Index

R. 'Yamato-no-hikari'

Azalea Hybrid

X

Hybridized By: Japan | no hybridiser registration, 1979

R. 'Yamayuri'

Azalea Hybrid

? X ?

Hybridized By: Nuccio's Nurseries | Altadena, California | USA, 1989

R. 'Yamina'

Rhododendron Hybrid

R. 'Letty Edwards Group' X R. fortunei ssp fortunei

Hybridized By: Teese A.J.. Monbulk, Voctoria, Australia, 1961

R. 'Yamina Goldie'

Azalea Hybrid

? X ?

Hybridized By: Unknown

R. 'Yanchart'

Rhododendron Hybrid

? X ?

Hybridized By: Ingram, C.. Benenden, Kent, England, 1935

R. yangmingshanense

Species

Subgenus: Tsutsusi
Section: Tsutsusi

R. 'Yankee Clipper'

Rhododendron Hybrid

R. 'Newport' X ?

Hybridized By: Delp Weldon E.. Harrisville, Pensylvania, USA, 1951

R. 'Yankee Clover'

Rhododendron Hybrid

R. 'Tony's Gift' X R. 'Maxhaem Salmon'

Hybridized By: Delp Weldon E.. Harrisville, Pensylvania, USA, 1976

R. 'Yankee Doodle'

Azalea Hybrid

? X ?

Hybridized By: Carlson's Gardens | (Bob & Janice Carlson), South Salem, New York | USA, 1937

R. yaogangxianense

Species

Subgenus: Rhododendron
Section: Rhododendron
Subsection: Maddenia

R. yaoshanicum

Species

Subgenus: Tsutsusi
Section: Tsutsusi

R. 'Yaquina'

Azalea Hybrid

R. 'Graciosum' X ?

Hybridized By: Lancaster, Ben, F. | Lackamas Gardens, Camas, Washington | USA, 1958

R. 'Yaquina'

Azalea Hybrid

R. 'Hugh Wormald' X R. 'Marion Merriman'

Hybridized By: Slonecker, H.J. | Milwaukie, Oregon | USA, 1958

R. 'Yashiro'

Azalea Hybrid

? X ?

Hybridized By: Ito, Ihei | Register from 1692 | Japan, 1692

R. 'Yashmak'

Rhododendron Hybrid

R. degronianum ssp yakushimanum X R. campylocarpum ssp campylocarpum

Hybridized By: Ingram, C.. Benenden, Kent, England, 1971

R. 'Yasmina'

Azalea Hybrid

R. 'Limona' X R. 'Marion Merriman'

Hybridized By: Hachmann, Hans | Barmstedt in Holstein | Germany, 1971

R. 'Yata-no-kagami'

Azalea Hybrid

? X ?

Hybridized By: Japan | no hybridiser registration, 1938

R. 'Yata-no-sai'

Azalea Hybrid

? X ?

Hybridized By: Japan | no hybridiser registration, 1975

R. 'Yates Irene'

Rhododendron Hybrid

R. 'catawbiense x Mars X Princess Elizabeth' X R. 'Big Savage'

Hybridized By: Yates, H.R.. Frostburg, Maryland,, USA, 1977

R. 'Yates No. 1'

Rhododendron Hybrid

R. ungernii X R. auriculatum

Hybridized By: Yates, H.R.. Frostburg, Maryland,, USA, 1972

R. 'Yates No. 2'

Rhododendron Hybrid

R. ungernii X R. auriculatum

Hybridized By: Yates, H.R.. Frostburg, Maryland,, USA, 1972

R. 'Yates' Albino'

Rhododendron Hybrid

R. catawbiense X R. 'Mars'

Hybridized By: Yates, H.R.. Frostburg, Maryland,, USA, 1959

R. 'Yates' Best'

Rhododendron Hybrid

R. 'Mrs H.R. Yates' X R. degronianum ssp yakushimanum 'Koichiro Wada'

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

R. 'Yates' Hazel'

Rhododendron Hybrid

R. 'Mrs Charles S Sargent' X R. 'Mount Siga'

Hybridized By: Yates, H.R.. Frostburg, Maryland,, USA, 1963

R. 'Yates' Monica'

Rhododendron Hybrid

R. 'Joe Kruson' X R. 'Red Pond'

Hybridized By: Yates, H.R.. Frostburg, Maryland,, USA, 1970

R. 'Yates' Purple'

Rhododendron Hybrid

? X R. 'Purple Splendour'

