Cultivar NamePlant SizeOriginFlower ColorSeasonSourceRegistered
'Ugly'SmallUnknown--Unknown--NR--
'Uguis'LargeUnknownLight-PurpleJuly into AugustUnknown & Walek, Kevin.2009 .2018
'Ulan'MediumHybridLight-Purple-Becherer, Josef--NR--
'Ulysses S Grant'LargeUnknownPale-LavenderJulySugita, Hajime & Ruh, Peter.2001
'Unazuki Dwarf'SmallSportNear-WhiteAugust to OctoberUnknown--NR--
'Unazuki Soules'SmallSport--Soules, Marjorie--NR--
'Uncle Albert'LargeHybrid--Wasitis, Chick.2008
'Undertow'SmallHybridMed-LavenderAugust to SeptemberSeaver, Charles.2012
'Undine'GiantHybridPale-LavenderJune into JulySchuster, Eberhard & Syre-Herz, Ursula--NR--
'Unducosa'MediumHybridMed-LavenderJulySummers, Alex & The American Hosta Society.1986
'Undulata Erromena'LargeSportPale-LavenderJulyThe American Hosta Society.1987
'Undulata Nana'SmallUnknown--Klose, Heinz--NR--
'Unexpected Song'LargeSportPure-WhiteJuly into AugustWilkins, Dr Jim.2000
'Uniquely Rails to Trails'GiantSportPale-LavenderJuly into AugustRosenberg, Marlene--NR--
'Unruly Child'MediumUnknown-July into SeptemberAvent, Tony.2012
'Upbeat'GiantHybridPale-LavenderJulyRuh, Peter.2000
'Uptown Girl'LargeHybridLight-PurpleSeptemberHansen, Hans.2007
'Urajiro Amagi Iwa'MediumSport-SeptemberUnknown & Walek, Kevin.2009
'Urajiro Hachijo'MediumSportLight-PurpleSeptemberUnknown--NR--
'Urajiro Iwa'MediumSportLight-PurpleSeptemberUnknown--NR--
'Urajiro Izu Iwa'SmallSportMed-LavenderAugust to SeptemberUnknown & Walek, Kevin.2009
'Urajiro Ko Iwa'MiniatureHybrid--Watanabe, Kenji--NR--
'Urajiro Musashino'SmallSportLight-PurpleAugust to SeptemberUnknown--NR--
'Urajiro Oba'LargeSport--Unknown--NR--
'Urajiro Sudare'LargeUnknown--Unknown--NR--
'Urajiro Ubatake'SmallSportLight-PurpleJulyWatanabe, Kenji--NR--
'Urajiro', H. rupifragaSmallSportDeep-Purple-Nigishi--NR--
'Urchin'SmallHybridMed-LavenderJuly into AugustBeilstein, Doug & Beilstein, Mardy.2013
'Utah Kid'SmallUnknown--Unknown--NR--
'Uzu-no-mai'MiniatureUnknownLight-PurpleAugustUnknown & Walek, Kevin.2009
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