Cultivar NamePlant SizeLeaf ColorVariegationVar ColorOriginSeasonSourceRegistered
'Oberland Advanced Technology'LargeLight-GreenMarginalWhiteUnknownJuly into AugustRank, Stefan.2013
'Oberland Colourful Noise'LargeDark-GreenStreakedWhiteNat-SportJuly into AugustRank, Stefan.2013
'Oberland Spring Air'MediumMed-GreenMedialWhiteNat-SportJuly into AugustRank, Stefan.2013
'Oberland Thin Line'MediumBlue/GreenMarginalYellowNat-SportJuly into AugustRank, Stefan--NR--
'Obsession'MediumMed-GreenMarginalGreenish WhiteNat-SportAugustAvent, Tony.1998
'Occupy Wall Street'SmallBlue/GreenMarginalWhiteUnknownJuly into AugustFreeman, Franc.2012
'Ocean Isle Gold Dust'MediumLight-GreenMedialYellowNat-SportJuly into AugustChopko, Dave--NR--
'Ocean Isle Tornado'MediumMed-GreenMedialWhiteNat-SportJuly into AugustChopko, Dave--NR--
'Ocean Isle Twist'MediumDark-GreenMedialWhiteNat-SportJuly into AugustChopko, Dave.2006
'Oceans Blue'LargeBlue/Green--UnknownJuly into AugustSchmidt, Bevie.2009
'October Sky'MediumBlue/Green--HybridAugust to SeptemberDean, Don.2008
'Oder'MediumBlue/Green--UnknownJuly into AugustKlose, Heinz--NR--
'Oga'MediumMed-Green--UnknownAugustUnknown--NR--
'Ogon Iwa'MediumYellow--UnknownAugust to SeptemberUnknown--NR--
'Ogon Koba'SmallYellow--UnknownAugustUnknown--NR--
'Ogon Sagae'MediumYellow--UnknownJuly into AugustUnknown--NR--
'Ogon Tachi'LargeLight-Green--UnknownAugustLantis, Clarence & Ruh, Peter.2002 .2018
'Ogon Tsushima'MediumYellow--UnknownJuly into AugustUnknown & Ruh, Peter.2002 .2018
'Ohh! Clare'LargeYellow--UnknownJuly into AugustSchulz, Ed.2016
'Ohh! Elvira'LargeYellow--UnknownJuly into AugustSchulz, Ed.2016
'Ohh! Richland Reward'MediumYellowMarginalWhiteTC SportJuly into AugustSchulz, Ed--NR--
'OHS Calamari'SmallMed-GreenMedialWhiteTC SportAugust to SeptemberLasek, Robert & Ontario Hosta Society.2008
'OHS Juno'MediumBlue/Green--Nat-SportJuly into AugustOntario Hosta Society--NR--
'OHS Margot's Delight'MediumBlue/Green--Nat-SportJuly into AugustOntario Hosta Society--NR--
'Oil Paint'MediumDark-GreenStreakedYellowHybridJuly into AugustVan Eechaute, Danny.2013
'Okaydokey'MediumYellowMarginalDark GreenNat-SportJuly into AugustWalters Gardens & Walek, Kevin.2009
'Okazaki'SmallMed-Green--HybridAugust to SeptemberSugita, Hajime & Ruh, Peter & Jean.2002
'Okefenokee'MediumMed-GreenMarginalYellowNat-SportJuly into AugustBenedict, Dr R. (Herb) & Walek, Kevin.2009
'Okutama Nishiki'SmallMed-GreenMedialYellowUnknownAugust to OctoberUnknown--NR--
'Old Faithful'LargeMed-Green--HybridAugust to OctoberBrincka, Wm & Petryszyn, 0lga.1991
'Olga Gibosa'LargeMed-Green--UnknownJuly into AugustWade, Van--NR--
'Olympic Fab Five'MediumYellow--UnknownJuly into AugustFreeman, Franc.2012
'Olympic Glacier'MediumDark-GreenMarginalYellowNat-SportJuly into AugustNaylor Creek Nursery.2005
