Unknown BackgroundPlant SizeLeaf ColorVariegationVar ColorFlower ColorSeasonSourceRegistered
'Il Gallo d'Oro'      Unknown--NR--
'L'Île d'Orléans'MediumLight-Green  Near-White Bastille, Jocelyne--NR--
'Oakview'SmallBlue/Green  Med-LavenderJune into JulyStone, David & Ruh, Peter.1987
'Oasis'LargeBlue/Green  Near-WhiteJune into JulyWard, Dr Dick & Jane.2012
'Oba Kanzashi'      Unknown--NR--
'Oberland Advanced Technology'LargeLight-GreenMarginalWhitePale-LavenderJuly into AugustRank, Stefan.2013
'Occupy Wall Street'SmallBlue/GreenMarginalWhite July into AugustFreeman, Franc.2012
'Ocean Dusk'      Moore, Jeff--NR--
'Ocean Isle Gold'LargeMed-GreenMarginalYellowNear-WhiteJune into JulyChopko, Dave--NR--
'Oceans Away'GiantBlue/Green   June into JulyHanson, Curt--NR--
'Oceans Blue'LargeBlue/Green   July into AugustSchmidt, Bevie.2009
'Ocean's Fury'LargeBlue/Green    Rawson, Don--NR--
'October Skies'LargeLight-Green    Bemis, Royall--NR--
'October Statement'      Summers, Alex--NR--
'Oder'MediumBlue/Green  Med-LavenderJuly into AugustKlose, Heinz--NR--
'Odina'LargeBlue/Green    Wade, Van--NR--
'Odo'SmallLight-GreenMarginalDark Green  Dupre, Dirk--NR--
'Oglala'GiantBlue/Green    Wade, Van--NR--
'Ogon Chirifu Hime'SmallMed-Green    Klose, Heinz--NR--
'Ogon Dai Tokudama'LargeYellow    Watanabe, Kenji--NR--
'Ogon Hime Tokudama'SmallLight-Green  Pale-LavenderJune into JulyUnknown & Ruh, Peter.2002 .2018
'Ogon Iwa'MediumYellow  Med-LavenderAugust to SeptemberUnknown--NR--
'Ogon Koba'SmallYellow  Pale-PurpleAugustUnknown--NR--
'Ogon Muraski'SmallYellow  Pale-PurpleJulyUnknown--NR--
'Ogon Nishiki'      Unknown--NR--
'Ogon Otome'SmallYellow  Deep-PurpleJulyUnknown--NR--
'Ogon Otome Gibosa'SmallLight-Green    Unknown--NR--
'Ogon Otome Hideko'MiniatureYellow    Unknown--NR--
'Ogon Sagae'MediumYellow  Pale-LavenderJuly into AugustUnknown--NR--
'Ogon Setouchi'MediumYellow    Unknown--NR--
'Ogon Sudare'SmallYellow  Pale-LavenderJulyLantis, Clarence & Ruh, Peter.2002 .2018
'Ogon Tachi'LargeLight-Green  Deep-PurpleAugustLantis, Clarence & Ruh, Peter.2002 .2018
'Ogon Tsushima'MediumYellow  Pale-PurpleJuly into AugustUnknown & Ruh, Peter.2002 .2018
'Ogon Urajiro'MediumYellow    Unknown--NR--
'Ogon Wasei'SmallYellowMarginalGreen  Unknown--NR--
'Ogon Wogon' Yellow    Epstein, Harold--NR--
'Oh Baby Mine'MiniatureDark-Green    Unknown--NR--
'Oh Dannyboy'LargeDark-Green    Skaggs, Virginia & Brian--NR--
'Oh Henry'MediumBlue/GreenStreakedYellow  Unknown--NR--
'Oh My Darling'SmallLight-Green    Unknown--NR--
'Oh My Heart'MediumMed-Green  Pale-PurpleJulyLydell, Ransom.2001
'Oh to Be Fourteen'LargeDark-Green    Unknown--NR--
'O'Harra'SmallYellow  Deep-PurpleJulyO'Harra, Russ & Walek, Kevin.2009
'O'Heartland Gold' Yellow    O'Harra, Russ--NR--
'Ohh! Alpha'MediumYellow    Schulz, Ed.2009
'Ohh! Blue Beacon'SmallBlue/Green  Near-WhiteJune into JulySchulz, Ed.2013
'Ohh! Blue Bounty'LargeBlue/Green  Near-WhiteJune into JulySchulz, Ed.2011
'Ohh! Blue Bruiser'GiantBlue/Green  Med-Lavender Schulz, Ed.2011
