Index

R. 'Black Beauty'

Rhododendron Hybrid

? X ?

Hybridized By: Slocock, Walter C.. Goldsworth Nursery, Woking, UK, 1929

R. 'Black Eye'

Rhododendron Hybrid

R. 'Anah Kruschke' X R. 'Purple Splendour'

Hybridized By: Unknown

R. 'Black Magic'

Rhododendron Hybrid

R. 'The Honourable Jean Marie de Montague' X R. 'Leo'

Hybridized By: Greer, Harold E.. Eugene, Oregon, USA, 1982

R. 'Black Prince'

Rhododendron Hybrid

R. thomsonii ssp thomsonii X R. 'Romany Chal'

Hybridized By: Brandt, Lester E.. Tacoma, Washington, USA

R. 'Black Satin'

Rhododendron Hybrid

R. 'PJM Group' X ?

Hybridized By: Mezitt, E.V.. Weston Nurseries, Hopkinton, Massachusetts, USA, 1972

R. 'Black Sport'

Rhododendron Hybrid

? X ?

Hybridized By: Nelson, B.. Squamish, Washington, USA, 1983

R. 'Black Widow'

Rhododendron Hybrid

R. 'Frank Galsworthy x Leo' X R. 'Warlock'

Hybridized By: Thompson, R. W. Waldport, Oregon, USA, 1992

R. blackii

Species

Subgenus: Rhododendron
Section: Vireya
Subsection: Euvireya

R. 'Blanche Superbe'

Azalea Hybrid

? X ?

Hybridized By: Unknown

R. 'Blandyanum'

Rhododendron Hybrid

? X ?

Hybridized By: Unknown

R. 'Blaney's Blue'

Rhododendron Hybrid

R. augustinii ssp augustinii 'Tower Court' X R. 'Blue Diamond Group'

Hybridized By: Blaney, L.T.. Oregon State University, Oregon, USA, 1974

R. 'Blanka'

Rhododendron Hybrid

R. 'Babette' X R. 'Hachmann's Ornament x Furnivall's Daughter'

Hybridized By: Hachmann, Hans. Barmstedt in Holstein, Germany, 1977

R. 'Blankenese'

Rhododendron Hybrid

R. 'Scintillation' X R. degronianum ssp yakushimanum 'Koichiro Wada'

Hybridized By: Hachmann, Hans. Barmstedt in Holstein, Germany, 1983

R. 'Blattgold'

Rhododendron Hybrid

? X ?

Hybridized By: Stöckman, E.A.. Baumschule, Bad-Zwischenahn-Rostrup, Germany

R. 'Blaubart'

Rhododendron Hybrid

? X ?

Hybridized By: Unknown

R. 'Blaue Jungs'

Rhododendron Hybrid

R. 'Hyperion' X R. 'Purple Splendour'

Hybridized By: Wieting, J.. Baumschulen, Gisselhorst/Westerstede, Germany

R. 'Blaue Mauritius'

Rhododendron Hybrid

R. impeditum X ?

Hybridized By: Unknown

R. 'Blauer Traum'

Rhododendron Hybrid

R. catawbiense 'Catawbiense Grandiflorum' X R. 'Purple Splendour'

Hybridized By: Meltzer, H.L.. Neustadt a/d Waldnaab, Germany, 1984

R. 'Blaze'

Rhododendron Hybrid

? X ?

Hybridized By: Leach, Dr. David G.. North Madison, Ohio, USA

R. 'Blazeaway'

Rhododendron Hybrid

R. arboreum ssp arboreum X R. 'Magnum'

Hybridized By: O'Rourke, H.. Burnie, Tasmania, Australia, 1984

R. 'Blazecheck'

Rhododendron Hybrid

? X ?

