Cultivar NameSourcePlant SizeLeaf ColorVariegationVar ColorOriginFlower ColorSeasonRegistered
'Racing Stripes'Elslager, EdMediumBlue/GreenStreakedYellowHybridPale-LavenderJuly.2005
'Radiant Light'Livingston, RonMediumLight-Green--Unknown----NR--
'Radiant Star'Wilson, ChrisSmallDark-GreenMarginalYellowNat-SportPale-LavenderJune.2007
'Rainbow Delight'Benedict, Dr R. (Herb) & Dorothy & Kuenster, RodSmallMed-GreenStreakedWhiteUnknown-July into August.2010
'Rainbow Falls'Elslager, EdMediumMed-GreenStreakedWhiteHybridPale-LavenderJuly.2001
'Raindance'Walters GardensMediumMed-GreenMedialYellowTC SportPale-LavenderJuly--NR--
'Rambunctious'Struhar, BillGiantBlue/Green--UnknownNear-WhiteJuly.2018
'Rare Breed'Livingston, RonMediumMed-GreenMedialWhiteUnknownPale-Lavender---NR--
'Raspberry Beauty'Dishon, JimMediumLight-Green--HybridLight-PurpleAugust to September.1999
'Razer'Livingston, RonLargeYellow--Hybrid----NR--
'Razz'n Rick'Schmidt, BevieLargeMed-GreenStreakedYellowUnknown-August to September.2009
'Ready'Livingston, RonLargeDark-Green--UnknownMed-Lavender---NR--
'Ready Eddy'Benedict, Dr Ralph (Herb)SmallBlue/Green--Unknown----NR--
'Ready Freddy'Asch, StuartGiantDark-Green--UnknownNear-WhiteJune into July.2010
'Red Dragon'Livingston, RonMediumLight-Green--HybridLight-PurpleAugust--NR--
'Red Feather'Benedict, Dr Ralph (Herb)MediumDark-Green--Unknown----NR--
'Red Grande'Benedict, Dr Ralph (Herb)MediumDark-Green--Unknown----NR--
'Red Hot Poker'Asch, StuartSmallDark-GreenMarginalWhiteHybridLight-PurpleAugust.2005
'Red Puppy'Livingston, RonMediumMed-Green--Unknown----NR--
'Red Wing'Benedict, Dr R. (Herb) & Walek, KevinMediumLight-GreenMarginalDark GreenHybridLight-PurpleAugust.2009
'Reddy Eddy'Benedict, Dr R. (Herb) & Dorothy & Kuenster, RodLargeDark-Green--Unknown-August to September.2010
'Red-hot Mama'Elslager, EdLargeMed-GreenStreakedWhiteHybridNear-WhiteJuly.2001
'Redon Bleu'Livingston, RonLargeBlue/Green--Unknown----NR--
'Regal Chameleon'Falstad, C.HLargeBlue/GreenMarginalBlue-GreenTC SportPale-LavenderAugust.2000
'Regal Glory'Elslager, EdMediumMed-Green--HybridPale-LavenderJuly.2001
'Regal Glory'Benedict, Dr Ralph (Herb)LargeMed-GreenMarginal-HybridMed-LavenderJuly into August--NR--
'Regal Razzle Dazzle'Trucks, Gary-Med-GreenMedialLight GreenUnknown----NR--
'Regal Splendor'Walters GardensLargeBlue/GreenMarginalCreamy WhiteNat-SportPale-LavenderJuly into August.1987
'Renegade'Asch, StuartMediumMed-GreenMarginalWhiteUnknown----NR--
'Resurrection Galaxy'Elslager, EdLargeDark-GreenStreakedSpecklesNat-SportMed-LavenderJuly.1999
'Reverie'Wilkins, Dr Jim & SandyMediumMed-GreenMedialCreamy WhiteHybridPure-WhiteAugust.2003
'Rhapsody in Blue'Benedict, Dr Ralph (Herb)MediumDark-Green--HybridLight-PurpleAugust to October.1996
'Rhinestone Cowboy'Elslager, EdMediumMed-GreenMarginalCreamy WhiteHybridPale-LavenderJuly.2000
'Rhinestone Cowboy Supreme'Elslager, Ed & Schwarz, JimMediumLight-GreenStreakedYellowNat-SportPale-LavenderJuly--NR--
'Rhino Blue'Rawson, DonLargeBlue/Green--Nat-SportNear-WhiteJune into July.2010
'Rhino Gold'Rawson, DonMediumYellow--Nat-SportNear-WhiteJune into July--NR--
'Rhino Hide'Rawson, DonMediumBlue/GreenMedialYellowUnknownNear-WhiteJune into July.2007
'Rhino Tuff'Rawson, DonMediumBlue/Green--Nat-SportNear-WhiteJune into July--NR--
'Rhodeifolia Albomarginata'Krossa, Gus----Duplicate----NR--
