Index

R. 'Pennsy'

Rhododendron Hybrid

R. 'Phipps Yellow x Pacific Gold' X R. 'Janet Blair'

Hybridized By: Rosenthal, J.. Jamaica, NY, USA, 2002

R. 'Pennsylvania'

Azalea Hybrid

R. prunifolium X R. viscosum

Hybridized By: Mezitt, E.V. | Weston Nurseries, Hopkinton, Massachusetts | USA, 1963

R. 'Penny'

Rhododendron Hybrid

R. 'Sarita Loder Group' X R. 'Idealist Group'

Hybridized By: James Delbert W.. Eugene, Oregon, USA, 1958

R. 'Pennywhistle'

Vireya Hybrid

R. macgregoriae X R. bagobonum

Hybridized By: Rouse, J.L.. Toorak, Victoria, Australia, 1986

R. 'Penrice'

Vireya Hybrid

R. aurigeranum ssp aurigeranum X

Hybridized By: Unknown

R. 'Penrose'

Vireya Hybrid

R. viriosum X R. aurigeranum ssp aurigeranum

Hybridized By: Unknown

R. pensylvanicum

Natural Hybrid

R. atlanticum X R. periclymenoides

R. pentaphyllum

Species

Subgenus: Pentanthera
Section: Sciadorhodion

R. 'Penvose'

Rhododendron Hybrid

R. tephropeplum X R. cinnabarinum ssp xanthocodon Concatenans Group

Hybridized By: Williams, John Charles. Caerhays, Cornwall, England, 1930

R. 'Peppermint Twist'

Rhododendron Hybrid

R. hyperythrum X R. 'Princess Elizabeth'

Hybridized By: Thornton, J.T., 1992

R. 'Pepperpot'

Rhododendron Hybrid

R. 'Goldbug' X ?

Hybridized By: Elliott, James A.. Astoria, Oregon, USA, 1966

R. 'Peppina'

Azalea Hybrid

R. 'Königstein' X R. 'Ledikanense'

Hybridized By: Hachmann, Holger, 1991

R. 'Peppone'

Rhododendron Hybrid

R. 'Obergärtner Robeneck' X R. anthosphaerum

Hybridized By: Hachmann, Hans. Barmstedt in Holstein, Germany, 1988

R. 'Peppy'

Rhododendron Hybrid

R. 'Hotei' X R. 'Colonel Coen'

Hybridized By: Hutchison, L.A.. Mosgiel, Otago, New Zealand, 1987

R. 'Pera Group'

Rhododendron Hybrid

R. 'Ethel Group' X R. 'Penjerrick Group'

Hybridized By: Aberconway, Lord. Bodnant, Tal-y-Cafn, Wales, 1935

R. perakense

Species

Subgenus: Rhododendron
Section: Discovireya

R. 'Percy Wiseman'

Rhododendron Hybrid

R. degronianum ssp yakushimanum X R. 'Fabia Tangerine'

Hybridized By: Waterer (Bagshot). Surrey, England, 1969

R. 'Peregrine Group'

Rhododendron Cultivar group

? X ?

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

R. peregrinum

Species

Subgenus: Hymenanthes
Section: Pontica

R. 'Perfect Lady'

Rhododendron Hybrid

R. degronianum ssp yakushimanum X R. dichroanthum ssp scyphocalyx

Hybridized By: Hanger, F.E.W.. RHS Garden, Wisley, Surrey, England, 1994

R. 'Perfectly Pink'

Rhododendron Hybrid

R. 'Babylon' X ?

Hybridized By: Greer, Harold E.. Eugene, Oregon, USA, 1988

R. Perhaps

Natural Hybrid

R. occidentale X R. macrophyllum

Subgenus: Pentanthera
Section: Pentanthera
Subsection: Pentanthera

R. 'Pericat Pink'

Azalea Hybrid

? X ?

