Index

R. 'Diplomat'

Rhododendron Hybrid

? X ?

Hybridized By: Delp Weldon E.. Harrisville, Pensylvania, USA

R. 'Dippe'

Rhododendron Hybrid

? X ?

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

R. 'Directeur André Van Slycken'

Azalea Hybrid

? X ?

Hybridized By: Heursel, Jozef | Melle | Belgium

R. 'Directeur Augustin'

Azalea Hybrid

? X ?

Hybridized By: Verschaffelt, A. (Alexander) | Ghent | Belgium, 1860

R. 'Directeur Charles Baumann'

Azalea Hybrid

? X ?

Hybridized By: Baumann, J. | Ghent | Belgium, 1869

R. 'Directeur Dorsman'

Rhododendron Hybrid

R. 'Wilgen's Ruby' X R. 'May Day'

Hybridized By: Research Station for Woody Nursery Crops. Boskoop, Netherlands, 1970

R. 'Direkteur Moerlands'

Azalea Hybrid

? X ?

Hybridized By: Unknown

R. 'Direkteur van Slycken'

Azalea Hybrid

R. 'Excelsior' X R. 'Rex'

Hybridized By: Heursel, Jozef | Melle | Belgium, 1988

R. 'Direktor E Hjelm'

Rhododendron Hybrid

R. fortunei ssp fortunei X ?

Hybridized By: Koster, D.A., 1938

R. 'Direktor Siebert'

Rhododendron Hybrid

R. 'Charlie Waterer' X R. 'Pink Pearl'

Hybridized By: Koster, D.A., 1907

R. 'Dirk Bosch'

Azalea Hybrid

? X ?

Hybridized By: Unknown

R. 'Disca'

Rhododendron Hybrid

R. fortunei ssp discolor X R. 'Caroline'

Hybridized By: Gable, J.B.. Stewartstown, Pennsylvania, USA, 1938

R. 'Disco Dancer'

Azalea Hybrid

R. 'Ungetsu-no-hikari' X R. 'Dorothy Clark'

Hybridized By: Vines,R.C. | Amelia Island, Florida | USA, 1997

R. 'Discora'

Rhododendron Hybrid

R. 'Edward S. Rand' X R. fortunei ssp discolor

Hybridized By: Robeneck, H.. Westerstede, Germany, 1947

R. 'Discretion'

Rhododendron Hybrid

R. degronianum ssp yakushimanum X R. 'Fred Wynniatt Group'

Hybridized By: Drayson R.J.R. Wimborne, Dorset, England, 1979

R. disterigmoides ssp astromontium

Species

Subgenus: Rhododendron
Section: Vireya
Subsection: Euvireya

R. disterigmoides ssp disterigmoides

Species

Subgenus: Rhododendron
Section: Vireya
Subsection: Euvireya

R. 'Distinction'

Rhododendron Hybrid

R. campanulatum ssp campanulatum X ?

Hybridized By: Waterer (Bagshot). Surrey, England, 1865

R. 'Distincto'

Rhododendron Hybrid

? X ?

Hybridized By: Hinerman, D.L.. Ann Arbor, Michigan, USA

R. 'Dita Krenberga'

Azalea Hybrid

? X R. 'Uguns'

Hybridized By: Kondratovičs, Rihard | Riga | Latvia, 1978

R. 'Ditto'

Rhododendron Hybrid

? X ?

Hybridized By: Unknown

R. 'Ditto's Mom'

Rhododendron Hybrid

? X ?

Hybridized By: Unknown

R. 'Diva'

Rhododendron Hybrid

R. 'Ladybird' X R. griersonianum

Hybridized By: Rothschild, L. de. Founder of Exbury Gardens, UK, 1936

R. 'Diva Group'

Rhododendron Cultivar group

R. 'Ladybird Group' X R. griersonianum

Hybridized By: Rothschild, L. de. Founder of Exbury Gardens, UK, 1936

R. diversipilosum

Species

Subgenus: Rhododendron
Section: Rhododendron
Subsection: Ledum

R. 'Dixie Belle'

Rhododendron Hybrid

R. 'Brandt'sTropicana' X R. 'Apricot Fantasy'

Hybridized By: Weeks, C.. Westgate Garden Nursery, Eureka, California, USA, 1996

R. 'Dixie Lee Ray'

Rhododendron Hybrid

R. 'Zuiderzee' X R. 'Naomi Pink Beauty'

Hybridized By: Larson, H.L.. Tacoma, Washington, USA, 1958

R. 'Dixie Red'

Azalea Hybrid

? X ?