'Ohh! Blue Granite'MediumBlue/Green  Near-WhiteJune into JulySchulz, Ed.2018
'Ohh! Blue Otto'SmallBlue/Green    Schulz, Ed.2009
'Ohh! Charlotte!'LargeYellow   June into JulySchulz, Ed.2012
'Ohh! Clare'LargeYellow   July into AugustSchulz, Ed.2016
'Ohh! Elvira'LargeYellow   July into AugustSchulz, Ed.2016
'Ohh! His Blue Eyes'LargeBlue/Green  Med-LavenderJune into JulySchulz, Ed.2017
'Ohh! Jewell'LargeYellow  Near-WhiteJune into JulySchulz, Ed.2017
'Ohh! Laurel' Yellow    Schulz, Ed.2009
'Ohh! Lovilia'LargeYellow  Near-WhiteJune into JulySchulz, Ed.2015
'Ohh! Ludell'SmallYellow    Schulz, Ed.2009
'Ohh! Valeria'LargeYellow    Schulz, Ed.2009
'Ohh! Viola'MediumYellow  Near-WhiteJune into JulySchulz, Ed.2015
'Ohio Blue' Blue/Green    Wade, Van--NR--
'OHS Udo's Labour'      Ontario Hosta Society--NR--
'Ojibway'MediumBlue/Green    Wade, Van--NR--
'Okan'LargeMed-GreenMarginalYellow  Unknown--NR--
'Okobaji'SmallBlue/Green    Tompkins, Chet & Ruh, Peter & Jean.2008
'OKUHIDA'      Unknown 
'Okukuji Nakafu Iwa'MediumDark-GreenMedialYellow  Hisashi--NR--
'Okutama Nishiki'SmallMed-GreenMedialYellowPale-PurpleAugust to OctoberUnknown--NR--
'Old Arrowhead'Large     Tompkins, Chet--NR--
'Old Cadillac'LargeBlue/Green  Pale-LavenderJuneDiesen, Jane & Bernie.1998
'Old Cardboard Boxes'LargeBlue/Green    Marcelle, Eric--NR--
'Old Frosty'LargeBlue/Green    Rawson, Don--NR--
'Old Gold Edge'MediumDark-GreenMarginalYellow  Tompkins, Cynthia--NR--
'Old Jerusalem Road'LargeBlue/GreenStreakedWhite  Goodenough, Rick--NR--
'Old Rough House'GiantBlue/Green    Wade, Van--NR--
'Old Yeller'LargeYellow    Unknown--NR--
'Olga'      Unknown--NR--
'Olga Gibosa'LargeMed-Green  Pale-PurpleJuly into AugustWade, Van--NR--
'Oliver'SmallMed-GreenMarginalWhite  O'Harra, Russ--NR--
'Oliver Garden'MediumMed-GreenStreakedWhite  Unknown--NR--
'Olive's Freckles'GiantMed-Green  Pale-LavenderJulyPauley, Olive--NR--
'Olivia'MediumBlue/Green  Near-White Schwarz, Jim--NR--
'Olympic Fab Five'MediumYellow   July into AugustFreeman, Franc.2012
'Olympic Gold'MediumYellow  Near-WhiteJuly into AugustBanyai, Pauline.1986
'Olympic Mist'LargeBlue/GreenStreakedSpeckles  Naylor Creek Nursery--NR--
'Omaha'LargeBlue/Green    Wade, Van--NR--
'Omar the Tentmaker'LargeMed-Green    Unknown--NR--
'Oma's Sunrise'LargeBlue/Green    Sisson, Kathie--NR--
'Omatsu-san Nishiki'SmallLight-Green  Pale-Purple Ruh, Peter.2002 .2018
'Omega'LargeMed-GreenMarginalYellow  Unknown--NR--
'On Angel Wings'LargeBlue/GreenStreakedWhite  Goodenough, Rick--NR--
'One Cent'      Jentsch, Klaus--NR--
'Oneida'MediumMed-Green    Wade, Van--NR--
'Ontario Blue'LargeBlue/Green    Wade, Van--NR--
'Ooltewah'      Unknown--NR--
'Ooshima-jishi Hachijo'LargeMed-GreenMedialYellow  Unknown--NR--
'Open Hearted'GiantBlue/Green   JulyWade, Van.1999
'Ophir'MediumLight-Green  Pale-Lavender Fischer, Dr Ulrich--NR--
'Opipara'MediumMed-GreenMarginalYellowPale-LavenderJuly into AugustMaekawa, Dr Fumio & AHS.2002
'Opipara Koriyama'MediumMed-GreenMarginalWhitePale-PurpleAugustUnknown--NR--
