Rosa cultivars O

English: Cultivars of the genus Rosa; names commencing with O

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  Ocaso, Dot 1957
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  'Oeillet Flamand', Vibert 1845
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  Oeillet Parfait, Foulard 1841
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  Officinalis, < 1240
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  Oklahoma, Swim & Weeks < 1963
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  Olala, Tantau 1956
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  Old Blush, < 1790
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  Old Master, McGredy 1974
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  Old Port, McGredy 1994
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  Old Velvet Rose, 1596
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  Oleander Rose, Interplant 1983
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  'Olga Tschechowa'
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  'Olympiad', McGredy 1982
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  Olympic Fire, Tantau 1992
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  Olympic Torch, Suzuki 1972
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  Omar Kayyam, Kew Garden 1893
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  Omer-Pacha, Pradel 1853
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  Ondella, Meilland 1994
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  Open Arms, Warner 1995
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  Opening Night, Zary 1998
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  Operettenrose, Delbard-Chabert 1967
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  Ophelia, before 1912
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  Orange Babyflor, Tantau 1994
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  Orange Everglow, Brownell 1942
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  Orange Meillandina, Meilland 1980
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  Orange Sensation, De Ruiter 1961
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  Orange Splash, Christensen 1991
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  Orange Sweetheart, Boerner 1952
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  Orange Triumph, Kordes 1937
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  Orangeade, McGredy 1959
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  Oranges 'n' Lemons, McGredy 1994
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  Orchid Romance, Radler 2011
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  Oregold, Tantau 1970
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  Oregon Centennial, Von Abrams 1959
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  Orinda, Preston 1922
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  Ornement de la Nature, before 1814
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  Osaka, Teranishi 2001
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  Osiana, Tantau 1988
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  Oskar Scheerer, Kordes 1961
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  Othello, Austin 1986
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  Out of Rosenheim, Kordes < 2010
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  Outta The Blue, Carruth 2000
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  Over the Moon, Orard < 2005