Hybridized By: Unknown

R. 'Blazing Grace'

Rhododendron Hybrid

R. 'Percy Wiseman' X R. 'September Song'

Hybridized By: Ahern, T. (Tom). Bethlehem, PA, USA, 1994

R. 'Blessed Event'

Rhododendron Hybrid

R. 'John Coutts Group' X R. 'Sarita Loder'

Hybridized By: Lyons, M.W.. Eugene, Oregon, USA

R. 'Bleuń Skaer'

Rhododendron Hybrid

R. 'Double Date' X R. griersonianum

Hybridized By: Le Duigou, L., 2012

R. 'Blewbury'

Rhododendron Hybrid

R. roxieanum var roxieanum X R. anwheiense

Hybridized By: Crown Estate Commissioners. Windsor, Berkshire, England, 1969

R. 'Blimey Limey'

Rhododendron Hybrid

R. 'Tortoiseshell Wonder' X R. 'Evening Glow'

Hybridized By: Stockman, M.. Port Angeles, Washington, USA, 1980

R. 'Blinklicht'

Rhododendron Hybrid

R. 'Nova Zembla' X R. 'Mars'

Hybridized By: Hachmann, Hans. Barmstedt in Holstein, Germany, 1960

R. 'Blithe Spirit'

Rhododendron Hybrid

R. 'Rhonda' X R. 'Boulter's Robyn'

Hybridized By: O'Rourke, H.. Burnie, Tasmania, Australia, 1987

R. 'Blitz'

Rhododendron Hybrid

R. haematodes ssp haematodes X R. 'G.A. Sims'

Hybridized By: Clark, R.W.. Olympia, Washington, USA, 1945

R. 'Blizzard'

Azalea Hybrid

R. 'Lilacinum x Willy' X R. 'Mrs Carmichael'

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

R. bloembergenii

Species

Subgenus: Rhododendron
Section: Vireya
Subsection: Euvireya

R. 'Blonde Bombshell'

Vireya Hybrid

R. laetum X

Hybridized By: Unknown

R. 'Blonde Venus'

Vireya Hybrid

X R. laetum

Hybridized By: Unknown

R. 'Blondie'

Rhododendron Hybrid

R. 'Nereid Group x fortunei ssp discolor' X R. 'Russell Harmon'

Hybridized By: Leach, Dr. David G.. North Madison, Ohio, USA, 1970

R. 'Blondie'

Vireya Hybrid

R. 'Simbu Sunset' X R. 'Buttermilk'

Hybridized By: Saperstein, S., Australia

R. 'Blondine'

Azalea Hybrid

? X ?

Hybridized By: No hybridiser registered, 1875

R. 'Bloodline'

Rhododendron Hybrid

R. 'Britannia' X R. 'Cornubia Group'

Hybridized By: Van de Ven K.. Olinda, Victoria, Australia, 1974

R. 'Bloomin' Charlie'

Rhododendron Hybrid

R. 'Rotha' X R. 'Alibaby'

Hybridized By: Stockman, M.. Port Angeles, Washington, USA, 1980

R. 'Blossom's Blaze'

Rhododendron Hybrid

? X ?

Hybridized By: McBrier, B.P., 1998

R. 'Blowout'

Rhododendron Hybrid

R. 'Goody Goody' X R. 'Si Si'

Hybridized By: Delp Weldon E.. Harrisville, Pensylvania, USA, 1982

R. 'Blue and Gold'

Rhododendron Hybrid

R. ponticum X ?

Hybridized By: Whitney, William E.. Brinnon, Washington, USA

R. 'Blue Baron'

Rhododendron Hybrid

R. 'Gletschernacht' X R. 'Waltham'

Hybridized By: Mezitt, E.V.. Weston Nurseries, Hopkinton, Massachusetts, USA, 1981

R. 'Blue Beard'

Rhododendron Hybrid

? X ?

Hybridized By: Davies, I. Ormskirk, Lancashire, England, 1890

R. 'Blue Boy'

Rhododendron Hybrid

R. 'Blue Ensign' X R. 'Purple Splendour'

Hybridized By: Watson, E.M. Mrs. (Elsie). Kirkland, WA, USA, 1965

R. 'Blue Boy x Black Prince'

Rhododendron Hybrid

R. 'Blue Boy' X R. 'Black Prince'

Hybridized By: Watson, E.M. Mrs. (Elsie). Kirkland, WA, USA

R. 'Blue Boy x Susan'

Rhododendron Hybrid

R. 'Blue Boy' X R. 'Susan'

Hybridized By: Unknown

R. 'Blue Chip'

Rhododendron Hybrid

R. russatum X R. 'Blue Diamond'

Hybridized By: George A.F.. Hydon Nursery, Godalming, Surrey, England, 1966

R. 'Blue Crown'

Rhododendron Hybrid

R. 'Purple Splendour' X R. 'Blue Peter'

Hybridized By: Van de Ven K.. Olinda, Victoria, Australia, 1981

R. 'Blue Danube'

Rhododendron Hybrid

R. fortunei ssp discolor X R. 'Purple Splendour'

Hybridized By: Waterer, H. (Knaphill). Woking, Surrey (Knaphill), UK, 1958

R. 'Blue Danube'

Azalea Hybrid

R. 'Malvaticum' X R. kaempferi

Hybridized By: Van Hecke, A., 1965

R. 'Blue Dawn'

Rhododendron Hybrid

R. 'Susan' X R. 'Mrs Davies Evans'

Hybridized By: Johnson, A.P., 1972