Hybridizer Profile

R. 'Anna H. Hall'

Rhododendron Hybrid

R. catawbiense X R. degronianum ssp yakushimanum

Hybridized By: Leach, Dr. David G.. North Madison, Ohio, USA, 1952

R. 'Applause'

Rhododendron Hybrid

R. catawbiense 'Catalgla' X R. 'Adriaan Koster x williamsianum'

Hybridized By: Leach, Dr. David G.. North Madison, Ohio, USA, 1958

R. 'Argentina'

Rhododendron Hybrid

R. 'catawbiense x yakushimanum' X R. 'Fanfare x Gertrud Schäle Group'

Hybridized By: Leach, Dr. David G.. North Madison, Ohio, USA, 1966

R. 'Atlantis'

Rhododendron Hybrid

R. catawbiense X R. 'dichroanthum X griffithianum x auriculatum'

Hybridized By: Leach, Dr. David G.. North Madison, Ohio, USA, 1952

R. 'Bali'

Rhododendron Hybrid

R. catawbiense X R. 'neriiflorum x dichroanthum X fortunei discolor'

Hybridized By: Leach, Dr. David G.. North Madison, Ohio, USA, 1952

R. 'Ballad'

Rhododendron Hybrid

? X R. 'America'

Hybridized By: Leach, Dr. David G.. North Madison, Ohio, USA, 1972

R. 'Bangkok'

Rhododendron Hybrid

? X ?

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

R. 'Betty Breene'

Rhododendron Hybrid

? X ?

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

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. 'Blaze'

Rhododendron Hybrid

? X ?

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

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. 'Bravo!'

Rhododendron Hybrid

R. catawbiense X R. 'fortunei X arboreum x griffithianum'

Hybridized By: Leach, Dr. David G.. North Madison, Ohio, USA, 1953

R. 'Bristol'

Rhododendron Hybrid

R. degronianum ssp yakushimanum 'Pink Parasol' X R. 'Party Pink'

Hybridized By: Leach, Dr. David G.. North Madison, Ohio, USA, 1968

R. 'Brittany'

Rhododendron Hybrid

R. 'Bowie' X R. keiskei

Hybridized By: Leach, Dr. David G.. North Madison, Ohio, USA, 1974

R. 'Cairo'

Rhododendron Hybrid

R. 'Catalgla x fortunei' X R. 'Eidam x williamsianum'

Hybridized By: Leach, Dr. David G.. North Madison, Ohio, USA, 1958

R. 'Calcutta'

Rhododendron Hybrid

R. 'dichroanthum ssp scyphocalyx x kyawii' X R. catawbiense 'Catalgla'

Hybridized By: Leach, Dr. David G.. North Madison, Ohio, USA, 1972

R. calendulaceum 'Colossus'

Rhododendron Species Selection

Selected By: Leach, Dr. David G. , North Madison, Ohio , USA, 1953

Subgenus: Pentanthera
Section: Pentanthera
Subsection: Pentanthera

R. 'Canary Islands'

Rhododendron Hybrid

? X ?

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

R. 'Capistrano'

Rhododendron Hybrid

R. 'Hindustan' X R. 'catawbiense X fortunei ssp discolor x Fabia Group X Russell Harmon x Goldsworth Orange X Golden Gala'

Hybridized By: Leach, Dr. David G.. North Madison, Ohio, USA, 1981

R. 'Casanova'

Rhododendron Hybrid

R. 'Newburyport Belle' X R. 'Good Hope'

Hybridized By: Leach, Dr. David G.. North Madison, Ohio, USA, 1968

R. 'Catalina'

Rhododendron Hybrid

? X ?

Hybridized By: Leach, Dr. David G.. North Madison, Ohio, USA, 1967

R. 'Coloratura'

Azalea Hybrid

R. cumberlandense X R. arborescens

Hybridized By: Leach, Dr. David G. | North Madison, Ohio | USA, 1961

R. 'Colossus'

Azalea Hybrid

? X ?

