• Rhododendron 'Alfred' (Alpenrose 'Alfred')
• Rhododendron 'Azurro' (Alpenrose 'Azurro')
• Rhododendron 'Bellini' (Alpenrose 'Bellini')
• Rhododendron 'Berliner Liebe' (Alpenrose 'Berliner Liebe')
• Rhododendron 'Bernstein' (Alpenrose 'Bernstein')
• Rhododendron 'Blinklicht' -R- (Alpenrose 'Blinklicht' -R-)
• Rhododendron 'Blue Peter' (Alpenrose 'Blue Peter')
• Rhododendron 'Brasilia' (Alpenrose 'Brasilia')
• Rhododendron 'Brigitte' (Alpenrose 'Brigitte')
• Rhododendron 'Catawbiense Boursault' (Alpenrose 'Catawbiense Boursault')
• Rhododendron 'Catawbiense Grandiflorum' (Alpenrose 'Catawbiense Grandiflorum')
• Rhododendron 'Catharine van Tol' (Alpenrose 'Catharine van Tol')
• Rhododendron 'Concorde' (Alpenrose 'Concorde')
• Rhododendron 'Cunningham's White' (Alpenrose 'Cunningham's White')
• Rhododendron 'Delta' (Alpenrose 'Delta')
• Rhododendron 'Diadem' (Alpenrose 'Diadem')
• Rhododendron 'Dr. H. C. Dresselhuys' (Alpenrose 'Dr. H.C. Dresselhuys')
• Rhododendron 'Erato' -S- (Alpenrose 'Erato' -S-)
• Rhododendron 'Fastuosum Flore Pleno' (Alpenrose 'Fastuosum Flore Pleno')
• Rhododendron 'Frederic d'honneur' (Alpenrose 'Frederic d'honneur')
• Rhododendron 'Furnivall's Daughter' (Alpenrose 'Furnivall's Daughter')
• Rhododendron 'Germania' -R- (Alpenrose 'Germania' -R-)
• Rhododendron 'Goldbukett' (Alpenrose 'Goldbukett')
• Rhododendron 'Goldflimmer' (Alpenrose 'Goldflimmer')
• Rhododendron 'Gomer Waterer' (Alpenrose 'Gomer Waterer')
• Rhododendron 'Hachmann's Charmant' -R- (Alpenrose 'Hachmann's Charmant' -R-)
• Rhododendron 'Hachmann's Feuerschein' -R- (Alpenrose 'Hachmann's Feuerschein' -R-)
• Rhododendron 'Humboldt' (Alpenrose 'Humbold')
• Rhododendron 'Kabarett' -R- (Alpenrose 'Kabarett' -R-)
• Rhododendron 'Kokardia' -R- (Alpenrose 'Kokardia' -R-)
• Rhododendron 'Lady A. de Trafford' (Alpenrose 'Lady A. de Trafford')
• Rhododendron 'Lee's Dark Purple' (Alpenrose 'Lee's Dark Purple')
• Rhododendron 'Madame Masson' (Alpenrose 'Madame Masson')
• Rhododendron 'Marie Forte' (Alpenrose 'Marie Forte')
• Rhododendron 'Mrs.P. den Ouden' (Alpenrose 'Mrs. P. den Ouden')
• Rhododendron 'Nova Zembla' (Alpenrose 'Nova Zembla')
• Rhododendron 'Polarnacht' (Alpenrose 'Polarnacht')
• Rhododendron 'Progres' (Alpenrose 'Progres')
• Rhododendron 'Rabatz' -R- (Alpenrose 'Rabatz' -R-)
• Rhododendron 'Rasputin' (Alpenrose 'Rasputin')
• Rhododendron 'Roseum Elegans' (Alpenrose 'Roseum Elegans')
• Rhododendron 'Sammetglut' (Alpenrose 'Sammetglut')
• Rhododendron 'Scintillation' (Alpenrose 'Scintillation')
• Rhododendron 'Simona' (Alpenrose 'Simona')
• Rhododendron 'Tarantella' -S- (Alpenrose 'Tarantella' -S-)
• Rhododendron 'Viscy' (Alpenrose 'Viscy')