Cultivar NamePlant SizeLeaf ColorVariegationVar ColorOriginFlower ColorSeasonSourceRegistered
'Radiant Light'MediumLight-Green--Unknown--Livingston, Ron--NR--
'Rambunctious'GiantBlue/Green--UnknownNear-WhiteJulyStruhar, Bill.2018
'Raspatini'MiniatureMed-Green--HybridLight-PurpleAugustZilis, Mark.2009
'Raspberry Ice Cream'GiantYellowStreakedSpecklesNat-SportMed-LavenderJulyUnknown--NR--
'Razzmatazz'MediumMed-GreenMarginalWhiteNat-SportPale-LavenderJuly into AugustBeilstein, Doug & Mardy.2013
'Red Stilts'LargeMed-Green--HybridPale-LavenderJune into JulyVan Eechaute, Danny.2011
'Regal Tot'SmallLight-Green--HybridLight-PurpleJuly into AugustZilis, Mark.2010
'Remembrance'MediumBlue/GreenMarginalYellowHybrid-June into JulySkaggs, Virginia & Brian & Gilligan, Madelon.2015
'Reverend Mac'MediumBlue/Green--Nat-SportPale-LavenderJuly into AugustVan Eechaute, Danny.2011
'Rhino Blue'LargeBlue/Green--Nat-SportNear-WhiteJune into JulyRawson, Don.2010
'Rhino Tuff'MediumBlue/Green--Nat-SportNear-WhiteJune into JulyRawson, Don--NR--
'Richland Blue'LargeBlue/Green--UnknownNear-WhiteJune into JulyWade, Van.2007
'Richmond Blue'LargeBlue/Green--TC SportNear-WhiteJune into JulyZumbar, Wm & Walek, Kevin.2009
'Ringmaster'SmallBlue/GreenMarginalWhiteNat-SportPale-LavenderJulyZilis, Mark.2011
'River's Edge'LargeBlue/GreenMarginalWhiteNat-SportPale-LavenderJulyWalek, Kevin--NR--
'Road Rage'MediumMed-Green--HybridDeep-PurpleAugustBeilstein, Doug.2018
'Rock-N-Chick'-Blue/GreenStreakedWhiteUnknown--Ziarek, Ken--NR--
'Rocky Mountain High'LargeMed-GreenMarginalYellowHybridPale-LavenderJune into JulyKuk, Bob.1991
'Rosaleen'SmallDark-GreenMarginalWhiteHybridLight-PurpleJune into JulyGilligan, Madelon.2017
'Rosie Posie'LargeDark-GreenMarginalWhiteHybridMed-LavenderAugust to SeptemberKrul, Nancy & Belle Gardens.1994
'Rostraver Heritage'LargeMed-Green--UnknownNear-WhiteJuly into AugustZolock, Steve & Sarah.2009
'Rough Knight'SmallBlue/Green--HybridMed-LavenderAugustBeilstein, Doug & Mardy.2013
'Roundhouse Blues'LargeBlue/Green--UnknownNear-WhiteJune into JulyMicheletti, Tom.1998
'Rowan My Boat'LargeBlue/Green--HybridMed-LavenderJune into JulyBeilstein, Doug & Mardy.2018
'Royal Crest'LargeMed-Green--HybridPure-WhiteAugust to SeptemberHansen, Hans & Walters Gardens.2018
'Royal Empress'GiantMed-GreenMarginalChartreuseNat-SportPale-LavenderJune into JulyRawson, Don.2016
'Royal Wedding'MediumMed-GreenMarginalWhiteTC SportPure-WhiteAugust to SeptemberBergeron, Amy & Walters Gardens--NR--
'Ruffed Up'LargeYellow--HybridPale-LavenderAugust to SeptemberCarlson, Monty & Julie.2009
'Ruffles n Ridges'GiantBlue/Green--HybridMed-LavenderJune into JulyFox, Bob & Fox Hosta Farm.2018
'Rumpelstiltskin'MediumDark-GreenMarginalLight GreenHybridLight-PurpleJulySavory, Robert & Savory, Dennis.1997
'Rusty's Fine Line'LargeDark-GreenMedialWhiteNat-SportPale-LavenderJuly into AugustRouillier, Denis--NR--
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