foliage! M; hH; Pn!! hardy; M; hH - H R. viscosum � pink-white; fragrant! R. pronum - cream; rare! red; decideous; L; hH - H, R. prinophyllum - pink(red)+ blotch; M; hH - H indumentum! R. pachytrichum � pink-white; indumentum! new leaves! R. elegantulum � pink-white; indumentum; very early; E; hH R. impeditum � and derived varieties; blue\lilac; E-M; C The first sign of this disease is often a wilt, with the roots appearing blackened or soggy. R. flammeum - USA; orange-red; E; hH - H R. maximum � pink(white); cold hardy! hardy; M; hH - H R. keleticum - purple=red; lepidote; very compact; M; C, R. canadense � N-Am; [urple-blue; decideous; V; C; moist! R. hemsleyanum - white;large plant; M - L; H R. yunnanense �light  pink with M-L; hH - H lepidote; M; hH - H R. rubiginosum - lavender-pink; lepidote; M; hH blue\green leaves; M; C Rhododendron is the largest genus in the family Ericaceae, with as many as 1,024 species, (though estimates vary from 850 to 1000 ) and is morphologically diverse. R. campanulatum - large R. hanceanum - cream yellow; lepidote+low; M; C � yellow; lepidote; (most)low compact; E; C large plant! � white-pink with dark blotch; early! R. ferrugineum - pink(to white); lepidote; European Alps; M - L; C large leaves; E; H Chinoides. E-M; H; Pn! R. pseudochrysanthum foliage! R. haematodes � bright red; indumentum; M; hH R. insigne � pink-white; silver underside leaves! R. rex � white+dark blotch; large plant; R. schlippenbachii - pink-white; decideous; M; hH decideous; M; hH - H R. davidsonianum - lilac(white); pink blotch; M; hH, R. smirnovii � pink-lilac; indumentum! ((dark)-pink; M; hH R. flavorufum - white-pink; indumentum! R. wiltonii - pink-white; red dots; M; H; Pn!! protection!! R. keiskei R. niveum - apart lilac-purple! R. hirsutum - from red to white; lepidote and heary; M-L; C The ‘PJM’ Rhododendron is a compact variety that is also quite easy to grow and does better in full sun that most Rhododendrons. cinnabarinum f blandfordiiflorum, Rh. foliage; M; hH E; hH - H M; H; Pn!! As treated in Dr. Cullen’s 1980 revision of the subsection, R. maddenii is an extremely variable species into which all eight members of the former Subseries Maddenii (under the old Balfourian system of classification), except R. excellens, have been lumped. other ; M; hH pink-white; fragrant! large leaves; E; H E; hH - H R. brachycarpum - creame-whitet; coldhardy! R. eclecteum - from yellow to pink; E - M; hH pink blotch; M; hH, R. rex � white+dark blotch; large plant; protection!! R. prunifolium �  USA; Infected branches should be pruned well below the discolored wood, then disposed of. Rhododendron. late! R. yakushimanum � pink-white; indumentum; R. prinophyllum - pink(red)+ blotch; Hydrangea macrophylla 'White King' (also known by its trade name of SNOW STORM)is an upright, compact, mophead cultivar that grows on strong stems to 3-4? Disinfect pruning tools between cuts with a 10% bleach or 70% rubbing alcohol solution, and apply a fungicide that contains copper. R. fulvum - (dark)pink; indumentum; E - M; hH - H R. catawbiense - USA; lilac-purple-pink; L; hH - H edgeworthii x Rh. R. hanceanum - cream yellow; lepidote+low; M; C decideous; USA; L; hH - H M; hH R. floribundum - lavender-purple; indumentum! lepidote; M-L; hH - H R. coriaceum - white+red blotch! fragrant; decideous; M; hH - H Rhododendron Name "A - Z" Lists Rhododendron Plant Search M; H; Pn!! R. genesterianum - Apart! pink-white; fragrant! blue\green leaves; M; C R. gymnocarpum - darkred; indumentum; M; C - hH M; C R. micranthum �white in small trusses; lepidote; hardy! pink blotch; M; hH, R. williamsianum � pink; small round leaves; nice plant; M; C - hH M-L; hH eximium - (light)pink; indumentum; M; H; Pn!! � white-pink with dark blotch; early! fine! R. ferrugineum - pink(to white); lepidote; European Alps; M - L; C R. occidentale � cream-pink-white; fragrant bdecideous, L; hH R. schlippenbachii - pink-white; decideous; M; hH R. roxieanum - white(pink); foliage! Devoted horticultural pioneers of the 19th century risked life and limb in the remote mountainous regions of China to seek out desirable species. The flowers are predominantly white in large trusses with large frilly edges and flashes of rose pink which can vary. Greer) R. irroratum (var. R. auriculatum � white; fragrant; from July - September; L; H blue\green leaves; M; C R. maximum � pink(white); cold hardy! decideous; M; hH - H pink blotch; M; hH, R. recurvoides � rpink-white+red dots; indumentum! � yellow; lepidote; (most)low compact; E; C R. R. dauricum - pink-purple; lepidote; very early! foliage! apart leaves; E; hH  pink blotch; M; hH. orange\red\lilac\pink; E-L; hH - H E; hH blackpurple! SD. foliage! M; hH foliage! L; H large plant! M; hH - H R. xanthocodon - light yellow; lepidote; bluish leaves; M; hH cumberlandense (Gregory Bald), Rh. Nice!! R. impeditum � and derived varieties; blue\lilac; E-M; C R. maximum � pink(white); cold hardy! R. fargesii � pink(stripes); early; What makes them unique is that they are more compact than other varieties. In early spring, the rhododendron buds swell. R. wardii � yellow; parent of many hybrids! R. wightii - cream-yellow; looks like R. lacteum; M; hH - H Some rhododendrons are low-growing, while others may be as tall as ornamental trees after 10 years. R. yakushimanum � pink-white; indumentum; R. brachycarpum - creame-whitet; coldhardy! R. gymnocarpum - darkred; indumentum; M; C - hH Rhododendron White Angel . M; hH - H, R. callimorphum - lepidote; M; hH - H Back then, they were known to classical writers only and were referred to as Chamaerhododendron which meant low-growing rose tree.Rhododendrons were first introduced in Britain in 1656. foliage! 16 Species Each distinct type of wild rhododendron is called a species (a word which is the same in both singular and plural; to use the word "specie" for the singular is quite incorrect). R. campylocarpum - cream yellow; M; hH - H R. decorum � pink-white; late! The foliage of many species is extremely unusual and attractive, providing year-round interest. foliage! indumentum; M; hH M; H; Pn!! R. flammeum - USA; orange-red; R. pronum - cream; rare! pink blotch; M; hH, R. viscosum � pink-white; fragrant! yellow!! decideous; USA; L; hH - H R. praestans - pink-white with red R. periclymenoides - USA; foliage; M; hH Rhododendron foliage is extremely variable. Consequently, the taxonomy has been historically complex. R. yunnanense �light  pink with lepidote;  E- M; C - hH new leaves! R. carolinianum �  USA; pink-white; foliage; M; hH foliage! L; H R. wiltonii - pink-white; red dots; R. insigne � pink-white; silver underside leaves! M; H; Pn!! Compact, dense form is wider than tall, with excellent even growth habit. R. ferrugineum - pink(to white); lepidote; European Alps; M - L; C Rhododendron 'Cecile' grows vigorously to become a dense, 7-foot-tall and 7-foot-wide shrub with trusses... 'Fielder's White' azalea. R. niveum - apart lilac-purple! R. mucronulatum - lilac; decideous; very early! R. periclymenoides - USA; R. decorum - white-pink; fragrant; large; late! R. keleticum - purple=red; lepidote; very compact; M; C, R. haematodes � bright red; indumentum; M; hH M; C R. williamsianum � pink; small round leaves; nice plant; M; C - hH R. coriaceum - white+red blotch! lepidote; M-L; hH - H 24 FPS. 13. M; H; Pn!! decideous; M; hH Species of Septoria, Colletotrichum, Phyllosticta, and Cercospora are responsible for this primarily cosmetic disease. indumentum! R. williamsianum � pink; small round leaves; nice plant; M; C - hH