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Azaleas are pry in Japan and have been so since hundreds of years ago when gardeners cultivated them for Imperial garden .
By now there are over 10,000 register or nominate smorgasbord worldwide.1Azalea Society of America . ( 2018b , August 14).Learn about azaleas . Retrieved March 10 , 2023 , fromhttps://www.azaleas.org/about-azaleas/

Among the untold many thousands of varieties of Azaleas , we present a representative selection from the various groups , several of the most popular ones , and our favourites .
“ Due to the large number of Azaleas that have been crossbreed and the many species available , there is an Azalea to suit every garden , from full sun to fill in , from dwarf to enceinte shrub , ” portion Colin Skelly , who has almost 15 year of experience as a Horticulturist and Consultant .
“ Look out for the RHS AGM recording label for render and essay plants in gardens or try something more rare and unusual . ”

1)R. luteum
gain a elevation of 2 - 3 m and a spread of up to 2 m.
This is a Caucasus - part species naturalize in the UK .
Classic funnel - shaped flowers are small at about 4.5 cm and are a lovely buttery yellow and display long , prominent stamens .

It is also very fragrant .
2)R. quinquefolium
A Nipponese metal money that is grow as a shrub , this species can produce to be a tree up to 7 m marvellous .
It is also strange both in its foliage and its flower .
The leafage , of a normal size of it and colour , display a purple lip .

The small 3 - 4 curium flowers are strange in being pendent and bell - like .
They have bland , pure whitened petals with light-headed green spots on the upper three petals and they bloom in late April and May .
3)R. schlippenbachii
This is a species native to Korea , Japan and the Russian Far East.2Rhododendron schlippenbachii Maxim.(n.d . ) . Kew Royal Botanic Gardens . Retrieved March 10 , 2023 , fromhttps://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:333307-1
usually grown to 1 - 2 G , this variety can accomplish an ultimate superlative of 5 m ; it is very cold - hardy .
The leaf is of particular note as the leaves are crimson - bronze when they come forth and in the autumn show a stunning show in yellowness , oranges , and Red River .

The improbable bloom are unusually open , are about 6 centimeter , and have suave flower petal .
The gentle fragrance utterly matches the blue-blooded hue of a translucent sick pink .
4)R. viscosum
This bushy works is a species aboriginal to Eastern and South - Eastern United States.3Rhododendron viscosum . ( n.d . ) . Wildflower Center . call up March 10 , 2023 , fromhttps://www.wildflower.org/plants/result.php?id_plant=rhvi2
It usually develop to a height of about 2 m and diffuse of about 1.5 m. It is very cold - stalwart .
The foliage has autumn interest , presenting shades of yellow , orangish and purple .

The little , tubelike - funnel shape bloom are only 2 - 2.5 atomic number 96 across and have narrow petals whose coloring varies ; they can be pure white , white with pink flake and run , or some flavor of pink .
It is a profuse bloomer . Flowers have a spicy , delightful fragrance .
5)R.‘Cecile’
The industrial plant has a bushy habit and reach about 2 G in peak and spread .
The flowers are great at 8 - 10 centimeter .
These have beautiful , gently - prance petals of a soothe pink shade , often mildly gradate , with a cherry throat and yellow - orange flash on the dorsal petal .

Flowers blossom in May through June . Compare with ‘ Berry Rose . ’
6)R. gibraltar
The plant life reach a height of 1.5 - 2 m and spread of 1 - 1.5 m.
The petals with their Robert F. Curl and folderal impart a pleasingly ruffled appearance to the bloom .
The color is rich and intense , from a flame orange to right vermilion , often with a yellow tinge .

mass medium - sized , about 6 centimeter flowers are fragrant . They bloom in May .
7)R.‘Hino Crimson’
This semi - dwarf attains a peak and spreadhead of about 1 m.
Foliage has some wintertime pursuit as it becomes reddish .
Small , 4.5 curium single mannequin bloom with suave , flattish petals bloom in May .

They are a upstanding colour ; an acute , thrilling hue of pinkish - red .
8)R.‘Purple Splendor’
Usually grows to 1 - 2 yard but can hit a height of 3 m.
It has a bushy and spreading habit ; it is quite cold - sturdy .
Flowers are both large at about 8 centimetre and also flower profusely in May .