'Opipara Omatsa San'SmallMed-Green    Unknown--NR--
'Oplosa'MediumBlue/GreenMarginalCreamy White - -Unknown--NR--
'Oracle'GiantMed-Green   June into JulyWard, Dr Dick & Jane.2003
'Orange Ice' Yellow    Hawes, James--NR--
'Orion's Belt'LargeBlue/Green  Pale-LavenderJulyWard, Dr Dick & Jane.2003
'Orphan Annie'MiniatureMed-GreenMarginalWhitePale-PurpleJulyUnknown--NR--
'Orphan Child'MediumMed-Green  Pale-PurpleJuneBanyai, Pauline & DaPra, Sarah.2000
'Orphan Train Rider'SmallLight-Green  Med-LavenderJuly into AugustKwick, Charles.2017
'Osiris Blue Night'LargeBlue/Green    Les Jardins Osiris--NR--
'Osiris Folichon'MediumMed-Green  Pale-LavenderAugustLes Jardins Osiris & Fafard, Serge--NR--
'Osiris Giant Green'GiantMed-Green    Les Jardins Osiris--NR--
'Osiris Illumination'GiantLight-Green    Les Jardins Osiris--NR--
'Osiris Insomniaque'MediumMed-GreenStreakedYellow  Les Jardins Osiris & Fafard, Serge--NR--
'Osiris Louis Cyr'      Les Jardins Osiris & Fafard, Serge--NR--
'Osiris Marie Robillard'LargeBlue/GreenMarginalLight Green  Les Jardins Osiris--NR--
'Osiris Mignonne'SmallLight-GreenMarginalWhite  Les Jardins Osiris--NR--
'Osiris Mirage'SmallLight-GreenMarginalWhite  Les Jardins Osiris--NR--
'Osiris Obscure'LargeDark-Green    Les Jardins Osiris--NR--
'Osiris Ovation'LargeYellow  Pale-Lavender Les Jardins Osiris--NR--
'Osiris Pacha'MediumMed-GreenMarginalYellow  Les Jardins Osiris--NR--
'Osiris Prestige' Med-GreenMedialWhite  Les Jardins Osiris & Fafard, Serge--NR--
'Osiris Sentinelle'LargeBlue/Green    Les Jardins Osiris--NR--
'Osiris Soleil Levant'LargeMed-GreenMarginalYellow  Les Jardins Osiris & Fafard, Serge--NR--
'Osiris Trouvaille'LargeBlue/GreenMarginalYellow  Les Jardins Osiris--NR--
'Osprey'MediumBlue/Green  Pure-WhiteJune into JulySmith, Eric & BHHS.1988
'Otao Keikoku'SmallMed-Green  Near-WhiteAugustSavory, Robert--NR--
'Otara's Sunrise'LargeMed-GreenMarginalWhite  Johns, Eddie--NR--
'Otome Gokoro' Med-GreenMarginalWhite  Unknown--NR--
'Otome-no-ka'MediumDark-Green  Pale-PurpleAugustWatanabe, Kenji & Ruh, Peter.2002
'Otome-no-Niji' Med-GreenMedialWhite  Unknown--NR--
'Ototo San'MiniatureDark-GreenMarginalWhiteMed-LavenderAugust to SeptemberRuh, Peter.1990 .2018
'Ottawa'LargeMed-Green    Wade, Van--NR--
'Otter Point'LargeMed-Green  Med-Lavender Wrede, Arthur--NR--
'Our Child'MediumDark-GreenMarginalYellow  Unknown--NR--
'Out of Print'SmallLight-GreenMedialYellow  Van Eechaute, Danny--NR--
'Outer Banks' Blue/GreenStreakedWhite  Goodenough, Rick--NR--
'Outrageous Benedict'      Unknown--NR--
'Outside'SmallLight-GreenMarginalYellow  Goodwin, Randy--NR--
'Over the Waves'MediumBlue/Green   August to SeptemberBenedict, Dr R. (Herb) & Dorothy & Kuenster, Rod.2010
'Overserved'SmallYellow    Shady Characters Nursery--NR--
'Oyo Como Va'MediumMed-Green    Bastille, Jocelyne--NR--
'Oze'MiniatureMed-GreenMarginalYellowNear-WhiteAugustUnknown--NR--
'Oze Shirobana Mizu'MediumMed-Green  Pale-PurpleAugust to OctoberUnknown--NR--
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