Hybridized By: Yates, H.R.. Frostburg, Maryland,, USA, 1965

R. 'Yates' Red'

Rhododendron Hybrid

R. 'Leah Yates' X R. 'Pink Twins'

Hybridized By: Yates, H.R.. Frostburg, Maryland,, USA, 1959

R. 'Yates' Second Best'

Rhododendron Hybrid

R. 'Mrs H.R. Yates' X R. degronianum ssp yakushimanum 'Koichiro Wada'

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

R. 'Yates' Treena'

Rhododendron Hybrid

? X ?

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

R. 'Yates' Velvet Charm'

Rhododendron Hybrid

R. 'Sunset Yates' X R. 'Pink Punch'

Hybridized By: Yates, H.R.. Frostburg, Maryland,, USA, 1968

R. 'Yates' Yellow Ribbons'

Rhododendron Hybrid

? X ?

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

R. 'Yatsu-hashi'

Azalea Hybrid

? X ?

Hybridized By: Ito, Ihei | Register from 1692 | Japan, 1692

R. 'Yatsu-hashi'

Azalea Hybrid

? X ?

Hybridized By: Japan | no hybridiser registration, 1929

R. 'Yatsubausa-no-ushi'

Azalea Hybrid

? X ?

Hybridized By: Japan | no hybridiser registration, 1979

R. 'Yatsubusa-seirin'

Azalea Hybrid

? X ?

Hybridized By: Japan | no hybridiser registration, 1979

R. 'Yatsubusa-ukigami'

Azalea Hybrid

? X ?

Hybridized By: Japan | no hybridiser registration, 1979

R. 'Yatton'

Rhododendron Hybrid

R. 'Goldsworth Yellow' X R. degronianum ssp yakushimanum

Hybridized By: Reese, W.A., 1978

R. 'Yaye-hiryu'

Azalea Hybrid

? X ?

Hybridized By: Japan | no hybridiser registration, 1918

R. 'Yayehime'

Azalea Hybrid

? X ?

Hybridized By: Japan | no hybridiser registration, 1920

R. 'Yayoi-no-hikari'

Azalea Hybrid

? X ?

Hybridized By: Japan | no hybridiser registration, 1979

R. 'Yayoi-no-tsuki'

Azalea Hybrid

X

Hybridized By: Japan | no hybridiser registration, 1987

R. 'Years of Peace'

Rhododendron Hybrid

R. 'Mrs Charles S Sargent' X R. 'Mrs Charles S Sargent'

Hybridized By: Mezitt, E.V.. Weston Nurseries, Hopkinton, Massachusetts, USA, 1959

R. yedoense var poukhanense

Species

Subgenus: Tsutsusi
Section: Tsutsusi

R. 'yedoense var poukhanense x Hexe'

Azalea Hybrid

R. yedoense var poukhanense X R. 'Hexe'

Hybridized By: No hybridiser registered

R. 'yedoense var poukhanense x kaempferi'

Azalea Hybrid

R. yedoense var poukhanense X R. kaempferi

Hybridized By: No hybridiser registered

R. yedoense var yedoense

Species

Subgenus: Tsutsusi
Section: Tsutsusi

R. yelliotii

Species

Subgenus: Rhododendron
Section: Vireya
Subsection: Euvireya

R. 'Yellow Baby'

Rhododendron Hybrid

? X ?

Hybridized By: Fuller, H. & S., 1985

R. 'Yellow Ball'

Azalea Hybrid

? X ?

Hybridized By: Yeates, J.S., 1985

R. 'Yellow Balloon'

Rhododendron Hybrid

? X ?

Hybridized By: , 2010

R. 'Yellow Beauty'

Azalea Hybrid

? X ?

Hybridized By: No hybridiser registered, 1980