'Olympic Gold'MediumYellow--UnknownJuly into AugustBanyai, Pauline.1986
'Olympic Gold Medal'MediumYellow--Nat-SportJuly into AugustFransen, Marco & Naylor Creek Nursery--NR--
'Olympic Silver Medal'MediumBlue/Green--Nat-SportJuly into AugustFransen, Marco & Naylor Creek Nursery--NR--
'Olympic Sunrise'MediumBlue/GreenMedialYellowNat-SportJuly into AugustNaylor Creek Nursery.2005
'Olympic Torch'LargeYellow--HybridJuly into AugustGoodwin, Randy.2009
'Olympic Twilight'MediumBlue/GreenMarginalYellowNat-SportJuly into AugustNaylor Creek Nursery--NR--
'On Fire'MediumBlue/GreenStreakedYellowTC SportJuly into AugustZilis, Mark.2011
'On the Border'MediumMed-GreenMarginalWhiteHybridAugustBeilstein, Doug.2007
'On the Marc'MediumMed-GreenMedialYellowNat-SportAugustLaviana, Marc & Malloy, Alex.1999
'Once upon a Time'MediumMed-GreenMarginalWhiteHybridAugustWilkins, Dr Jim & Sandy.2002
'One Man's Treasure'MediumDark-Green--Nat-SportAugust to OctoberBenedict, Dr R. (Herb) & Solberg, Robert.1999
'OOME'LargeBlue/GreenStreakedSpecklesHybridJuly into AugustGussman, C..2009
'Opipara'MediumMed-GreenMarginalYellowUnknownJuly into AugustMaekawa, Dr Fumio & AHS.2002
'Opipara Koriyama'MediumMed-GreenMarginalWhiteUnknownAugustUnknown--NR--
'Orange Marmalade'LargeMed-GreenMedialWhiteNat-SportJuly into AugustSolberg, Robert.2002
'Orange Slices'MediumYellow--TC SportJuly into AugustZilis, Mark.2003
'Orange Star'MediumYellow--Nat-SportJuly into Augustvan den Top, Jan--NR--
'Oreo Cream'MediumDark-GreenMedialWhiteNat-SportJuly into AugustZiarek, Ken--NR--
'Oriana'MediumMed-Green--Nat-SportJuly into AugustSmith, Eric--NR--
'Orinoco Flow'MediumMed-Green--HybridJuly into AugustCross, Peter.2002
'Orphan Train Rider'SmallLight-Green--UnknownJuly into AugustKwick, Charles.2017
'Orphan Train Ruffian'MediumDark-Green--HybridJuly into AugustKwick, Charles.2017
'Oshima Silk'MediumMed-GreenMarginalWhiteHybridAugust to SeptemberShimizu, Toshirou & Zilis, Mark.2009
'Osiris Folichon'MediumMed-Green--UnknownAugustFafard, Serge--NR--
'Otao Keikoku'SmallMed-Green--UnknownAugustSavory, Robert--NR--
'Otome-no-ka'MediumDark-Green--UnknownAugustWatanabe, Kenji & Ruh, Peter.2002
'Ototo San'MiniatureDark-GreenMarginalWhiteUnknownAugust to SeptemberRuh, Peter.1990 .2018
'Outer Limits'MediumMed-GreenMedialSpecklesNat-SportJuly into AugustBennerup, Pierre.2000
'Outrageous Dragon'-Dark-GreenStreakedWhiteHybridJuly into AugustKuenster, Rod.2010
'Over the Waves'MediumBlue/Green--UnknownAugust to SeptemberBenedict, Dr R. (Herb) & Dorothy & Kuenster, Rod.2010
'Oze'MiniatureMed-GreenMarginalYellowUnknownAugustUnknown--NR--
'Oze Shirobana Mizu'MediumMed-Green--UnknownAugust to OctoberUnknown--NR--
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