Hybridized By: Unknown

R. periclymenoides

Species

Subgenus: Pentanthera
Section: Pentanthera
Subsection: Pentanthera

R. periclymenoides 'Album'

Azalea Species Selection

Selected By: Loddiges, C. & Sons , Hackney, London , England, 1823

Subgenus: Pentanthera
Section: Pentanthera
Subsection: Pentanthera

R. periclymenoides 'Baby's Bottom'

Azalea Species Selection

Selected By: Carlson's Gardens , (Bob & Janice Carlson), South Salem, New York , USA, 1985

Subgenus: Pentanthera
Section: Pentanthera
Subsection: Pentanthera

R. periclymenoides 'Doughorean'

Azalea Species Selection

Selected By: Gambril, 1947

Subgenus: Pentanthera
Section: Pentanthera
Subsection: Pentanthera

R. periclymenoides f album

Species

R. periclymenoides 'Little's Deep Pink'

Azalea Species Selection

Selected By: Little, P.L. , Piping Tree Gardens, Beaverdam, Virgina , USA, 1996

Subgenus: Pentanthera
Section: Pentanthera
Subsection: Pentanthera

R. periclymenoides 'Little's Fancy Shell'

Azalea Species Selection

Selected By: Little, P.L. , Piping Tree Gardens, Beaverdam, Virgina , USA, 1996

Subgenus: Pentanthera
Section: Pentanthera
Subsection: Pentanthera

R. periclymenoides 'Little's Frosted Purple'

Azalea Species Selection

Selected By: Little, P.L. , Piping Tree Gardens, Beaverdam, Virgina , USA, 1996

Subgenus: Pentanthera
Section: Pentanthera
Subsection: Pentanthera

R. periclymenoides 'Little's Giant Spice'

Azalea Species Selection

Selected By: Little, P.L. , Piping Tree Gardens, Beaverdam, Virgina , USA, 1995

Subgenus: Pentanthera
Section: Pentanthera
Subsection: Pentanthera

R. periclymenoides 'Little's Sugarplum'

Azalea Species Selection

Selected By: Little, P.L. , Piping Tree Gardens, Beaverdam, Virgina , USA, 1985

Subgenus: Pentanthera
Section: Pentanthera
Subsection: Pentanthera

R. periclymenoides 'Paxton Blue'

Azalea Species Selection

Selected By: unknown, 1987

Subgenus: Pentanthera
Section: Pentanthera
Subsection: Pentanthera

R. periclymenoides var alba

Species

R. 'Peridot'

Rhododendron Hybrid

R. 'Hotei' X R. 'Dianta'

Hybridized By: Stockman, M.. Port Angeles, Washington, USA, 1989

R. 'Periwinkle'

Vireya Hybrid

R. bagobonum X R. rubineiflorum

Hybridized By: Unknown

R. 'Perla del Verbano'

Azalea Hybrid

? X ?

Hybridized By: Unknown

R. 'Perla Rosa'

Rhododendron Hybrid

R. mucronatum var mucronatum X R. ciliatum

Hybridized By: Boskoop. Research Center fo Arboreus Crops, Netherlands, 1982

R. 'Perle d'Ambre'

Azalea Hybrid

? X ?

Hybridized By: Unknown

R. 'Perle de Noisy'

Azalea Hybrid

? X ?

Hybridized By: Unknown

R. 'Perle de Swynaerde'

Azalea Hybrid

? X ?

Hybridized By: Paelinck Bros, 1935

R. 'Perlina'

Rhododendron Hybrid

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

Hybridized By: Hachmann, Hans. Barmstedt in Holstein, Germany, 1969

R. perplexum

Species

Subgenus: Rhododendron
Section: Vireya
Subsection: Euvireya

R. 'Persephone Group'

Rhododendron Cultivar group

R. floccigerum X R. forrestii Repens Group

Hybridized By: Aberconway, Lord. Bodnant, Tal-y-Cafn, Wales, 1937

R. 'Perseus Group'

Rhododendron Cultivar group

R. 'Jacquetta Group' X R. 'Vanessa Group'

Hybridized By: Aberconway, Lord. Bodnant, Tal-y-Cafn, Wales, 1935

R. 'Perseverance'

Rhododendron Hybrid

? X ?

Hybridized By: Adams-Acton, G.M. London, England

R. 'Persia'

Rhododendron Hybrid

R. 'Mrs Furnivall' X R. catawbiense

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

R. 'Persil'

Azalea Hybrid

? X ?

Hybridized By: Waterer, H. (Knaphill) | Woking, Surrey (Knaphill) | UK, 1926

R. 'Persolutum'

Rhododendron Hybrid

? X ?

Hybridized By: Knight & Perry. (J. Knight & T. A. Perry), Exotic Nursery, Chelsea, London, England, 1850

R. 'Personality'

Vireya Hybrid

X R. konori var konori

Hybridized By: Unknown