Index

R. 'Pippa'

Azalea Hybrid

? X ?

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

R. 'Pippin'

Azalea Hybrid

R. 'Osakazuki' X R. 'Kagaribi'

Hybridized By: Morrison, B.Y. | Pass Christian, Mississippi | USA, 1958

R. 'Pipsqueak'

Rhododendron Hybrid

R. 'Delp's Small Fry' X R. 'Hi Tech'

Hybridized By: Delp Weldon E.. Harrisville, Pensylvania, USA, 1985

R. 'Piquante'

Rhododendron Hybrid

R. valentinianum X R. leucaspis

Hybridized By: Harrison, E.G.W.W.. Bodmin, Cornwall, England, 1961

R. 'Pirate Group'

Rhododendron Cultivar group

? X ?

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

R. 'Pirate's Booty'

Azalea Hybrid

? X ?

Hybridized By: Aromi, E.J | Mobile, Alabama | USA

R. 'Pirate's Pink'

Azalea Hybrid

? X ?

Hybridized By: Aromi, E.J | Mobile, Alabama | USA

R. 'Pirol'

Rhododendron Hybrid

? X ?

Hybridized By: Nagel, W. (Walter). Bretten, Baden, Germany

R. 'Pirouette'

Rhododendron Hybrid

R. degronianum ssp yakushimanum 'Koichiro Wada' X R. 'Pink Petticoats'

Hybridized By: Lofthouse, J.G.. Vancouver, British Columbia, Canada, 1973

R. 'Pissaro'

Azalea Hybrid

? X ?

Hybridized By: Rothschild, Edmund Leopold de | Southampton | UK

R. 'Pitacca'

Rhododendron Hybrid

? X ?

Hybridized By: Parco Burcina. Pollone, Biella, Italy

R. 'Pixie'

Azalea Hybrid

? X ?

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

R. 'Pixie Belle'

Rhododendron Hybrid

? X ?

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

R. 'Pixie Group'

Rhododendron Cultivar group

R. forrestii Repens Group X R. dichroanthum ssp apodectum

Hybridized By: Aberconway, Lord. Bodnant, Tal-y-Cafn, Wales, 1932

R. 'PJM Compacta'

Rhododendron Hybrid

R. minus Carolinianum Group X R. dauricum Sempervirens Group

Hybridized By: Mezitt, E.V.. Weston Nurseries, Hopkinton, Massachusetts, USA, 1939

R. 'PJM Elite'

Rhododendron Hybrid

R. minus Carolinianum Group X R. dauricum Sempervirens Group

Hybridized By: Mezitt, E.V.. Weston Nurseries, Hopkinton, Massachusetts, USA, 1939

R. 'PJM Group'

Rhododendron Cultivar group

R. minus Carolinianum Group X R. dauricum Sempervirens Group

Hybridized By: Mezitt, E.V.. Weston Nurseries, Hopkinton, Massachusetts, USA, 1939

R. 'PJM Group x mucronulatum'

Rhododendron Hybrid

X R. mucronulatum var mucronulatum

Hybridized By: No hybridiser registered

R. 'PJM Regal'

Rhododendron Hybrid

R. minus Carolinianum Group X R. dauricum Sempervirens Group

Hybridized By: Mezitt, E.V.. Weston Nurseries, Hopkinton, Massachusetts, USA, 1939

R. 'PJM Victor'

Rhododendron Hybrid

R. minus Carolinianum Group X R. dauricum Sempervirens Group

Hybridized By: Mezitt, E.V.. Weston Nurseries, Hopkinton, Massachusetts, USA, 1939

R. 'PJM-K'

Rhododendron Hybrid

? X ?

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

R. 'Placid'

Azalea Hybrid

? X ?

Hybridized By: USDA, Department of Agriculture | Beltsville, Maryland | USA

R. 'Plaineye'

Rhododendron Hybrid

? X ?

Hybridized By: Harrison, E.G.W.W.. Bodmin, Cornwall, England

R. planecostatum

Species

Subgenus: Rhododendron
Section: Vireya
Subsection: Euvireya

R. planetum

Natural Hybrid

R. sutchuenense X R. oreodoxa var oreodoxa

R. 'Planters Punch'

Rhododendron Hybrid

R. 'Frilled Cream' X ?

Hybridized By: Ring, T.L.. Bellaire, Ohio, USA, 1977

R. 'Planting Fields'

Azalea Hybrid

? X ?