R. hirsutum - from red to white; lepidote and heary; M-L; C Polka Dot) - white-cream-pink+dark dots! Most species bear "trusses" of up to 24 spectacular blooms, in colours ranging from white to pink, red, yellow, and mauve. M; C R. traillianum - pink-white; indumentum! foliage R. gymnocarpum - darkred; indumentum; M; C - hH R. williamsianum � pink; small round leaves; nice plant; M; C - hH fragrant; decideous; M; hH - H L; H fine! M; hH R. fulvum - (dark)pink; indumentum; E - M; hH - H R. flavorufum - white-pink; indumentum! Nice!! Most people know rhododendrons as big leathery leafed shrubs with round clusters of white, pink, red, or purple blooms. Fungicides cannot cure this disease, so it is important to prevent it with proper planting. R. rex � white+dark blotch; large plant; R. camtschaticum - lilac-pink; decideous; very compact! R. wiltonii - pink-white; red dots; R. irroratum (var. R. hemsleyanum - white;large plant; M - L; H M; hH - H Apply another light dose of this fertilizer when the leaves emerge. R. pulloninii - apart! � yellow; lepidote; (most)low compact; E; C R. praestans - pink-white with red R. decorum � pink-white; late! M; H; Pn!! R. globigerum - pink-white; indumentum! L; H pink-white; fragrant! R. gymnocarpum - darkred; indumentum; M; C - hH R. praestans - pink-white with red Leaf gall is a common springtime Rhododendron disease, but it is not particularly serious. R. flavorufum - white-pink; indumentum! decideous; M; hH - H R. pseudochrysanthum R. caucasicum - cream-yellow-white; E - M; hH large R. yunnanense �light  pink with M; hH; Pn!! They were first discovered by a Flemish botanist, Charles l’Ecluse. largeshrub\tree; E; H; Pn!! M; hH - H blotch; indumentum; fine! Their flowers are very showy, with large pink buds and white flowers. R. fragrant; decideous; foliage; M; hH You can obtain most of them easily from specialist shrub and alpine nurseries. R. calophytum R. insigne � pink-white; silver underside leaves! small 'balls'; lepidote; M; C-hH R. impeditum � and derived varieties; blue\lilac; E-M; C M; C R. traillianum - pink-white; indumentum! E; hH - H R. irroratum (var. R. makinoi � pink-white; indumentum; From purest white, ranging through palest yellows and pinks, stronger yellows and orange, dark pink and red, to true (and not so true) blues. You can choose between various types of fertilizer for your plants. L; H R. keiskei � yellow; lepidote; (most)low compact; E; C USA; L; hH - H blotch; large! R. niveum - apart lilac-purple! late! R. trichostomum - white-pink; in R. smirnovii � pink-lilac; indumentum! M; H; Pn!! Rhododendrons that first started to grow in the 16th century can still be found today. indumentum! R. wightii - cream-yellow; looks like R. lacteum; M; hH - H M; hH R. hemsleyanum - white;large plant; M - L; H M; H; Pn!! M; hH R. wiltonii - pink-white; red dots; R. xanthocodon - light yellow; lepidote; bluish leaves; M; hH These low maintenance plants have transformed thousands of gardens for New … R. orbiculare � pink; almost round leaves; E - M; hH R. trichostomum - white-pink; in M; H; Pn!! R. williamsianum � pink; small round leaves; nice plant; M; C - hH Dieback is a difficult Rhododendron disease to control. R. preptum - white with red blotch! indumentum; M; hH R. rubiginosum - lavender-pink; lepidote; M; hH R. schlippenbachii - pink-white; decideous; M; hH R. smirnovii – pink-lilac; indumentum! R. wightii - cream-yellow; looks like R. lacteum; M; hH - H Rhododendrons produce large and beautiful flowers with a wide variety of colors. fragrant; decideous; M; hH - H R. roxieanum - white(pink); foliage! R. bureavii � pink-white; indumentum! eximium - (light)pink; indumentum; M; H; Pn!! fragrant; decideous; blue\green leaves; M; C late! R. fastiagatum - lavender\blue; lepidote; M; C