Index

R. 'Big Band'

Rhododendron Hybrid

R. catawbiense 'Catalgla' X R. 'Mrs G. W. Leak'

Hybridized By: Looye, Jack. Niagara on the Lake, Ontario, Canada, 1990

R. 'Big Ben'

Rhododendron Hybrid

? X

Hybridized By: Unknown

R. 'Big Bucks'

Rhododendron Hybrid

R. 'Source Bank' X R. 'Delp's White Dove'

Hybridized By: Delp Weldon E.. Harrisville, Pensylvania, USA, 1992

R. 'Big Business'

Rhododendron Hybrid

R. 'Abe Arnott' X R. 'White Blue Peter'

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

R. 'Big Charlie'

Rhododendron Hybrid

? X ?

Hybridized By: Tolstead, W.L.. Davis and Elkins College, Elkins, WV, USA

R. 'Big Chief'

Azalea Hybrid

? X ?

Hybridized By: Holmsomback, O.

R. 'Big Daddy'

Rhododendron Hybrid

? X ?

Hybridized By: Schram, B.

R. 'Big Deal'

Rhododendron Hybrid

? X ?

Hybridized By: Mezitt, E.V.. Weston Nurseries, Hopkinton, Massachusetts, USA, 1971

R. 'Big Dipper'

Rhododendron Hybrid

? X ?

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

R. 'Big Dome'

Rhododendron Hybrid

? X ?

Hybridized By: Consolini, A.. Heritage Plantation, 1991

R. 'Big Foot'

Rhododendron Hybrid

R. 'Cotton Candy' X R. decorum ssp diaprepes 'Gargantua'

Hybridized By: Smith, C (Clint). Sumner, Washington, USA, 1984

R. 'Big Frill'

Rhododendron Hybrid

? X ?

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

R. 'Big Joe'

Azalea Hybrid

R. kaempferi X R. yedoense var poukhanense

Hybridized By: Gable, J.B. | Stewartstown, Pennsylvania | USA, 1930

R. 'Big Punkin'

Azalea Hybrid

? X ?

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

R. 'Big Sam'

Rhododendron Hybrid

? X ?

Hybridized By: Unknown

R. 'Big Savage'

Rhododendron Hybrid

R. 'Catalgla x fortunei' X R. 'Cadis'

Hybridized By: Yates, H.R.. Frostburg, Maryland,, USA, 1962

R. 'Big Six'

Rhododendron Hybrid

? X ?

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

R. 'Big Smile'

Rhododendron Hybrid

R. 'Melidioso' X R. 'Rotgold'

Hybridized By: Huisman, T. Nijensleek, Netherlands

R. 'Big Softie'

Vireya Hybrid

X R. leucogigas

Hybridized By: Unknown

R. 'Big-O'

Rhododendron Hybrid

R. catawbiense 'Catalgla' X R. 'Pink Twins'

Hybridized By: Delp Weldon E.. Harrisville, Pensylvania, USA, 1974

R. 'Biggi Dixon'

Rhododendron Hybrid

? X ?

Hybridized By: Dixon, G.

R. bijiangense

Species

Subgenus: Rhododendron
Section: Rhododendron
Subsection: Maddenia

R. 'Bijo'

Azalea Hybrid

? X ?

Hybridized By: Unknown

R. 'Bijou des Amateurs'

Azalea Hybrid

? X ?

Hybridized By: Baumann, J. | Ghent | Belgium, 1860

R. 'Bikini Island'

Rhododendron Hybrid

R. 'Scarlet Blast' X R. 'catawbiense x yakushimanum X Fanfare x Gertrud Schäle'

Hybridized By: Leach, Dr. David G.. North Madison, Ohio, USA, 1977

R. 'Bilderdijk'

Rhododendron Hybrid

? X ?

