Cultivar NamePlant SizeLeaf ColorVariegationVar ColorOriginFlower ColorSeasonSourceRegistered
'Redon Bleu'LargeBlue/Green--Unknown--Livingston, Ron--NR--
'Rembrandt Blue'LargeBlue/Green--HybridNear-WhiteJune into JulyMoldovan, Steve.1983
'Rhapsody in Blue'MediumDark-Green--HybridLight-PurpleAugust to OctoberBenedict, Dr Ralph (Herb).1996
'Rhino Blue'LargeBlue/Green--Nat-SportNear-WhiteJune into JulyRawson, Don.2010
'Rhubarb Blue'LargeBlue/Green--Unknown--Tompkins, Cynthia--NR--
'Richland Blue'LargeBlue/Green--UnknownNear-WhiteJune into JulyWade, Van.2007
'Richmond Blue'LargeBlue/Green--TC SportNear-WhiteJune into JulyZumbar, Wm & Walek, Kevin.2009
'Rippled Blue Circles'LargeBlue/Green--Hybrid--Summers, Alex--NR--
'Rock Garden Blue'LargeBlue/Green--Unknown--Tompkins, Chet--NR--
'Rocknoll Blue Dwarf'MiniatureBlue/Green--Unknown-AugustSaur, B. & Ruh, Peter.1996
'Rosedale Mr. Blue Jeans'LargeBlue/Green--HybridPure-WhiteJulyHadrava, Jerry.1999
'Rusty's Blue Star'MiniatureMed-Green--Unknown--Rouillier, Denis--NR--
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