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No.Cultivar NamePlant SizeLeaf ColorVariegationVar ColorOriginFlower ColorSeasonSourceRegistered
1 'Il Gallo d'Oro'-Yellow-Gold--Unknown--Unknown--NR--
2 'Og, Son of Fire'MiniatureMed-GreenMarginalWhiteHybrid--Beilstein, Doug & Malloy, Alex--NR--
3 'Ogon Iwa'MediumYellow--UnknownMed-LavenderAugust to SeptemberUnknown--NR--
4 'Ogon Tsushima'MediumYellow--UnknownLight-PurpleJuly into AugustUnknown & Ruh, Peter.2002 .2018
5 'Oh! Susanna'MediumBlue/Green--HybridMed-LavenderJune into JulyReuter, Laurence & Gilligan, Madelon.2015
6 'OHS Calamari'SmallMed-GreenMedialWhiteTC SportLight-PurpleAugust to SeptemberLasek, Robert & Ontario Hosta Society.2008
7 'Okukuji Nakafu Iwa'MediumDark-GreenMedialYellowNat-Sport--Hisashi--NR--
8 'Okuyama Giboshi'SmallDark-Green--Duplicate--Duplicate Name--NR--
9 'Old Faithful'LargeMed-Green--HybridPure-WhiteAugust to OctoberBrincka, Wm & Petryszyn, 0lga.1991
10 'Old Wethersfield'LargeDark-Green  UnknownLight-Purple Goodenough, Rick--NR--
11 'Oma's Sunrise'LargeBlue/Green--Unknown--Sisson, Kathie--NR--
12 'One Man's Treasure'MediumDark-Green--SportLight-PurpleAugust to OctoberBenedict, Dr Ralph (Herb) & Solberg, Robert.1999
13 'One-trip Salad Bar'SmallDark-GreenMarginalYellowNat-SportMed-LavenderJuly into AugustSolberg, Robert--NR--
14 'Ophir'MediumLight-Green--UnknownPale-Lavender-Fischer, Dr Ulrich--NR--
15 'Over the Waves'MediumBlue/Green--Unknown-August to SeptemberBenedict, Dr Ralph (Herb) & Kuenster, Rod.2010
16 'Owens Outrage'MediumLight-Green--UnknownMed-Lavender-Moore, Jeff--NR--
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