Cultivar NamePlant SizeOriginFlower ColorSeasonSourceRegistered
'Rambunctious'GiantUnknownNear-WhiteJulyStruhar, Bill.2018
'Raucous Ruffles'MediumHybrid--Dean, Don.2008
'Ready Eddy'SmallUnknown--Benedict, Dr Ralph (Herb)--NR--
'Red Grange'MediumUnknown--Unknown--NR--
'Red Wine Fries'MediumHybridMed-Lavender-Van Wyke, Trudy--NR--
'Redon Bleu'LargeUnknown--Livingston, Ron--NR--
'Regal Flame'LargeSportMed-LavenderJuly into AugustUnknown--NR--
'Regal Skies'LargeSportMed-LavenderJulyBanyai, Bruce.1999
'Regalia'LargeSportPale-LavenderJuly into AugustAnderson, Kenneth.1992
'Reginald Kaye'MediumUnknownNear-WhiteAugustRuh, Peter & Ruh, Jean.2003
'Rembrandt Blue'LargeHybridNear-WhiteJune into JulyMoldovan, Steve.1983
'Restless Sun'SmallUnknown--Unknown--NR--
'Reverend Mac'MediumSportPale-LavenderJuly into AugustVan Eechaute, Danny.2011
'Rhein'MediumUnknownPale-LavenderAugustKlose, Heinz & Ruh, Peter & Ruh, Jean.2003
'Rhino Blue'LargeSportNear-WhiteJune into JulyRawson, Don.2010
'Rhino Tuff'MediumSportNear-WhiteJune into JulyRawson, Don--NR--
'Rhubarb Blue'LargeUnknown--Tompkins, Cynthia--NR--
'Rhythm and Blues'SmallHybridPale-LavenderJuly into AugustJohnson, Greg.2004
'Ribbon Dancer'-Unknown--Terpening, Kent--NR--
'Richland Blue'LargeUnknownNear-WhiteJune into JulyWade, Van.2007
'Richmond Blue'LargeTC SportNear-WhiteJune into JulyZumbar, Wm & Walek, Kevin.2009
'Rick Strub'LargeHybrid--Zilis, Mark--NR--
'Ridges'LargeHybridNear-WhiteJulyFisher, Eunice V.--NR--
'Ripped'LargeUnknownPale-LavenderJulySoules, Marjorie & Goodenough, Rick--NR--
'Rippled Blue Circles'LargeHybrid--Summers, Alex--NR--
'Riptide'MediumHybridPale-LavenderAugustSellers, Van.1987
'Ritz'GiantHybridPale-LavenderJuly into AugustLivingston, Ron--NR--
'River City Blues'LargeUnknownPale-LavenderJune into JulyZilis, Mark & Ankney, Barry.2018
'River Nile'GiantHybridNear-WhiteJune into JulyMoldovan, Steve.1983
'Robin of Loxley'MediumUnknownNear-WhiteJune into JulySchwarz, Jim--NR--
'Robin's Pride'LargeUnknown-June into JulyGoodwin, Randy.2000
'Rock and Roll'LargeSportNear-WhiteJuneKuk, Bob.1999
'Rock Garden Blue'LargeUnknown--Tompkins, Chet--NR--
'Rock of Ages'GiantSportPure-WhiteJune into JulyWard, Dr Dick & Ward, Jane.2009
'Rock of Gibralter'LargeSport-June into JulyZilis, Mark.2010
'Rock Star Land'MediumHybrid--Stadden, Josh--NR--
'Rocknoll Blue Dwarf'MiniatureUnknown-AugustSaur, B. & Ruh, Peter.1996
'Rock'n'Roll Heart'LargeUnknown--Port, Linda--NR--
'Rocky Fork'MediumUnknownPale-LavenderJune into JulyWard, Dr Dick & Ward, Jane.2003
'Roderick'GiantUnknownPale-Lavender-O'Harra, Russ.1999
