Index

R. 'Griselda'

Rhododendron Hybrid

R. 'Fabia Group' X R. 'Margaret Dunn Group'

Hybridized By: Henny, Rudolph. Brooks, Oregon, USA, 1947

R. 'Grisette Group'

Rhododendron Cultivar group

? X ?

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

R. 'Gristede'

Rhododendron Hybrid

R. russatum X ?

Hybridized By: Bruns, J Nursery. Bad Zwischenahn, Germany, 1961

R. groenlandicum

Species

Subgenus: Rhododendron
Section: Rhododendron
Subsection: Ledum

R. 'Groovy No. 1'

Rhododendron Hybrid

R. 'Tony's Gift' X R. 'Mrs T H Lowinsky'

Hybridized By: Delp Weldon E.. Harrisville, Pensylvania, USA, 1995

R. 'Groovy Pink'

Rhododendron Hybrid

? X ?

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

R. 'Grosclaude'

Rhododendron Hybrid

R. haematodes ssp haematodes X R. facetum

Hybridized By: Rothschild, L. de. Founder of Exbury Gardens, UK, 1941

R. 'Grosclaude Group'

Rhododendron Cultivar group

? X ?

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

R. 'Grosclaude Group x Britannia'

Rhododendron Hybrid

R. 'Grosclaude Group' X R. 'Britannia'

Hybridized By: Unknown

R. 'Grosclaude x griersonianum'

Rhododendron Hybrid

R. 'Grosclaude' X R. griersonianum

Hybridized By: No hybridiser registered

R. grothhausii

Species

Subgenus: Rhododendron
Section: Rhododendron
Subsection: Maddenia

R. 'Ground Hog'

Azalea Hybrid

? X ?

Hybridized By: Weston Nurseries

R. 'Grouse'

Rhododendron Hybrid

? X ?

Hybridized By: Cox, Peter A.. Glendoick, Scotland

R. 'Grove City'

Rhododendron Hybrid

? X ?

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

R. 'Grumpy'

Rhododendron Hybrid

R. degronianum ssp yakushimanum X ?

Hybridized By: Waterer (Bagshot). Surrey, England, 1970

R. 'Gruss an Harrislee'

Rhododendron Hybrid

R. degronianum ssp yakushimanum X R. fortunei ssp discolor

Hybridized By: Robeneck, H.. Westerstede, Germany, 1970

R. 'Grussendorf'

Azalea Hybrid

? X ?

Hybridized By: Stahnke, O. | Sassenburg | Germany

R. 'Gräfin Anna Thun'

Azalea Hybrid

? X ?

Hybridized By: Liebig, L.L. | Dresden | Germany, 1895

R. 'Gräfin Kirchbach'

Rhododendron Hybrid

? X ?

Hybridized By: von Martin, V.. Rothenburg/Oberlausitz, Germany

R. 'Gräfin Sonja'

Rhododendron Hybrid

R. 'insigne x El Alamein' X R. 'Blue Peter'

Hybridized By: Bruns, J Nursery. Bad Zwischenahn, Germany, 1970

R. 'Gräfin Thun'

Azalea Hybrid

? X ?

Hybridized By: Verschaffelt, J. | Ghent | Belgium, 1861

R. 'Grünlich'

Rhododendron Hybrid

? X ?

Hybridized By: Unknown

R. guangnanense

Species

Subgenus: Rhododendron
Section: Rhododendron
Subsection: Triflora

R. 'Guardian Fir'

Rhododendron Hybrid

? X ?

Hybridized By: Lem Halfdan. Seattle, Washington, USA

R. 'Guardsman Group'

Rhododendron Hybrid

? X ?

Hybridized By: Loder, Sir Giles. Cuckfield, West Sussex, England

R. 'Gudrun'

Rhododendron Hybrid

R. 'Eggebrechtii' X R. 'Madame Linden'

Hybridized By: Seidel, T.J.R.. Dresden/Grüngräbchen, Germany, 1905

R. 'Guelder Rose'

Azalea Hybrid

? X ?

Hybridized By: Van Houtte, L. B. (Louis Benoit) | Gentbrugge | Belgium, 1871

R. 'Guepier'

Rhododendron Hybrid

? X ?

Hybridized By: Ingram, C.. Benenden, Kent, England

R. 'Guercino'

Rhododendron Hybrid

? X ?

Hybridized By: Waterer (Bagshot). Surrey, England

R. 'Guerdon'

Azalea Hybrid

? X ?

Hybridized By: Morrison, B.Y. | Pass Christian, Mississippi | USA

R. 'Guido'

Rhododendron Hybrid

? X ?

Hybridized By: Waterer, H. (Knaphill). Woking, Surrey (Knaphill), UK

R. 'Guido Gezelle'

Azalea Hybrid

? X ?

Hybridized By: Wille, C.J. & Co

R. 'Guido Piacenza'

Rhododendron Hybrid

? X ?

Hybridized By: Parco Burcina. Pollone, Biella, Italy

R. guihainianum

Species

Subgenus: Hymenanthes
Section: Pontica
Subsection: Fortunea

R. 'Guillaume 1er'

Azalea Hybrid

? X ?

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

R. 'Guillaume II'

Azalea Hybrid

? X ?

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

R. 'Guillaume III'

Azalea Hybrid

? X ?

Hybridized By: Vervaene, D. | Ghent | Belgium

R. 'Guillaume Tell'

Rhododendron Hybrid

? X ?

Hybridized By: de Cock, L.

R. guizhongense

Species

Subgenus: Tsutsusi
Section: Tsutsusi

R. guizhouense

Species

Subgenus: Hymenanthes
Section: Pontica
Subsection: Irrorata

R. 'Gulliver'

Rhododendron Hybrid

? X ?

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

R. 'Gulnare'

Rhododendron Hybrid

? X ?

Hybridized By: Standish & Noble. Bagshot, Surrey, England

R. 'Gum Drop'

Azalea Hybrid

? X ?

Hybridized By: Garrett, J. & D.

R. 'Gumpo Mauve'

Azalea Hybrid

? X ?

Hybridized By: Camellia Lodge Nursery

R. 'Gumpo Petunia'

Azalea Hybrid

? X ?

Hybridized By: Australia

R. 'Gumpo Pink and White'

Azalea Hybrid

? X ?

Hybridized By: Australia

R. 'Gumpo Pink Spray'

Azalea Hybrid

? X ?

Hybridized By: Australia

R. 'Gumpo Salmon'

Azalea Hybrid

? X ?

Hybridized By: Camellia Lodge Nursery

R. 'Gumpo White'

Azalea Hybrid

? X ?

Hybridized By: Unknown

R. 'Gunbi'

Azalea Hybrid

? X ?

Hybridized By: Chugai Nursery Co. | Kobe-city, Hyogo | Japan

R. 'Gundula'

Rhododendron Hybrid

R. 'Hyperion' X R. 'Herme'

Hybridized By: Hachmann, Hans. Barmstedt in Holstein, Germany, 1980