Index

R. 'Ariadne'

Azalea Hybrid

? X ?

Hybridized By: Smet-Duvivier. L. de | St. Amandsberg | Belgium, 1888

R. 'Ariel'

Azalea Hybrid

R. 'Standishii' X ?

Hybridized By: White, H. | Sunningdale | UK, 1936

R. 'Ariel'

Vireya Hybrid

R. 'Lord Wolseley' X ?

Hybridized By: Unknown

R. 'Ariel Group'

Rhododendron Cultivar group

R. fortunei ssp discolor X R. 'Memoir'

Hybridized By: Rothschild, L. de. Founder of Exbury Gardens, UK, 1933

R. 'Arismajesty'

Azalea Hybrid

R. 'Ostalett' X ?

Hybridized By: Bergman, W. R., 1999

R. 'Arista'

Azalea Hybrid

? X R. 'Strawberry Rose'

Hybridized By: Girard, P.E. | Geneva, Ohio | USA

R. 'Aristide Briand'

Rhododendron Hybrid

R. 'Pink Pearl' X ?

Hybridized By: Endtz, L.J. & Co. Boskoop, Netherlands, 1950

R. arizelum

Species

Subgenus: Hymenanthes
Section: Pontica
Subsection: Falconera

R. arizelum 'Brodick'

Rhododendron Species Selection

Selected By: Unknown

Subgenus: Hymenanthes
Section: Pontica
Subsection: Falconera

R. arizelum 'Kaupo'

Rhododendron Species Selection

Selected By: Vaartnou, H., 1978

Subgenus: Hymenanthes
Section: Pontica
Subsection: Falconera

R. 'Arkadius'

Rhododendron Hybrid

R. 'Scintillation' X R. 'Furnivall's Daughter'

Hybridized By: Hachmann, Hans. Barmstedt in Holstein, Germany, 1966

R. 'Armistice Day'

Rhododendron Hybrid

? X ?

Hybridized By: Unknown

R. armitii

Species

Subgenus: Rhododendron
Section: Vireya
Subsection: Euvireya

R. 'Arndt'

Rhododendron Hybrid

? X ?

Hybridized By: Seidel, T.J.R.. Dresden/Grüngräbchen, Germany, 1918

R. 'Arne Jensen'

Vireya Hybrid

R. loranthiflorum ssp loranthiflorum X R. 'Taylori'

Hybridized By: Unknown

R. 'Arneson Baby Doll'

Azalea Hybrid

? X ?

Hybridized By: Arneson, Ivan & Robertha | Arneson Nursery, Canby, Oregon | USA

R. 'Arneson Gem'

Azalea Hybrid

R. 'C.B van Nes x Koster's Brilliant Red' X ?

Hybridized By: Arneson, Ivan & Robertha | Arneson Nursery, Canby, Oregon | USA, 1975

R. 'Arneson Golden Solitaire'

Azalea Hybrid

? X ?

Hybridized By: Arneson, Ivan & Robertha | Arneson Nursery, Canby, Oregon | USA, 1986

R. 'Arneson Little Gem'

Azalea Hybrid

? X ?

Hybridized By: Arneson, Ivan & Robertha | Arneson Nursery, Canby, Oregon | USA

R. 'Arneson Pink'

Azalea Hybrid

R. 'Gallipoli' X R. 'Cecile'

Hybridized By: Arneson, Ivan & Robertha | Arneson Nursery, Canby, Oregon | USA, 1973

R. 'Arneson Ruby'

Azalea Hybrid

R. 'Gibraltar x Favor Major' X R. 'Gibraltar x Favor Major'

Hybridized By: Arneson, Ivan & Robertha | Arneson Nursery, Canby, Oregon | USA, 1983

R. 'Arnhild Poedtke'

Rhododendron Hybrid

? X ?

Hybridized By: Hachmann, Hans. Barmstedt in Holstein, Germany

R. 'Arnim'

Rhododendron Hybrid

R. catawbiense X ?

Hybridized By: Seidel, T.J.R.. Dresden/Grüngräbchen, Germany, 1906

R. 'Arnita'

Rhododendron Hybrid

R. smirnowii X ?

Hybridized By: Gertnere, D.

R. 'Arnold Group'

Azalea Hybrid

? X ?