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

R. 'Congo'

Rhododendron Hybrid

R. catawbiense X R. 'Goldfort Group'

Hybridized By: Leach, Dr. David G.. North Madison, Ohio, USA, 1952

R. cumberlandense 'Scarlet Salute'

Azalea Species Selection

Selected By: Leach, Dr. David G. , North Madison, Ohio , USA, 1962

Subgenus: Pentanthera
Section: Pentanthera
Subsection: Pentanthera

R. 'Cyprus'

Rhododendron Hybrid

R. 'Mrs Furnivall' X R. catawbiense

Hybridized By: Leach, Dr. David G.. North Madison, Ohio, USA, 1953

R. degronianum ssp yakushimanum 'Mist Maiden'

Rhododendron Species Selection

Selected By: Leach, Dr. David G. , North Madison, Ohio , USA, 1958

Subgenus: Hymenanthes
Section: Pontica
Subsection: Pontica

R. degronianum ssp yakushimanum 'Pink Parasol'

Rhododendron Species Selection

Selected By: Leach, Dr. David G. , North Madison, Ohio , USA, 1968

Subgenus: Hymenanthes
Section: Pontica
Subsection: Pontica

R. 'Dolly Madison'

Rhododendron Hybrid

R. catawbiense X R. 'fortunei X arboreum x griffithianum'

Hybridized By: Leach, Dr. David G.. North Madison, Ohio, USA, 1950

R. 'Duet'

Rhododendron Hybrid

? X ?

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

R. 'Fiji'

Rhododendron Hybrid

? X ?

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

R. 'Finlandia'

Rhododendron Hybrid

R. catawbiense 'Catalgla' X R. 'Adriaan Koster x williamsianum'

Hybridized By: Leach, Dr. David G.. North Madison, Ohio, USA, 1958

R. 'Flamenco'

Rhododendron Hybrid

R. 'Fanfare' X R. 'Gertrud Schäle'

Hybridized By: Leach, Dr. David G.. North Madison, Ohio, USA, 1956

R. 'Golden Gala'

Rhododendron Hybrid

R. 'Great Lakes' X R. 'Good Hope'

Hybridized By: Leach, Dr. David G.. North Madison, Ohio, USA, 1968

R. 'Good Hope'

Rhododendron Hybrid

R. catawbiense X R. wardii var wardii

Hybridized By: Leach, Dr. David G.. North Madison, Ohio, USA, 1955

R. 'Great Lakes'

Rhododendron Hybrid

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

Hybridized By: Leach, Dr. David G.. North Madison, Ohio, USA, 1960

R. 'Hawaii'

Rhododendron Hybrid

? X ?

Hybridized By: Leach, Dr. David G.. North Madison, Ohio, USA, 1967

R. 'Hindustan'

Rhododendron Hybrid

R. 'maximum x Goldsworth Orange' X R. 'America x Gertrud Schäle Group'

Hybridized By: Leach, Dr. David G.. North Madison, Ohio, USA, 1967

R. 'Holden's Solar Flare'

Rhododendron Hybrid

? X ?

Hybridized By: Leach, Dr. David G.. North Madison, Ohio, USA, 1973

R. 'Holden's Spring Herald'

Rhododendron Hybrid

R. catawbiense 'Catalgla' X R. rex ssp fictolacteum

Hybridized By: Leach, Dr. David G.. North Madison, Ohio, USA, 1975

R. 'Hong Kong'

Rhododendron Hybrid

R. catawbiense X R. 'Crest'

Hybridized By: Leach, Dr. David G.. North Madison, Ohio, USA, 1956

R. 'Ivory Coast'

Rhododendron Hybrid

R. keiskei X R. dauricum 'Arctic Pearl'

Hybridized By: Leach, Dr. David G.. North Madison, Ohio, USA, 1974

R. 'Ivory Tower'

Rhododendron Hybrid

? X ?

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

R. 'Janet Blair'

Rhododendron Hybrid

? X ?

Hybridized By: Leach, Dr. David G.. North Madison, Ohio, USA, 1960

R. 'Java'

Rhododendron Hybrid

R. 'Mars' X R. 'Mars x catawbiense'

Hybridized By: Leach, Dr. David G.. North Madison, Ohio, USA, 1958

R. 'Jericho'

Rhododendron Hybrid

R. keiskei X R. minus Carolinianum Group 'Epoch'

Hybridized By: Leach, Dr. David G.. North Madison, Ohio, USA, 1976

R. 'July Jester'

Azalea Hybrid

R. prunifolium 'S.D. Coleman' X R. cumberlandense 'Scarlet Salute'

Hybridized By: Leach, Dr. David G. | North Madison, Ohio | USA, 1961

R. 'July Jewel'

Azalea Hybrid

? X ?

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

R. 'July Jingle'

Azalea Hybrid

R. prunifolium 'S.D. Coleman' X R. arborescens

Hybridized By: Leach, Dr. David G. | North Madison, Ohio | USA, 1961

R. 'July Joy'

Azalea Hybrid

R. prunifolium X R. arborescens

Hybridized By: Leach, Dr. David G. | North Madison, Ohio | USA, 1961

R. 'July Jubilation'

Azalea Hybrid

? X ?

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