellow, flowers. Fine in a hanging basket or on an old log or stump. A very attractive dwarf species. Requires excellent drainage. Another stunning species in terms of its outstanding foliage.\u003c\/p\u003e","brand":"Rhododendron Species Botanical Garden","offers":[{"title":"Small Band","offer_id":43755129077827,"sku":null,"price":19.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/3865\/4275\/files\/R.-seinghkuense.jpg?v=1769796940"},{"product_id":"rhododendron-xanthostephanum","title":"Rhododendron xanthostephanum  KR#11776","description":"\u003cp\u003eThis is a bushy, smaller-growing species with stunning, smooth, mahogany bark. The distinct narrow leaves are a lovely, silvery-scaly and olive-green in contrast to the small tubular bright yellow flowers which appear in masses in late spring. Grown from seed collected in the wild.\u003c\/p\u003e","brand":"Rhododendron Species Botanical Garden","offers":[{"title":"Small Band","offer_id":43614021648451,"sku":null,"price":9.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/3865\/4275\/files\/R.-xanthostephanum.jpg?v=1769896602"},{"product_id":"rhododendron-suoilenhense-copy","title":"Rhododendron boothii  GR#0868","description":"\u003cp\u003eAn amazing and very distinct species from the temperate rainforests of the Eastern Himalaya. This species has remarkable stiff and leathery, narrowly heart-shaped leaves to around three inches long - each leaf covered with long silky silvery hairs. The new growth emerges bright red-purple and is complemented by the small, bright yellow flowers. Very slow-growing and requiring excellent drainage. Not very hardy so best in a container in colder climates (Pacific NW for example!) but quite happy rootbound in a pot due to its epiphytic nature. A real beauty and very different from any other species. Long lost in cultivation but recently reintroduced from the wild.\u003c\/p\u003e","brand":"Rhododendron Species Botanical Garden","offers":[{"title":"Small Band","offer_id":42893552058435,"sku":null,"price":12.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/3865\/4275\/files\/013-P1040534.jpg?v=1768248071"},{"product_id":"rhododendron-boothii-copy","title":"Rhododendron concinnoides 2008\/079 APA#085","description":"\u003cp\u003eA newly introduced dwarf species with small bell-shaped rose-purple flowers in the autumn, very distinctive small and very dark gray-green elliptic leaves and a very dwarf and compact, but “tree-like” habit. Native to the eastern Himalaya, this is basically the western “purple” flowered form of the yellow-flowered \u003cem\u003emonanthum\u003c\/em\u003e from the Yunnan\/Myanmar frontier although they are easily distinguished visually. An epiphyte in the wild, this requires excellent drainage, great in a moss-lined hanging basket. This is a very rare taxon in cultivation which has been introduced from the wild only this one time (2005). \u003c\/p\u003e","brand":"Rhododendron Species Botanical Garden","offers":[{"title":"Small Band","offer_id":42893569359939,"sku":null,"price":23.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/3865\/4275\/files\/025-P1020851.jpg?v=1767815556"},{"product_id":"rhododendron-maddenii-copy","title":"Rhododendron maddenii  KR#11762","description":"\u003cp\u003eFragrant large trumpet-shaped white flowers in late spring to early summer and shiny foliage with a robust growth habit. Among the hardiest of the members of subsection Maddenia and much easier to grown than most of its close relatives. These are grown from seed collected wild in a newly explored region in the Eastern Himalaya.\u003c\/p\u003e","brand":"Rhododendron Species Botanical Garden","offers":[{"title":"Small Band","offer_id":42894075920451,"sku":null,"price":9.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/3865\/4275\/files\/45-P1070889.jpg?v=1769025308"},{"product_id":"rhododendron-maddenii-copy-1","title":"Rhododendron pendulum  1999\/527  BB#8831","description":"\u003cp\u003eExquisite, dwarf shrubs related to \u003cem\u003eedgeworthii.\u003c\/em\u003e These have very attractive, densely furry leaves around one to two inches in length. The small white flattened flowers are not particularly showy, but this is an outstanding foliage plant. Very slow growing and requires excellent drainage in a raised bed or old stump. Also does well in a hanging basket. One of the most distinct species in terms of its stunning foliage. This was collected at 13,000 ft. in the eastern Himalaya. Quite high in elevation for this species. \u003c\/p\u003e","brand":"Rhododendron Species Botanical Garden","offers":[{"title":"Small Band","offer_id":42897999265859,"sku":null,"price":17.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/3865\/4275\/files\/098-PSA0001.jpg?v=1768254070"},{"product_id":"rhododendron-maddenii-apa-078-398sd2005","title":"Rhododendron maddenii  APA#078","description":"\u003cp\u003eFragrant large trumpet-shaped white to pinkish flowers in late spring to early summer and shiny foliage with a robust growth habit. Among the hardiest of the members of subsection Maddenia and much easier to grown than most of its close relatives. These are grown from seed collected wild in a newly explored region in the Eastern Himalaya.