Hybridized By: Unknown

R. 'Arnold Piper'

Rhododendron Hybrid

R. 'Anna' X R. 'Marinus Koster'

Hybridized By: Lem Halfdan. Seattle, Washington, USA, 1971

R. 'Arnošt Silva-Tarouca'

Rhododendron Hybrid

R. decorum ssp decorum X R. 'Caractatus'

Hybridized By: Kavka, B.. Pruhonice, Czech Republic, 1972

R. 'Aromi Sunny-side-up'

Azalea Hybrid

R. austrinum X R. 'Golden Sunset'

Hybridized By: Aromi, E.J | Mobile, Alabama | USA, 1978

R. 'Aromi Sunrise'

Azalea Hybrid

R. 'Hiawatha' X R. austrinum

Hybridized By: Aromi, E.J | Mobile, Alabama | USA, 1978

R. 'Aromi Sunstruck'

Azalea Hybrid

R. 'White Swan' X ?

Hybridized By: Aromi, E.J | Mobile, Alabama | USA, 1971

R. 'Aronense Group'

Azalea Hybrid

? X ?

Hybridized By: Unknown

R. 'Aronimink'

Rhododendron Hybrid

R. 'Pygmalion x haematodes' X R. 'Wellfleet'

Hybridized By: Dexter, C.O.. Sandwich, MA, USA, 1940

R. 'Arouca'

Azalea Hybrid

R. occidentale 'Stagecoach Frills' X R. 'Twilight Sky'

Hybridized By: Hübbers, K-H. | Kranenburg | Germany

R. 'Arpčge'

Azalea Hybrid

R. viscosum X R. 'Koster's Brilliant Red'

Hybridized By: Felix, B.B.C. | Felix & Dijkhuis, Boskoop | Netherlands, 1938

R. 'Arromanches'

Azalea Hybrid

? X ?

Hybridized By: Hyde, W.G.T., 1960

R. 'Artemis'

Vireya Hybrid

R. 'Ophelia' X R. javanicum ssp teysmannii

Hybridized By: Unknown

R. 'Arthur Bedford'

Rhododendron Hybrid

R. ponticum X ?

Hybridized By: Lowinsky T.H.. Tittenhurst, Sunninghill, Bershire, UK, 1936

R. 'Arthur J. Ivens'

Rhododendron Hybrid

R. williamsianum X R. fortunei ssp discolor

Hybridized By: Ivens, 1932

R. 'Arthur Osborn'

Rhododendron Hybrid

R. sanguineum ssp didymum X R. griersonianum

Hybridized By: Kew. Royal Botanical Gardens, Surrey, England, 1929

R. 'Arthur Stevens'

Rhododendron Hybrid

R. souliei X R. 'Coronation Day'

Hybridized By: Embley Park. (J.J. Crossfield), Hampshire, England, 1967

R. 'Arthur Warren'

Rhododendron Hybrid

R. 'Dido Group' X R. 'Mrs Lindsay Smith'

Hybridized By: Slocock, Walter C.. Goldsworth Nursery, Woking, UK, 1952

R. 'Arthur's Choice'

Vireya Hybrid

R. 'christianae x viriosum' X R. 'christianae x viriosum'

Hybridized By: Unknown

R. arunachalense

Species

Subgenus: Tsutsusi
Section: Tsutsusi

R. 'Asa-gasumi'

Azalea Hybrid

? X ?

Hybridized By: Ito, Ihei | Register from 1692 | Japan, 1692

R. 'Asahi Zuru'

Azalea Hybrid

? X ?

Hybridized By: Unknown

R. 'Asahi-sakigake'

Azalea Hybrid

? X ?

Hybridized By: Unknown

R. 'Asahiryu'

Azalea Hybrid

? X ?

Hybridized By: Unknown

R. 'Ascot Brilliant'

Rhododendron Hybrid

R. 'Blandyanum' X R. thomsonii ssp thomsonii

Hybridized By: Standish, J.. Bagshot, Surrey, England, 1861

R. 'Ashes of Roses'

Rhododendron Hybrid

R. fortunei ssp fortunei X ?

Hybridized By: Dexter, C.O.. Sandwich, MA, USA, 1943

R. 'Ashley Ruth'

Azalea Hybrid

R. 'Asahi-sakigake' X R. 'Margaret Douglas'

Hybridized By: Stewart, Robert | Springfield, Virginia | USA, 1994

R. 'Asian Sunrise'

Rhododendron Hybrid

? X ?

Hybridized By: Childers, A.A.