'Rolling Thunder'LargeUnknownNear-WhiteJune into JulyBrashear, Carol--NR--
'Roscoe'GiantHybridNear-WhiteJuneWade, Van.1999
'Rosedale Babe'LargeHybridNear-WhiteJuly into AugustHadrava, Jerry.2000
'Rosedale Black Hole'LargeHybridPale-LavenderJune into JulyHadrava, Jerry.2000
'Rosedale Black Ice'LargeHybridNear-WhiteJune into JulyHadrava, Jerry.1999
'Rosedale Catcher's Mitt'LargeHybridLight-PurpleJuly into AugustHadrava, Jerry.2000
'Rosedale Dewy'MediumHybridNear-WhiteJune into JulyHadrava, Jerry.1999
'Rosedale Glacier Ice'SmallHybrid--Hadrava, Jerry.1999
'Rosedale John Stratton'MediumHybrid--Hadrava, Jerry.1999
'Rosedale Mr. Blue Jeans'LargeHybridPure-WhiteJulyHadrava, Jerry.1999
'Rosedale Pickles'MediumHybridNear-WhiteJulyHadrava, Jerry.1999
'Rosedale Rain Catcher'LargeHybridNear-WhiteJuneHadrava, Jerry.2000
'Rosedale Richie Vallens'GiantHybridPale-LavenderJulyHadrava, Jerry.2000
'Rosedale Rob Lucomus'LargeUnknownNear-WhiteJuneHadrava, Jerry--NR--
'Rosedale Rosette'MediumHybrid--Hadrava, Jerry.1999
'Rosedale Spoons'MediumUnknownNear-WhiteJulyHadrava, Jerry.1999
'Rosedale Tractor Seat'LargeHybridNear-WhiteJuneHadrava, Jerry.1999
'Rosy'MediumUnknown--Klose, Heinz--NR--
'Rotunda'MediumHybridPale-LavenderJuneSavory, Robert.1998
'Rough Knight'SmallHybridMed-LavenderAugustBeilstein, Doug & Beilstein, Mardy.2013
'Rough Rider'MediumUnknown--Beilstein, Doug--NR--
'Rough Waters'LargeHybridNear-WhiteJune into JulyArmstrong, Maxine.1969
'Roundabout' (Savory)MediumHybridPale-LavenderJuneSavory, Robert.1988
'Rounder'SmallUnknown--Benedict, Dr Ralph (Herb)--NR--
'Roundhouse Blues'LargeUnknownNear-WhiteJune into JulyMicheletti, Tom.1998
'Rowan My Boat'LargeHybridMed-LavenderJune into JulyBeilstein, Doug & Beilstein, Mardy.2018
'Roxton Falls'GiantUnknown--Bastille, Jocelyne--NR--
'Royal Quilt'LargeHybridNear-WhiteJune into JulyCaprice Farm Nursery & Rogers, Allan.1988
'Ruby Wedding'-Unknown--Jolliffe, Thomas--NR--
'Ruffian' (Arett)LargeUnknown--Arett, Anne.2009
'Ruffled Mouse Ears'MiniatureSportMed-LavenderJulyZilis, Mark.2011
'Ruffles Galore'MediumUnknown-June into JulyPowell, Loleta & Walek, Kevin.2009
'Ruffles n Ridges'GiantHybridMed-LavenderJune into JulyFox, Bob & Fox Hosta Farm.2018
'Rupiana'LargeHybrid--Balitewicz, Bob--NR--
'Russell Square'MediumUnknown--Crockett, Clyde--NR--
'Rusty's Wave'GiantUnknown--Rouillier, Denis--NR--
'Ruth'MediumSportPale-LavenderJune into JulySchwarz, Jim & Schwarz, Karen.2014
'Ryan's Big One'GiantHybridNear-WhiteJune into JulyEnglerth, Lawrence & Ryan (Unknown).1982
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