R. mucronulatum - lilac; decideous; very early! pink-white; fragrant! large plant! � yellow; lepidote; (most)low compact; E; C plants affected by it have leaves, buds, or stems that develop swollen, distorted growths in April or May. R. R. elegantulum � pink-white; indumentum; very early; E; hH R. wallichii - (pink)-white; nice R. yakushimanum � pink-white; indumentum; E-M; H; Pn! Vertical. R. gymnocarpum - darkred; indumentum; M; C - hH It is also important that the soil drains well. R. haematodes � bright red; indumentum; M; hH E - M; hH - H R. canescens - USA; pink-white; M; hH R. roxieanum - white(pink); foliage! balfourianum var. R. taliense � cream-yellow-white; indumentum!! R. rubiginosum - lavender-pink; lepidote; M; hH M; hH R. wardii � yellow; parent of many hybrids! R. floribundum - lavender-purple; indumentum! M; C;  R. niveum - apart lilac-purple! R. globigerum - pink-white; indumentum! R. viscosum � pink-white; fragrant! R. williamsianum � pink; small round leaves; nice plant; M; C - hH R. williamsianum � pink; small round leaves; nice plant; M; C - hH With near 1,000 species available, Rhododendrons offer a wide variety of choices, with something to suit almost any climate. R. hirsutum - from red to white; lepidote and heary; M-L; C Learn about growing rhododendrons and see unique wild species rhododendrons growing at the Rhododendron Species Botanical Garden in Federal Way, Washington. Rhododendron 'Fielder's White' is blanketed with single white blossoms in mid-spring. E - M; C R. wightii - cream-yellow; looks like R. lacteum; M; hH - H plant(tree); M; H foliage R. traillianum - pink-white; indumentum! R. traillianum - pink-white; indumentum! R. periclymenoides - USA; M; hH cumberlandense (bakeri) orange (GregoryBald), Rh. R. floribundum - lavender-purple; indumentum! Sometimes infected leaves become covered with white spots. � yellow; lepidote; (most)low compact; E; C narrow leaves; M; C;  R. prinophyllum - pink(red)+ blotch; R. wallichii - (pink)-white; nice R. wardii � yellow; parent of many hybrids! pink blotch; M; hH, R. yunnanense �light  pink with R. prinophyllum - pink(red)+ blotch; R. globigerum - pink-white; indumentum! R. fortunei � soft pink; One should remove leaves that have fallen, and take care when watering to keep the leaves dry. R. fulvum - (dark)pink; indumentum; E - M; hH - H R. haematodes � bright red; indumentum; M; hH dichroanthum �yellow-orange; calyx; M-L; C - hH (photo Harold plant(tree); M; H R. davidsonianum - lilac(white); Leaf spot is caused by a group of Rhododendron diseases that consists of various fungi. R. smirnovii � pink-lilac; indumentum! R. trichostomum - white-pink; in M; hH pink blotch; M; hH, R. yakushimanum � pink-white; indumentum; red; decideous; L; hH - H R. wightii - cream-yellow; looks like R. lacteum; M; hH - H R. hanceanum - cream yellow; lepidote+low; M; C new leaves! foliage! Measure the height of your rhododendron shrub. Rhodendrons grafted on the rootstock ‘Cunningham’s White’ appear to tolerate pH levels in excess of 6.0. large R. genesterianum - Apart! R. praestans - pink-white with red The 7 species are: R. alabamense, R. arborescens, R. atlanticum, R. viscosum, R. eastmanii, R. colemanii and R. occidentale. E - M; C large leaves; E; H R. macrophyllum; USA; lavender-pink-white; M; hH - H R. viscosum � pink-white; fragrant! R. luteum - yellow; fragrant! E; hH calendulaceum in Yellow Mountains a, Rh. E - M; hH - H E - M; C eximium - (light)pink; indumentum; M; H; Pn!! USA; L; hH - H It is caused by various species of the Oomycete Phytophthora, also known as a water mold. Rhododendron-species, R. atlanticum � white;USA; fragrant; White Angel rhododendrons are low-maintenance evergreen shrubs that grow to 6 feet tall. decideous;  R. R. wallichii - (pink)-white; nice R. canescens - USA; pink-white; Rhododendrons should be planted in a soil with a lot of organic matter and not be planted too deeply, so their crown is not covered. dichroanthum �yellow-orange; calyx; M-L; C - hH (photo Harold R. carolinianum �  USA; pink-white; plant(tree); M; H R. baileyi - apart!! R. fargesii � pink(stripes); early; R. indicum - azalea; (pink)red; varieties; L; C Rhododendron tsusiophyllum has small, white flowers that grows as a creeping or low mounding shrub. HD. M; H; Pn!! Some also have young leaves and stems covered in a striking woolly coating (indumentum) and some - the deciduous rhododendrons or azaleas - have good autumn colour. R. canadense � N-Am; [urple-blue; decideous; V; C; moist! ; M; hH rhododendron … pink-white; fragrant! foliage! 23.98 FPS. R. keiskei Large! R. hirsutum - from red to white; lepidote and heary; M-L; C R. viscosum � pink-white; fragrant! R. praestans - pink-white with red plant(tree); M; H planecostatum (vireya rhododendron), Rh. ... that is densely hairy or “indumented” on the leaf undersides and perfect apple-blossom … R. trichostomum - white-pink; in R. preptum - white with red blotch! M; hH - H Nice!! E; hH - H M; C;  fragrant; decideous; foliage; M; hH protection!! RF and RR. R. williamsianum � pink; small round leaves; nice plant; M; C - hH R. pachytrichum � pink-white; indumentum! Assortment of R. indicum - azalea; (pink)red; varieties; L; C largeshrub\tree; E; H; Pn!! Polka Dot) - white-cream-pink+dark dots! decideous; M; hH R. wiltonii - pink-white; red dots; M; H; Pn!! E - M; hH - H M; hH - H R. globigerum - pink-white; indumentum! E - M; C R. genesterianum - Apart! oreonastes new foliage, Rh. small 'balls'; lepidote; M; C-hH � pink-white; red dots; E; hH. R. carolinianum �  USA; pink-white; … I recall them growing out of the shale … E - M; hH - H E - M; hH - H R. hanceanum - cream yellow; lepidote+low; M; C photo page thousands of photos               M-L; hH M; hH Horizontal. R. micranthum �white in small trusses; lepidote; hardy! fragrant; decideous; M-L; hH - H Control mainly consists of picking off the galls and disposing of them. This fungus lives in the soil, so one should replace the ground cover with a mulch that has not been contaminated with petal blight. red; decideous; L; hH - H, R. makinoi � pink-white; indumentum; R. campylogynum - from cream to purple-red; compact!! L; H R. occidentale � cream-pink-white; fragrant bdecideous, L; hH cumberlandense (bakeri) on Gregory Bald, Rh. There are 7 varieties of azaleas in the ‘White Group’ that grow well in Europe and North America. One of the hardiest rhododendrons for zone 4 is PJM (stands for P. J. Mezitt, the hybridizer). Polka Dot) - white-cream-pink+dark dots! Adding white flowers to your home is the perfect way to keep the space light. M; C;  R. prinophyllum - pink(red)+ blotch; R. xanthocodon - light yellow; lepidote; bluish leaves; M; hH R. auriculatum � white; fragrant; from July - September; L; H new leaves! fragrant; M; H R. dauricum - pink-purple; lepidote; very early! ORIENTATION. R. wiltonii - pink-white; red dots; R. flavorufum - white-pink; indumentum! R. impeditum � and derived varieties; blue\lilac; E-M; C R. luteum - yellow; fragrant! M-L; hH large; E; H fragrant; decideous; R. fortunei � soft pink; M; hH red; decideous; L; hH - H, R. micranthum �white in small trusses; lepidote; hardy! R. ferrugineum - pink(to white); lepidote; European Alps; M - L; C ; M; hH Rhododendron was discovered by The 16th century Flemish botanist, Charles … calendulaceum in Yellow Mountains b, Rh. R. coriaceum - white+red blotch! fine! R. flammeum - USA; orange-red; How to Fertilize Rhododendron Bushes. R. periclymenoides - USA; pink-white in small trusses; R. wightii - cream-yellow; looks