The petals are smooth , while the colour is a rich shade of purple with a dark or red-faced pharynx and a instant with freckle on the dorsal petal .
9)R. occidentale
Though its 10 - twelvemonth tallness and circulate is about 2 m , this mintage can grow to several metres .
full open , the funnel - shape flower present a headliner - similar coming into court .
They are virgin livid , or white with pinkish streaks and tinges and sensationalistic flares , or some pastel feel .

The blossom are very limited , being magnanimous at 10 cm , sweet fragrant , and flower in late bounce and other summer – June and July .
10)R.‘Delicatissimum’
This miscellany has a summary , bushy habit and reach out a height and spread of 1 - 1.5 m.
leafage provides some fall interest .
Trumpet - forge flowers present a ‘ delicate ’ appearance , and are pallid ointment with a pallid pinkish flush , a pink streak or sector , and a yellow solar flare .

They are fragrant and bloom through June .
11)R.‘Mother’s Day’
A gnome with a compact , mound form of about 0.6 meter high and up to 1 m wide .
The leaves take on a bronze tone in wintertime .
The intermediate - sized flowers are about 6 cm and are hosepipe - in - hosepipe or double .

They are a whole color ; a brilliant Lipstick Red and bloom in May .
12)R.‘Fruit Salad’
The plant reach out 1.2 - 1.5 metre – the smallish blossom are about 5 centimeter .
They are funnel - shaped and present a virtuoso - like case .
The petals are a vivid pink with streaks of deep pink and red , while the dorsal petal is a ample orange , with side by side flower petal displaying light orange flashes .

The perfumed flower bloom in late June .
13)R.‘Elsie Lee’
A semi - dwarf smorgasbord that attains a height and spread of about 0.8 m.
Semi - double flowers with delightful , richly ruffled petals of a pale yet brilliant lilac - purple chromaticity .
mass medium - sized , about 6 centimeter prime blush in profusion in late May .

14)R. ‘Schneeperle’
midget variety of only about 0.35 m with a gap of 0.5 m having a creeping , clumping bod .
The flowers are small at about 4 curium and are in double form .
Like a spousal head covering they are snow-covered white but are embellished with a greenish - jaundiced - tinged pharynx .

The petals have wavy boundary and flowers bloom in May .
15)A.‘George L. Taber’
Grows to just over 2 m tall and just under 2 m spread .
It is very heat kind and the flowers have a classical funnel shape form and are orotund at 7 - 8 centimeter .
The smooth petals are a pale orchid chromaticity with an intense rosebush - mauve flare and flecks on the dorsal petal .

Flowers bloom in profuseness in mid- and late - spring .
16)R.‘Addy Wery’
This compact plant life extend to a tallness of up to 1.2 m.
Bears small horn - shaped heyday of 4 - 4.5 cm .
They are a abstruse , racy vermilion to red ; almost a solid people of color bar slight gradation from the centre .

bloom copiously in late April through former May .
17)R.‘Iro Hayama’
This semi - dwarf variety show has a mounding form and reaches a stature and spread of about 1 m.
It bears small , 4 cm trumpet - mold flowers .
The still petal are clean gently gradate to a wan lavender or sick mauve .

bloom present an elegant , soft appearance . bloom in May .
18)R.‘Panda’
Neither tubby nor pitch-dark - and - white ; rather , it bears the most frail , indeed fragile - seeming , of Azalea flowers .
This plant is a dwarf with a spreading habit that grows to only 30 - 40 cm .
The small flowers are only about 3 cm .

Petals are in an unusual imbricate form and are snow - white , appearing wispy or filmy , with the golden yellow of the anthers providing a hard contrast .
It bears a profuseness of flowers in May .
19) The Encore Series
Encore is a patented blade of re - blooming Azaleas that were tame in Lousiana as of late as the 1980s.4S. ( 2022b , September 29).Encore Azaleas result the way in LA . Encore Azalea . Retrieved March 10 , 2023 , fromhttps://encoreazalea.com/news/encore-varieties-lead-multi-season-azaleas/
They produce flowers , sometimes abundantly , from spring clear into fall , or produce bloom once in spring and again , often more copiously , in autumn .
They are relatively warmth - large-minded .

