Cultivar NamePlant SizeLeaf ColorVariegationVar ColorOriginFlower ColorSeasonSourceRegistered
'Ragtime'LargeYellow--HybridPale-LavenderJune into JulyWard, Dr Dick & Ward, Jane.2013
'Rainmaker'GiantMed-Green--Unknown-June into JulyWard, Dr Dick & Ward, Jane.2009
'Ralph Dietrick'----Duplicate--Duplicate Name--NR--
'Rare Breed'MediumMed-GreenMedialWhiteHybridNear-WhiteJune into JulyLivingston, Ron & The American Hosta Society.2019
'Rebel Rouser'MediumYellow--HybridNear-WhiteJulyWasitis, Chick--NR--
'Red October'MediumDark-Green--HybridLight-PurpleSeptember to OctoberHerold, Roy & Walek, Kevin.2009
'Red River'SmallDark-Green--Hybrid--Malloy, Alex--NR--
'Red Ryder'SmallMed-GreenStreakedWhiteHybridPale-LavenderJuly into AugustMalloy, Alex.2001
'Risky Business'LargeDark-GreenMedialWhiteSportPale-LavenderJulyHansen, Hans.2002
'Rolling Thunder'LargeBlue/Green--UnknownNear-WhiteJune into JulyBrashear, Carol--NR--
'Rosebud'LargeMed-Green--Unknown-JulySavory, Dennis.1992
'Rosedale Firefly'LargeYellow--Unknown--Hadrava, Jerry--NR--
'Rosedale Houdini'MediumMed-GreenStreakedYellowHybridLight-PurpleJuly into AugustHadrava, Jerry.2000
'Route 66'LargeYellow--TC Sport-July into AugustZilis, Mark.2005
'Roxsanne'LargeLight-Green--SportMed-LavenderJulyHeemskerk, Gerardus.2005
'Ruby Slippers'MediumMed-Green--HybridLight-PurpleSeptemberWard, Dr Dick & Ward, Jane.1999
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