'Richmond Splashed'Elslager, EdMediumLight-GreenStreakedYellowNat-Sport----NR--
'Rifle Ron'Schmidt, BevieMediumDark-Green--Unknown----NR--
'Right On'Benedict, Dr Ralph (Herb)SmallMed-GreenMedialWhiteHybridDeep-PurpleAugust--NR--
'Ring of Fire'Elslager, EdMediumDark-GreenMarginalYellowHybridPale-LavenderJune into July.1999
'Rip Off'Benedict, Dr R. (Herb)MediumLight-Green--UnknownPale-Lavender---NR--
'Ripple Effect'Walters GardensSmallMed-GreenMedialWhiteNat-SportPale-LavenderJuly into August--NR--
'Ripple Rind'Rawson, Don----Unknown----NR--
'Rippled Honey'Benedict, Dr R. (Herb) & Ruh, PeterLargeMed-Green--HybridLight-PurpleAugust.2006
'Rising Tide'Walters GardensLargeBlue/GreenMarginalWhiteHybrid--.1984
'Ritz'Livingston, RonGiantBlue/Green--HybridPale-LavenderJuly into August--NR--
'RK Special'Livingston, RonLargeMed-GreenMarginalWhiteUnknown----NR--
'Robyn Duback'Benedict, Dr R. (Herb) & Dorothy & Kuenster, RodMediumMed-GreenMarginalYellowUnknownMed-LavenderAugust to September.2010
'Roller Coaster'Elslager, EdLargeDark-GreenStreakedYellowHybridPale-LavenderJuly.2001
'Ron Livingston'Asch, StuartMediumLight-Green--UnknownLight-PurpleAugust--NR--
'Roostertail'Elslager, EdMediumMed-GreenStreakedWhiteHybridNear-WhiteJuly.2002
'Ros Hogh'Krossa, Gus & Mr CurtisMediumMed-Green--UnknownMed-LavenderAugust to September--NR--
'Roseann Walter'Benedict, Dr R. (Herb) & Kuk, BobLargeBlue/GreenMarginalYellowHybridPale-LavenderJune.2006
'Rosie Posie'Krul, Nancy & Belle GardensLargeDark-GreenMarginalWhiteHybridMed-LavenderAugust to September.1994
'Rough and Ready'Elslager, EdLargeDark-GreenStreakedYellowHybridNear-WhiteJune into July.2004
'Round Around'Benedict, Dr R. (Herb)SmallMed-Green--Unknown----NR--
'Rounder'Benedict, Dr Ralph (Herb)SmallBlue/Green--Unknown----NR--
'Royal Bells'Dishon, JimMediumDark-GreenMarginalYellowHybridDeep-PurpleAugust.1999
'Royal Crest'Hansen, Hans & Walters GardensLargeMed-Green--HybridPure-WhiteAugust to September.2018
'Royal Empress'Rawson, DonGiantMed-GreenMarginalChartreuseNat-SportPale-LavenderJune into July.2016
'Royal Regal Rhubarb'Benedict, Dr Ralph (Herb)LargeMed-GreenMarginalWhiteNat-SportLight-PurpleJuly into August--NR--
'Royal Super'Walters Gardens & Falstad, ClarenceMediumDark-GreenStreakedYellowNat-SportPure-WhiteJuly into August.2000
'Royal Susan'Benedict, Dr Ralph (Herb)LargeMed-GreenStreakedWhiteNat-SportPale-LavenderAugust--NR--
'Royal Wedding'Bergeron, Amy & Walters GardensMediumMed-GreenMarginalWhiteTC SportPure-WhiteAugust to September--NR--
'Roy's Pink'Benedict, Dr R. (Herb) & Walek, KevinSmallMed-Green--HybridLight-PurpleAugust.2009
'Ruby Benedict'Benedict, Dr Ralph (Herb)MediumBlue/GreenMedialYellowHybrid--.1991
'Ruffian'Asch, StuartMediumDark-Green--Nat-SportPale-LavenderJuly.2009
'Ruffle My Feathers'Livingston, RonSmallMed-GreenMarginalWhiteNat-SportMed-Lavender---NR--
'Ruffled Feathers'Asch, StuartSmallMed-GreenMarginalWhiteUnknown----NR--
'Rufus Rider'Livingston, RonMediumDark-GreenMarginalWhiteHybridPale-LavenderJuly into August--NR--
'Rumpled Gilt'Benedict, Dr Ralph (Herb)MediumYellow--Hybrid----NR--
'Run Around'Benedict, Dr R. (Herb) & Dorothy & Kuenster, RodMediumMed-Green--Unknown-July into August.2010
'Ryan's Big One'Englerth, Lawrence & RyanGiantBlue/Green--UnknownNear-WhiteJune into July.1982

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