like R. lacteum; M; hH - H R. taliense � cream-yellow-white; indumentum!! R. austrinum - USA; fine golden White / Cream; Alphabetical Name. R. fulvum - (dark)pink; indumentum; E - M; hH - H R. eclecteum - from yellow to pink; E - M; hH * Best Compact Rhododendron – ‘PJM’ Rhododendron PJM Rhododendron. decideous; USA; L; hH - H R. smirnovii � pink-lilac; indumentum! lepidote; M-L; hH - H And they come in a whole range of colors like this one with red-edged white flowers. fragrant; M; H small 'balls'; lepidote; M; C-hH The Different Types of Rhododendrons And Their Names New Zealand Rhododendron Association, Inc., Bulletin No. R. recurvoides � rpink-white+red dots; indumentum! One of the most fragrant shrubs in existence and, despite its name, it is not a species although many assume that it is. R. wiltonii - pink-white; red dots; fragrant; decideous; R. pachysanthum - white with dots; indumentum! There are a number of different Rhododendron diseases, with the most serious being root rot and dieback of the branches. R. fastiagatum - lavender\blue; lepidote; M; C These are poisonous plants, so do not allow children to eat any plant parts on your azaleas or rhododendrons. R. mucronulatum - lilac; decideous; very early! RF and RM. R. flavorufum - white-pink; indumentum! foliage! R. pachytrichum � pink-white; indumentum! R. decorum - white-pink; fragrant; large; late! fragrant; M; H R. schlippenbachii - pink-white; decideous; M; hH R. indicum - azalea; (pink)red; varieties; L; C M; C;  blotch; large! ; M; hH Nice!! R. yunnanense �light  pink with R. yakushimanum � pink-white; indumentum; It is a hybrid resulting from R. carolinianum and R. dauricum.This shrub is reliably hardy to zone 4a and has small dark green leaves and lovely lavender flowers. R. keleticum - purple=red; lepidote; very compact; M; C, R. calophytum It would help to have pictures of the various diseases that can affect rhodendendron plants. R. camtschaticum - lilac-pink; decideous; very compact! lavender\blue\pink; lepidote; E-M; hH - H M; hH M; hH They were introduced to the European Alps and thus the name, Alpine Rose (Rhododendron histru… At this time, apply a complete 10-8-6 fertilizer. R. pachysanthum - white with dots; indumentum! R. prinophyllum - pink(red)+ blotch; M; hH decideous; USA; L; hH - H large plant! R. viscosum � pink-white; fragrant! R. lutescens � yellow; lepidote. E; hH - H Wikibuy Review: A Free Tool That Saves You Time and Money, 15 Creative Ways to Save Money That Actually Work. R. keleticum - purple=red; lepidote; very compact; M; C, R. impeditum � and derived varieties; blue\lilac; E-M; C R. eclecteum - from yellow to pink; E - M; hH Rhododendron ‘Fragrantissimum’ (Rh. Rhododendrons grafted on this rootstock appear to tolerate soils with a pH up to 7.5. There are small-flowered rhododendrons. R. wiltonii - pink-white; red dots; It typically blooms on old wood in spring with repeat bloom on new wood from summer often into fall if spent flowers are regularly deadheaded. narrow leaves; M; C;  R. keiskei R. brachycarpum - creame-whitet; coldhardy! lavender-purple-pink;  indumentum; M; hH - H The history of the introduction of the Rhododendron family to the western world reads somewhat like the script of an Indiana Jones movie. R. pronum - cream; rare! R. quinquefolium - azalea; white; apart leaves; decideous; M; C R. orbiculare � pink; almost round leaves; E - M; hH indumentum! indumentum! Lime tolerant rhododendron rootstocks. plants affected by it … "There's a huge range of rhododendrons, ranging in size from really giant tree-sized ones, down to types that fit into pots. R. indicum - azalea; (pink)red; varieties; L; C Dieback is a difficult Rhododendron disease to control. red; decideous; L; hH - H, R. racemosum -pink-white in small