Hybridized By: de Cock, L., 1868

R. 'Bill Dale'

Rhododendron Hybrid

R. degronianum ssp yakushimanum X R. strigillosum

Hybridized By: Larson, H.L.. Tacoma, Washington, USA, 1976

R. 'Bill Fee'

Rhododendron Hybrid

R. 'arboreum x Elizabeth Group X arboreum' X R. 'Red Majesty'

Hybridized By: Moyles, E.W.. Oakland, California, USA, 1988

R. 'Bill Massey'

Rhododendron Hybrid

R. ciliatum 'Bergie' X R. nuttallii

Hybridized By: Vaerlen, B.. Camp Meeker, California, USA, 1963

R. 'Bill Moynier'

Vireya Hybrid

X R. 'macgregoriae x aurigeranum'

Hybridized By: Moynier, W.A., 1997

R. 'Bill Sullivan'

Rhododendron Hybrid

? X ?

Hybridized By: Manenica, Mrs A.. Aberdeen, Washington, USA

R. 'Bill's Legacy'

Rhododendron Hybrid

R. wardii var wardii X ?

Hybridized By: Dale, W.A.. Sidney, BC, Canada, 1995

R. 'Billy Bear'

Rhododendron Hybrid

? X ?

Hybridized By: Fetterhoff, W.M.. Gibsonia, Pennsylvania, USA

R. 'Billy Budd'

Rhododendron Hybrid

R. 'May Day Group' X R. elliottii

Hybridized By: Hanger, F.E.W.. RHS Garden, Wisley, Surrey, England, 1947

R. 'Billy Lap'

Rhododendron Hybrid

? X ?

Hybridized By: Tolstead, W.L.. Davis and Elkins College, Elkins, WV, USA

R. 'Billy Wilder'

Rhododendron Hybrid

R. 'Goldsworth Orange' X R. 'Inca Gold x yakushimanum X Catalgla x dichroanthum'

Hybridized By: MacMullan, D. (Dennis). Hamburg, Pennsylvania, USA, 1983

R. 'Biloxi Blues'

Rhododendron Hybrid

? X ?

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

R. 'Birat Red'

Vireya Hybrid

? X ?

Hybridized By: Cruttwell, N.E.G.. Goroka, Papua New Guinea, 1978

R. 'Birdie Mae'

Azalea Hybrid

? X ?

Hybridized By: Clagett, W.L. (Buck) | USA | Derwood, Maryland, 1996

R. 'Biruta'

Rhododendron Hybrid

R. 'Nova Zembla' X R. 'Panenka'

Hybridized By: Kondratovičs, Rihard. Riga, Latvia, 1985

R. 'Biscuit Box'

Rhododendron Hybrid

R. fortunei ssp discolor X R. elliottii

Hybridized By: Hanger, F.E.W.. RHS Garden, Wisley, Surrey, England, 1950

R. 'Biskra'

Rhododendron Hybrid

R. cinnabarinum ssp cinnabarinum Roylei Group X R. ambiguum

Hybridized By: Rothschild, L. de. Founder of Exbury Gardens, UK, 1934

R. 'Biskra x cinnabarinum ssp xanthocodon'

Rhododendron Hybrid

R. 'Biskra' X R. cinnabarinum ssp xanthocodon

Hybridized By: Birck, Jens. Kastrup, Denmark

R. 'Bismarck'

Rhododendron Hybrid

? X R. 'Everestianum'

Hybridized By: Seidel, T.J.. Dresden, Germany, 1891

R. 'Bisque'

Rhododendron Hybrid

R. 'Rio' X R. 'Tan'

Hybridized By: Ahern, T. (Tom). Bethlehem, PA, USA, 1996

R. 'Bitter Lemon'

Rhododendron Hybrid

R. 'Diane' X R. 'Gladys Rose'

Hybridized By: Waterer (Bagshot). Surrey, England, 1950

R. bivelatum

Species

Subgenus: Rhododendron
Section: Rhododendron
Subsection: Triflora

R. 'Bixby'

Azalea Hybrid

R. 'Vuyk's Scarlet' X R. yedoense var poukhanense

Hybridized By: Mezitt, E.V. | Weston Nurseries, Hopkinton, Massachusetts | USA, 1988

R. 'Blaauw's Pink'

Azalea Hybrid

? X ?

Hybridized By: Blaauw & Co. | Boskoop | Netherlands, 1953

R. 'Black Adder'

Rhododendron Hybrid

R. 'Warlock' X R. 'Warlock'

Hybridized By: Newcomb,L.L.. Snohomish, Washington, USA, 1985

R. 'Black Beauty'

Rhododendron Hybrid

? X ?

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