\u003c\/p\u003e","brand":"Rhododendron Species Botanical Garden","offers":[{"title":"Small Band","offer_id":42894075756611,"sku":null,"price":7.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/3865\/4275\/files\/45-P1070889.jpg?v=1769025308"},{"product_id":"rhododendron-edgeworthii-kr-11779","title":"Rhododendron edgeworthii  KR#11779","description":"\u003cp\u003eOver-the-top ornamental evergreen shrubs with smooth and peeling bark. The distinctive foliage is extremely attractive with a heavily puckered (bullate) texture above and a thick tawny indumentum below. The large and fragrant white to white flushed pink flowers appear in mid-spring. Requires sharp drainage. Great in a container or on an old stump or log. The hairs on the leaves on plants from this end (western) of the range of the species have a silvery hue. From seed collected in the wild in the Sino-Himalaya. Large plants this year.\u003c\/p\u003e","brand":"Rhododendron Species Botanical Garden","offers":[{"title":"Small Band","offer_id":43502448508995,"sku":null,"price":12.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/3865\/4275\/files\/IMG_20260901_142145926.jpg?v=1788298316"},{"product_id":"rhododendron-edgeworthii-apa-034","title":"Rhododendron edgeworthii  APA#034","description":"\u003cp\u003eOver-the-top ornamental evergreen shrubs with smooth and peeling bark. The distinctive foliage is extremely attractive with a heavily puckered (bullate) texture above and a thick tawny indumentum below. The large and fragrant white to white flushed pink flowers appear in mid-spring. Requires sharp drainage. Great in a container or on an old stump or log. From seed collected in the wild in the Sino-Himalaya.\u003c\/p\u003e","brand":"Rhododendron Species Botanical Garden","offers":[{"title":"Small Band","offer_id":43613991960643,"sku":null,"price":12.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/3865\/4275\/files\/IMG_20260901_141830559.jpg?v=1788298170"},{"product_id":"rhododendron-edgeworthii-nv-076","title":"Rhododendron edgeworthii  NV#076","description":"\u003cp\u003ePlants grown from this collection are what I am assuming (hoping) will be the hardiest form of this generally tender species. These are grown from a collection made at a very high elevation on the tallest mountain in N Vietnam where it grew with several other reliably hardy (in the Pac NW anyway) species. This forms an open-growing evergreen shrub with smooth and shiny peeling bark. The distinctive glossy leaves are extremely attractive with a heavily puckered (bullate) texture above and a thick tawny-orange indumentum below. The large and fragrant, typically white flushed deep rose flowers appear in mid-spring. Requires sharp drainage and great in a container. The foliage on this form is stunningly beautiful. Excellent on an old stump or log.  \u003c\/p\u003e","brand":"Rhododendron Species Botanical Garden","offers":[{"title":"Small Band","offer_id":43613992386627,"sku":null,"price":17.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/3865\/4275\/files\/IMG_20260831_153050246_HDR.jpg?v=1788216155"},{"product_id":"rhododendron-excellens-djhv-8082","title":"Rhododendron excellens  DJHV#8082","description":"\u003cp\u003eA Maddenia closely related to \u003cem\u003enuttallii\u003c\/em\u003e but typically with narrower foliage that is more strongly glaucous-white beneath. Very large and fragrant white flowers with a strong yellow-orange blotch in mid-spring to early summer (depending upon the provenance). Smooth and peeling bark. One of the hardiest of the larger-flowered maddenias - has survived outdoors in the ground for many years at the RSBG. Requires excellent drainage. Grown from wild collected seed. This is the more “typical” form (if such a thing can be said about this enigmatic species) with very large leaves and blooming in early summer. \u003c\/p\u003e","brand":"Rhododendron Species Botanical Garden","offers":[{"title":"Small Band","offer_id":43613996253251,"sku":null,"price":12.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/3865\/4275\/files\/044-P1030182.jpg?v=1769445842"},{"product_id":"rhododendron-lindleyi-1999-104","title":"Rhododendron lindleyi  1999\/104","description":"\u003cp\u003eThis species features large trumpet-like and very fragrant white flowers in mid-spring and smooth peeling bark. Requires excellent drainage. A very beautiful flower, quite happy in a container. An excellent form with very large flowers which we received from the late Jim Gerdemann.\u003c\/p\u003e","brand":"Rhododendron Species Botanical Garden","offers":[{"title":"1 Gallon","offer_id":43614004904003,"sku":null,"price":24.