Cultivar NamePlant SizeLeaf ColorVariegationVar ColorOriginFlower ColorSeasonSourceRegistered
'Dale's Blue Gray'LargeBlue/Green--UnknownPale-LavenderJune into JulyMaroushek, Lillian & Snyder, Ron.1998
'Deep Blue Sea'LargeBlue/Green--HybridPale-LavenderJulySeaver, Charles.1994
'Deep Blue Star'MediumBlue/Green--UnknownMed-Lavender-Unknown--NR--
'Delaware Blue Hen'GiantBlue/Green--Unknown-June into JulyKruer, George.2009
'Devon Blue'MediumBlue/Green--UnknownPale-LavenderJuly into AugustSmith, Eric & Bowden, Roger and Ann.1988
'Dogtown Blue Prince'LargeBlue/GreenStreakedYellowUnknown--Klotz, Ruby--NR--
'Dorothy Benedict Blue'----Nat-Sport--Unknown--NR--
'Dorset Blue'SmallBlue/Green--UnknownPale-LavenderAugustSmith, Eric & Aden, Paul.1977
'Dorset Blue Streaked'MediumBlue/GreenStreakedWhiteNat-Sport--Fransen, Marco & Joyce--NR--
'Dream in Blue'MediumBlue/Green--HybridPale-Lavender-Anderson, Marlys--NR--
'Dress Blues'MediumBlue/GreenMarginalYellowHybridPale-LavenderAugustZumbar, Wm.1995
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