Hybridized By: Pender, D. Jr,, 1987

R. 'Dixy Lee Ray'

Rhododendron Hybrid

R. 'Zuiderzee' X R. 'Naomi Pink Beauty'

Hybridized By: Larson, H.L.. Tacoma, Washington, USA, 1958

R. 'Django'

Rhododendron Hybrid

R. 'Abendglut' X R. brachycarpum ssp tigerstedtii

Hybridized By: Hachmann, Hans. Barmstedt in Holstein, Germany, 1985

R. 'Doberlug'

Azalea Hybrid

? X ?

Hybridized By: Unknown

R. 'Doberluger Weisse'

Rhododendron Hybrid

X

Hybridized By: Hermann, E., 1964

R. 'Doc'

Rhododendron Hybrid

R. degronianum ssp yakushimanum X R. 'Corona'

Hybridized By: Waterer John, Sons & Crisp. Bagshot, Surrey, UK, 1972

R. 'Doc Tolstead'

Rhododendron Hybrid

R. fortunei ssp fortunei X ?

Hybridized By: Schumacher, F.W., 1958

R. 'Docteur Auguste Cambier'

Azalea Hybrid

? X ?

Hybridized By: Van Houtte, L. B. (Louis Benoit) | Gentbrugge | Belgium, 1875

R. 'Docteur Bergmann'

Azalea Hybrid

? X ?

Hybridized By: Unknown

R. 'Docteur Bergmann Albus'

Azalea Hybrid

? X ?

Hybridized By: Unknown

R. 'Docteur Binet'

Azalea Hybrid

? X ?

Hybridized By: Verschaffelt, J. | Ghent | Belgium, 1869

R. 'Doctor A. Blok'

Rhododendron Hybrid

R. 'Pink Pearl' X ?

Hybridized By: Endtz, L.J. & Co. Boskoop, Netherlands, 1937

R. 'Doctor Ans Heyting'

Rhododendron Hybrid

R. 'Goldsworth Orange' X R. 'Stanley Davies'

Hybridized By: Boskoop. Research Center fo Arboreus Crops, Netherlands, 1981

R. 'Doctor Arnold'

Azalea Hybrid

? X ?

Hybridized By: Camellia Lodge Nursery

R. 'Doctor Arnold W. Endtz'

Rhododendron Hybrid

R. 'Pink Pearl' X ?

Hybridized By: Endtz, L.J. & Co. Boskoop, Netherlands, 1927

R. 'Doctor Denis Percell'

Rhododendron Hybrid

R. maximum X R. 'Leo Group'

Hybridized By: Goodrich, J.M. (Jane) & Ray. Vienna, Virginia, USA, 1971

R. 'Doctor E.A. Merritt'

Azalea Hybrid

? X ?

Hybridized By: Unknown

R. 'Doctor Evans'

Vireya Hybrid

R. viriosum X R. zoelleri

Hybridized By: Unknown

R. 'Doctor Ferguson'

Rhododendron Hybrid

? X ?

Hybridized By: Methven, T. & Son. Edinburgh, Scotland, 1890

R. 'Doctor H. Colijn'

Azalea Hybrid

? X ?

Hybridized By: Felix & Dijkhuis | Boskoop | Netherlands

R. 'Doctor H.B. Reid'

Rhododendron Hybrid

? X ?

Hybridized By: Reid, C.

R. 'Doctor H.C. Dresselhuys'

Rhododendron Hybrid

R. 'Atrosanguineum' X R. 'Doncaster'

Hybridized By: den Ouden & Son, 1920

R. 'Doctor H.C. Karl Förster'

Rhododendron Hybrid

R. 'Linswegeanum Group' X R. williamsianum

Hybridized By: Hobbie, Dietrich G.. Westerstede/Linswege, Germany, 1952

R. 'Doctor Henry Schroeder'

Azalea Hybrid

R. 'Mildred Mae' X R. 'Avalanche'

Hybridized By: Schroeder, H.R., 1973