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/3865\/4275\/files\/IMG_20250416_153306157.jpg?v=1785438319"},{"product_id":"rhododendron-lindleyi-rsbg","title":"Rhododendron lindleyi  RSBG","description":"\u003cp\u003eThese are seedlings from a selfing of the excellent selection 'Geordie Sherriff' which features large trumpet-like and very fragrant white flowers in mid-spring that are strongly flushed with rose. Fantastic flowers and smooth peeling bark on what we consider to be the best form of this always beautiful species. Requires excellent drainage. A very beautiful flower, quite happy in a container.\u003c\/p\u003e","brand":"Rhododendron Species Botanical Garden","offers":[{"title":"1 Gallon","offer_id":43614006509635,"sku":null,"price":19.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/3865\/4275\/files\/IMG_20260510_092232179.jpg?v=1785438255"},{"product_id":"rhododendron-lindleyi-gr-0822","title":"Rhododendron lindleyi  GR#0822","description":"\u003cp\u003eThis species features large trumpet-like and very fragrant white flowers in mid-spring and smooth peeling bark. Requires excellent drainage. A very beautiful flower, quite happy in a container. These are grown from seed collected in the wild in the eastern Himalaya.\u003c\/p\u003e","brand":"Rhododendron Species Botanical Garden","offers":[{"title":"Small Band","offer_id":43614006575171,"sku":null,"price":11.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/3865\/4275\/files\/IMG_1173.jpg?v=1785438216"},{"product_id":"rhododendron-walongense-2005-253","title":"Rhododendron walongense  2005\/253  HECC#10006","description":"\u003cp\u003eAn extremely rare maddenia in cultivation, this species has superb, dark mahogany, smooth and peeling bark with shiny deep green foliage and highly fragrant white flowers. The real thing - most plants grown under this name are maddenia hybrids. Rarely offered.\u003c\/p\u003e","brand":"Rhododendron Species Botanical Garden","offers":[{"title":"1 Gallon","offer_id":43614018699331,"sku":null,"price":28.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/3865\/4275\/files\/walongense.jpg?v=1785437920"},{"product_id":"rhododendron-xanthostephanum-kr-10077","title":"Rhododendron xanthostephanum  KR#10077","description":"\u003cp\u003eThis is a bushy, smaller-growing species with stunning, smooth, mahogany bark. The distinct narrow leaves are a lovely, silvery-scaly and olive-green in contrast to the small tubular bright yellow flowers which appear in masses in late spring. Grown from seed collected in the wild.\u003c\/p\u003e","brand":"Rhododendron Species Botanical Garden","offers":[{"title":"1 gallon","offer_id":43614018961475,"sku":null,"price":19.0,"currency_code":"USD","in_stock":true},{"title":"Small Band","offer_id":43614019387459,"sku":null,"price":9.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/3865\/4275\/files\/R.-xanthostephanum.jpg?v=1769896602"},{"product_id":"rhododendron-xanthostephanum-tephropeplum-kr-11764","title":"Rhododendron xanthostephanum  KR#11764","description":"\u003cp\u003eThis is a bushy, smaller-growing species with stunning, smooth, mahogany bark. The distinct narrow leaves are a lovely, silvery-scaly and olive-green in contrast to the small tubular bright yellow flowers which appear in masses in late spring. Grown from seed collected in the wild, these are nice large plants.\u003c\/p\u003e","brand":"Rhododendron Species Botanical Garden","offers":[{"title":"1 Gallon","offer_id":43614021910595,"sku":null,"price":19.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/3865\/4275\/files\/R.-xanthostephanum.jpg?v=1769896602"},{"product_id":"rhododendron-baihuanense-jn-11050","title":"Rhododendron baihuaense  JN#11050","description":"\u003cp\u003eA newly discovered (2011) and described species (way to go Jens Nielsen!) from the Yunnan\/Myanmar frontier, this may be most closely related to \u003cem\u003eR. hanceanum\u003c\/em\u003e which is known from far to the north in Sichuan. This does not appear to be a large-growing shrub having been recorded as reaching only one to two meters in the wild. The remarkable foliage is quite unlike any other species that I have seen. It emerges reddish-purple with the appearance of being coated with a dull wax. The deep green and shiny leaves are bright glaucous-white beneath. The small, white, funnel-shaped flowers (early spring) are strongly marked with red spots and splashes - quite striking!  \u003c\/p\u003e","brand":"Rhododendron Species Botanical Garden","offers":[{"title":"Small Band","offer_id":43637347418179,"sku":null,"price":19.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/3865\/4275\/files\/IMG_20260416_112219353_HDR.jpg?v=1786041520"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/3865\/4275\/collections\/R.-edgeworthii_da20db27-df37-4ae9-aff7-cfd0e4134553.jpg?v=1788993433","url":"https:\/\/shop.rhodygarden.org\/collections\/maddenias-and-other-marginally-hard-species.oembed?page=3","provider":"Rhododendron Species Botanical Garden","version":"1.0","type":"link"}