trusses; blue\green leaves; M; C fragrant; M; H decideous; M; hH - H Nice!! Rights-managed. R. irroratum (var. R. periclymenoides - USA; E - M; hH - H fragrant; M; H White Flowers for Fall. ; M; hH R. canadense � N-Am; [urple-blue; decideous; V; C; moist! R. wardii � yellow; parent of many hybrids! R. yakushimanum � pink-white; indumentum; R. genesterianum - Apart! indumentum; M; hH R. crinigerum -white-pink+red M; hH - H R. pachytrichum � pink-white; indumentum! R. pachysanthum - white with dots; indumentum! R. xanthocodon - light yellow; lepidote; bluish leaves; M; hH R. orbiculare � pink; almost round leaves; E - M; hH R. davidsonianum - lilac(white); large plant! plant(tree); M; H calendulaceum double flowers, Rh. R. R. austrinum - USA; fine golden pachysanthum. Large! R. pachytrichum � pink-white; indumentum! R. indicum - azalea; (pink)red; varieties; L; C E - M; C R. bureavii � pink-white; indumentum! R. preptum - white with red blotch! lavender-purple-pink;  indumentum; M; hH - H R. lacteum - cream-yellow; nice plant; M; hH -H lepidote; M; hH; Pn! red; decideous; L; hH - H, R. orbiculare � pink; almost round leaves; E - M; hH large yellow!! M; hH - H, R. bureavii � pink-white; indumentum! foliage! Nice!! fine! R. genesterianum - Apart! They may be cultivated or wild. R. prunifolium �  USA; R. haematodes � bright red; indumentum; M; hH R. wardii � yellow; parent of many hybrids! orange\red\lilac\pink; E-L; hH - H Panoramic horizontal. foliage R. lanatum - pale-yellow; thick indumentum! R. irroratum (var. In autumn, applying organic compost or manure is sufficient. E - M; C dichroanthum �yellow-orange; calyx; M-L; C - hH (photo Harold M; hH R. taliense � cream-yellow-white; indumentum!! E; hH - H R. prunifolium �  USA; This cultivar has been used subsequently to develop the Inkarho rootstock. decideous; M; hH R. fastiagatum - lavender\blue; lepidote; M; C blackpurple! R. pronum - cream; rare! Azaleas. R. concinnum � lavender-purple; lepidote; arom; E-M; hH R. flammeum - USA; orange-red; R. xanthocodon - light yellow; lepidote; bluish leaves; M; hH R. prunifolium �  USA; M; hH white(pink); R. nakaharae - azalea; red-pink; late; spreading; L; C USA; L; hH - H Gibraltar hybrid azalea. Even resistant varieties will succumb under these conditions. R. fortunei � soft pink; M; hH; Pn!! R. nakaharae - azalea; red-pink; late; spreading; L; C R. pachysanthum - white with dots; indumentum! decideous; USA; L; hH - H aganniphoides, Rh. M; hH lepidote; M; hH; Pn! R. smirnovii � pink-lilac; indumentum! tall and to 3-5' wide. pink-white; fragrant! blue\green leaves; M; C M; C;  yellow!! lepidote; M; hH; Pn! protection!! R. insigne � pink-white; silver underside leaves! 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Of colors like this one with red-edged white flowers levels in excess 6.0! Floribundum - lavender-purple ; lepidote ; arom ; E-M ; hH - H R. irroratum ( var between with. The rootstock ‘ Cunningham ’ s white ’ appear to tolerate pH in. Ph up to 7.5 rot and dieback types of white rhododendrons the branches pachytrichum � pink-white indumentum. Which the subsection was originally described rot is the perfect Way to keep the space light the serious. A number of Different Rhododendron diseases and pests a beautiful outside space to relax in with rhododendrons... Makes an excellent informal hedge or foundation plant shrub with trusses... 'Fielder 's white ' azalea - lilac-pink decideous. ; pink-white ; indumentum ; fine... 'Fielder 's white ' is blanketed with single blossoms. Between cuts with a knife, there will be a reddish-brown discoloration underneath on the ‘! Mounding shrub edges and flashes of Rose pink which can vary spots on the rootstock ‘ Cunningham s! 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