Index

R. 'Sidestep' Rhododendron Hybrid ? X ? Hybridized By: Weston Nurseries More information
R. 'Sidney Herbert' Rhododendron Hybrid ? X ? Hybridized By: Waterer (Bagshot) More information
R. 'Sidonia' Azalea Hybrid ? X ? Hybridized By: van Geert, C. More information
R. 'Sidonia Group' Rhododendron Cultivar group R. 'Rose Perfection' X R. fortunei ssp fortunei Hybridized By: Aberconway, Lord More information
R. 'Siegetsu' Azalea Hybrid ? X ? Hybridized By: Japan More information
R. 'Siegfried' Azalea Hybrid ? X ? Hybridized By: Schulz, O. (head-gardener, Royal Porcelain Factory) More information
R. 'Sierra Beauty' Rhododendron Hybrid ? X ? Hybridized By: Lofthouse, J.G. More information
R. 'Sierra del Oro' Rhododendron Hybrid R. 'Crest' X R. lacteum Hybridized By: Lofthouse, J.G. More information and pictures
R. 'Sierra Glow' Azalea Hybrid ? X R. 'Hahn's Red' Hybridized By: Yavorsky, L. More information
R. 'Sierra Nevada' Azalea Hybrid ? X ? Hybridized By: ISRIA More information
R. 'Sierra Snow' Azalea Hybrid ? X ? Hybridized By: Roehrs, J. More information
R. 'Sierra Stars' Rhododendron Hybrid ? X ? Hybridized By: Lofthouse, J.G. More information
R. 'Sierra Sunrise' Rhododendron Hybrid R. 'Mrs Horace Fogg' X R. 'Point Defiance' Hybridized By: Lofthouse, J.G. More information and pictures
R. 'Sierra Sunset' Rhododendron Hybrid R. 'Sunup-Sundown' X R. 'Lem's Cameo' Hybridized By: Lofthouse, J.G. More information and pictures
R. 'Sierra Treasure' Rhododendron Hybrid R. 'Crest' X R. lacteum Hybridized By: Lofthouse, J.G. More information
R. 'Siesta' Rhododendron Hybrid R. 'Britannia' X R. degronianum ssp yakushimanum Hybridized By: Elliott, James A. More information
R. sigillatum Species Section: Tsutsusi More information
R. 'Sigismond Rucker' Azalea Hybrid R. 'Rachel von Varenhagen' X ? Hybridized By: Van Houtte, L. B. (Louis Benoit) More information
R. 'Sigismund Rucker' Rhododendron Hybrid ? X ? Hybridized By: Waterer, H. (Knaphill) More information and pictures
R. 'Sigmund Romberg' Rhododendron Hybrid ? X ? Hybridized By: Seabrook, Cecil S. More information
R. 'Signal' Azalea Hybrid ? X ? Hybridized By: Morrison, B.Y. More information
R. 'Signal' Rhododendron Hybrid ? X ? Hybridized By: Lancaster, Ben, F. More information
R. 'Signal Horn' Rhododendron Hybrid R. 'Atrosanguineum' X R. 'Goldsworth Yellow' Hybridized By: Nearing, G.G. More information
R. 'Signal Light' Azalea Hybrid ? X ? Hybridized By: Frisbie, L.F. More information
R. 'Signalfeuer' Rhododendron Hybrid ? X ? More information
R. 'Signalglühen' Azalea Hybrid ? X ? More information
R. 'Signor Lablanche' Rhododendron Hybrid ? X ? Hybridized By: Noble, C. More information
R. 'Signorina' Rhododendron Hybrid R. 'Kalamaika' X R. 'Perlina' Hybridized By: Hachmann, Hans More information
R. 'Sigrid' Rhododendron Hybrid ? X ? Hybridized By: Laxdall, S. Mrs More information
R. 'Siho' Azalea Hybrid ? X ? Hybridized By: Japan More information
R. sikangense var exquisitum Species Subgenus: Hymenanthes Section: Pontica Subsection: Maculifera More information and pictures
R. sikangense var sikangense Species Subgenus: Hymenanthes Section: Pontica Subsection: Maculifera More information
R. sikayotaisanense Species Subgenus: Tsutsusi Section: Tsutsusi More information
R. sikidera Natural Hybrid R. indicum X R. kaempferi More information
R. sikkimense Natural Hybrid R. thomsonii ssp thomsonii X R. arboreum ssp arboreum Subgenus: Hymenanthes Section: Pontica Subsection: Thomsonia More information and pictures
R. 'Silberfee' Rhododendron Hybrid R. 'Mrs Lindsay Smith' X R. degronianum ssp yakushimanum 'Hanano-ego' Hybridized By: Robeneck, H. More information
R. 'Silberglanz' Rhododendron Hybrid R. 'Humboldt' X R. degronianum ssp yakushimanum 'Koichiro Wada' Hybridized By: Hachmann, Hans More information and pictures
R. 'Silbermond' Rhododendron Hybrid ? X ? Hybridized By: Hesse, H. More information
R. 'Silberreif' Rhododendron Hybrid ? X ? More information
R. 'Silbervelours' Rhododendron Hybrid R. degronianum ssp yakushimanum 'Koichiro Wada' X R. pachysanthum Hybridized By: Hachmann, Hans More information and pictures
R. 'Silberwolke' Rhododendron Hybrid R. degronianum ssp yakushimanum 'Koichiro Wada' X R. 'Album Novum' Hybridized By: Hachmann, Hans More information and pictures
R. 'Silk Ribbon' Rhododendron Hybrid R. 'Anita Dunstan' X R. 'One Thousand Butterflies' Hybridized By: Barlup, Jim More information and pictures
R. 'Silk Road' Rhododendron Hybrid R. 'brachycarpum ssp tigerstedtii x Phipps Yellow' X R. 'Nelda Peach' Hybridized By: Anderson A.T. & S.A More information
R. 'Silkcap' Rhododendron Hybrid ? X ? More information
R. 'Silken Shimmer' Vireya Hybrid R. konori var konori X R. Doctor Hermann Sleumer More information
R. 'Siltcoos Sunrise' Rhododendron Hybrid R. 'Paprika Spiced' X R. 'Jezebel' Hybridized By: Cockeram, Eugene More information
R. 'Silver Anniversary' Azalea Hybrid R. 'Gretel' X ? Hybridized By: Taylor, G. More information and pictures
R. 'Silver Bear' Rhododendron Hybrid R. degronianum ssp yakushimanum X R. bureavii More information
R. 'Silver Cup' Azalea Hybrid ? X ? More information
R. 'Silver Dane' Rhododendron Hybrid R. degronianum ssp yakushimanum X R. pachysanthum Hybridized By: Hansen, Svend More information and pictures