Hybridized By: Bobbink & Atkins | East Rutherford, New Jersey | USA, 1930

R. 'Plarc'hig Skaer'

Rhododendron Hybrid

R. 'Kluis Sensation' X R. 'Karen Triplett'

Hybridized By: Le Duigou, L., 2000

R. 'Platinum Ice'

Rhododendron Hybrid

? X ?

Hybridized By: Jury, M.

R. 'Platinum Pearl'

Rhododendron Hybrid

R. 'Trude Webster' X R. fortunei ssp discolor

Hybridized By: Greer, Harold E.. Eugene, Oregon, USA, 1983

R. 'Platinum Pink'

Azalea Hybrid

? X ?

Hybridized By: Aromi, E.J | Mobile, Alabama | USA

R. 'Plato'

Azalea Hybrid

? X ?

Hybridized By: Standish & Noble | Bagshot, Surrey | England, 1848

R. platypodum

Species

Subgenus: Hymenanthes
Section: Pontica
Subsection: Fortunea

R. 'Pleasant Companion'

Vireya Hybrid

? X ?

Hybridized By: Unknown

R. 'Pleasant White'

Azalea Hybrid

R. 'Kathy Ann' X R. 'Clara Marie'

Hybridized By: Girard, P.E. | Geneva, Ohio | USA, 1966

R. 'Pleiades Group'

Rhododendron Cultivar group

? X ?

Hybridized By: Reuthe, G. Ltd. Ightham, Kent, England

R. pleianthum

Species

Subgenus: Rhododendron
Section: Vireya
Subsection: Euvireya

R. pleistanthum

Species

Subgenus: Rhododendron
Section: Rhododendron
Subsection: Triflora

R. 'Plenty Pink'

Rhododendron Hybrid

R. johnstoneanum X ?

Hybridized By: Sullivan, N.. Burnie, Tasmania, Australia, 1980

R. 'Plover'

Rhododendron Hybrid

R. dendrocharis X R. edgeworthii

Hybridized By: Cox, E.H.M.

R. 'Plum Beautiful'

Rhododendron Hybrid

R. 'Purple Splendour' X R. 'Arthur Bedford'

Hybridized By: Greer, Harold E.. Eugene, Oregon, USA, 1983

R. 'Plum Beauty'

Rhododendron Hybrid

R. 'Vivacious' X R. 'Old Port'

Hybridized By: Smith, A.W.. Niagara Falls, Ontario, Canada

R. 'Plum Brandy'

Rhododendron Hybrid

? X ?

Hybridized By: UK, No hybridizer registered

R. 'Plum Crazy'

Azalea Hybrid

? X ?

Hybridized By: Monrovia Nursery

R. 'Plum High'

Rhododendron Hybrid

R. 'Fancy x yakushimanum' X R. 'Frank Galsworthy'

Hybridized By: Barlup, Jim. Bellevue, USA, 1989

R. 'Plum High x Jonathan Shaw No. 2'

Rhododendron Hybrid

R. 'Plum High' X R. 'Jonathan Shaw'

Hybridized By: Unknown

R. 'Plum Magic'

Rhododendron Hybrid

R. 'Plum High' X R. 'Violetta's Song'

Hybridized By: Barlup, Jim. Bellevue, USA, 1999

R. 'Plum Passion'

Rhododendron Hybrid

R. 'Plum High' X R. 'Jonathan Shaw'

Hybridized By: Barlup, Jim. Bellevue, USA, 1997

R. 'Plum Satin'

Rhododendron Hybrid

R. 'Jonathan Shaw' X R. 'Frosted Plum'

Hybridized By: Barlup, Jim. Bellevue, USA, 1997

R. 'Plum Wild'

Rhododendron Hybrid

R. 'Jonathan Shaw' X R. 'Plum High'

Hybridized By: Barlup, Jim. Bellevue, USA, 2000

R. 'Plumb Perfect'

Rhododendron Hybrid

R. 'Julia Grothaus' X R. 'Purple Splendour'

Hybridized By: Vea, J.G., 1977