Cultivar NamePlant SizeLeaf ColorVariegationVar ColorOriginFlower ColorSeasonSourceRegistered
'Unazuki Dwarf'SmallMed-Green--UnknownNear-WhiteAugust to OctoberUnknown--NR--
'Uncle Hirsch'-Blue/GreenMarginalYellowHybrid-August to SeptemberGraves, Butch.2008
'Undertow'SmallMed-Green--HybridMed-LavenderAugust to SeptemberSeaver, Charles.2012
'Uniquely Catawampus'SmallMed-GreenMarginalWhiteHybridLight-PurpleAugust to SeptemberRosenberg, Marlene & Miller, Jeff.2016
'Urchin'SmallMed-Green--HybridMed-LavenderJuly into AugustBeilstein, Doug & Mardy.2013
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