Index

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R. 'Sidestep'

Rhododendron Hybrid

? X ?

R. 'Sidney Herbert'

Rhododendron Hybrid

? X ?

R. 'Sidonia'

Azalea Hybrid

? X ?

R. 'Sidonia Group'

Rhododendron Cultivar group

R. 'Rose Perfection' X R. fortunei ssp fortunei

R. 'Siegetsu'

Azalea Hybrid

? X ?

R. 'Siegfried'

Azalea Hybrid

? X ?

R. 'Sierra Beauty'

Rhododendron Hybrid

? X ?

R. 'Sierra del Oro'

Rhododendron Hybrid

R. 'Crest' X R. lacteum

R. 'Sierra Glow'

Azalea Hybrid

? X R. 'Hahn's Red'

R. 'Sierra Nevada'

Azalea Hybrid

? X ?

R. 'Sierra Snow'

Azalea Hybrid

? X ?

R. 'Sierra Stars'

Rhododendron Hybrid

? X ?

R. 'Sierra Sunrise'

Rhododendron Hybrid

R. 'Mrs Horace Fogg' X R. 'Point Defiance'

R. 'Sierra Sunset'

Rhododendron Hybrid

R. 'Sunup-Sundown' X R. 'Lem's Cameo'

R. 'Sierra Treasure'

Rhododendron Hybrid

R. 'Crest' X R. lacteum

R. 'Siesta'

Rhododendron Hybrid

R. 'Britannia' X R. degronianum ssp yakushimanum

R. sigillatum

Species

R. 'Sigismond Rucker'

Azalea Hybrid

R. 'Rachel von Varenhagen' X ?

R. 'Sigismund Rucker'

Rhododendron Hybrid

? X ?

R. 'Sigmund Romberg'

Rhododendron Hybrid

? X ?

R. 'Signal'

Azalea Hybrid

? X ?

R. 'Signal'

Rhododendron Hybrid

? X ?

R. 'Signal Horn'

Rhododendron Hybrid

R. 'Atrosanguineum' X R. 'Goldsworth Yellow'

R. 'Signal Light'

Azalea Hybrid

? X ?

R. 'Signalfeuer'

Rhododendron Hybrid

? X ?

R. 'Signalglühen'