Cultivar NamePlant SizeLeaf ColorVariegationVar ColorOriginFlower ColorSeasonSourceRegistered
'Ralph'LargeBlue/GreenMedialWhiteUnknownNear-WhiteJulyO'Harra, Russ--NR--
'Rambunctious'GiantBlue/Green -UnknownNear-WhiteJulyStruhar, Bill.2018
'Ready Eddy'SmallBlue/Green -Unknown--Benedict, Dr Ralph (Herb)--NR--
'Richland Blue'LargeBlue/Green -UnknownNear-WhiteJune into JulyWade, Van.2007
'Ripped'LargeBlue/Green -UnknownPale-LavenderJulySoules, Marjorie & Goodenough, Rick--NR--
'Ripple Effect'SmallMed-GreenMedialWhiteNat-SportPale-LavenderJuly into AugustWalters Gardens--NR--
'Rippled Treasure'MediumMed-Green -Hybrid-June into JulyZilis, Mark.2010
'River City Blues'LargeBlue/Green -UnknownPale-LavenderJune into JulyZilis, Mark & Ankney, Barry.2018
'Rock of Gibralter'LargeBlue/Green -Nat-Sport-June into JulyZilis, Mark.2010
'Rock'n'Roll Heart'LargeBlue/Green -Unknown--Port, Linda--NR--
'Rosedale John Stratton'MediumBlue/Green -Hybrid--Hadrava, Jerry.1999
'Ruffled Mouse Ears'MiniatureBlue/Green -Nat-SportMed-LavenderJulyZilis, Mark.2011
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