Azalea Types Explained
Evergreen Azaleas typically have a mound pattern and are compact whereas deciduous ones are usually taller with less ramification .
Evergreen
The evergreen forms bloom sooner in spring and do so profusely but the flowers are almost always unscented while the deciduous ones bloom in mid or late spring , with the flowers coming slower and less densely but typically having a sweetened scent .
Evergreen Azaleas , for the most part descend from sub - genus Tsutsusi , are separate into four groupings .
Hybrids from Japanese coinage likeR. kiusianum .

They are heavy , small plants , reaching just over a metre , and bloom in other outflow , usually extravagantly .
Many of the most desirable and popular evergreen plant Azaleas and RHS Award of Garden Merit recipients are Kurumes .
Also hybrid and also descend from Japanese specie and have nothing to do with India .

They are less dense and cock-a-hoop , attaining heights of over 2 m.
They bloom in mid - spring . They include exception like the ten - stamened ‘ George Lindley Taber ’ .
This chemical group is further sub - divided into cold-blooded - brave Southern Indian Azaleas which can be grow as garden works , and greenhouse Belgian Indian Azalea , which can the former as the Azalea of selection in England .

The third group of ‘ evergreen ’ hybrids comprises of the Kaempferi Azaleas which are usuallysemi - evergreen plant .
Like the Kurume Azaleas , these plant grow to about a metre but like the Southern Indian Azaleas they bloom in mid - to - late spring .
The 4th and last evergreen grouping of hybrids are Reblooming Azaleas .

They too share attributes with both ‘ major ’ groups , being similar to the Kurumes in plant size of it but similar to the Southern Indian Azaleas in flowers and foliage .
This grouping is very attractive for blossom double , once in leaping and then again , usually more extravagantly , in fall .
Encore is probably the most well - know and popular producer of such Azaleas and is on the means to becoming a grouping of its own .

Deciduous
Deciduous Azaleas which mainly derive from sub - genus Pentanthera coinage are normally divided into four groupings .
The former hybridisation of deciduous species are the ‘ Ghent Azaleas ’ , which date from the 1820s.518 . Ghent - azalea . ( n.d . ) . University of Bergen . call back March 10 , 2023 , fromhttps://www.uib.no/en/universitygardens/137155/18-ghent-azaleas
These descend from crosses of American species with the lonesome European species .

These industrial plant have a somewhat rounded form with a height and fan out of about 2.5 m.
They are broadly disease - resistant , robust plants ; flowers are modest and fragrant , and their double soma are notable .
The Belgian - Dutch ‘ Mollis Azaleas ’ date from about 1840 and deduce mainly fromR. japonicumand not fromR. molle , notwithstanding the ( erroneous ) nomenclator.6Rhododendron : The Hybrids / Azalea Hybrids . ( n.d . ) . tree and Shrubs Online . Retrieved March 10 , 2023 , fromhttps://treesandshrubsonline.org/articles/rhododendron-the-hybrids-azalea-hybrids-deciduous/
They have a mounded form with a height of about 1.5 m but a spread of nearly 2.5 m.
They are more dusty - intrepid , while their flowers are almost always unscented and the colour pass through the orange - Marxist spectrum .
The ‘ Knap Hill Azaleas ’ are a miscellany of loan-blend that descend from both East Asiatic and American mintage as well as the sole European one .
This group was spawn by Watererpere et filsfrom the 1850s onward .
diverseness commonly grow to about 1.5 m but some attain heights of 2.5 m.
spread are typically from 2 - 3 m.
Flowers are clearly turgid and often have saturated hues in a wide spectrum from yellowish through crimson , and include White and pink .
last , we have the ‘ Exbury Strain ’ of the ‘ Knap Hills ’ or the ‘ Exbury Azalea ’ Group that was naturalize in the 1920s , mostly deriving from the Knap Hills.7Exbury Azaleas – From story To Your Garden . ( n.d . ) . Virginia Tech . retrieve March 10 , 2023 , fromhttps://scholar.lib.vt.edu/ejournals/JARS/v40n1/v40n1-cash1.htm
These reach height of 1 - 1.5 m and are stale - audacious varieties .
Flowers are tumid and have especially deep and productive hue in the yellow to red spectrum .
Seeds and flower of this air were export to the United States , and now the Exburys are considered the most important grouping of deciduous Azaleas in American flower gardening .
It is to be noted that the above horticultural sorting is an ‘ Atlanticist ’ one .
Japanese , Chinese , and Korean horticulturalists and their respective floral trades have their own classification and groupings for Azalea cultivar .