Cultivar NamePlant SizeLeaf ColorVariegationVar ColorOriginFlower ColorSeasonSourceRegistered
'Odina'LargeBlue/Green--Unknown--Wade, Van--NR--
'Oglala'GiantBlue/Green--Unknown--Wade, Van--NR--
'Ohio Blue'-Blue/Green--Unknown--Wade, Van--NR--
'Ojibway'MediumBlue/Green--Unknown--Wade, Van--NR--
'Old Hump Back'LargeDark-Green--HybridPale-LavenderJune into JulyWade, Van.1999
'Old Rough House'GiantBlue/Green--Unknown--Wade, Van--NR--
'Olga Gibosa'LargeMed-Green--UnknownLight-PurpleJuly into AugustWade, Van--NR--
'Omaha'LargeBlue/Green--Unknown--Wade, Van--NR--
'Oneida'MediumMed-Green--Unknown--Wade, Van--NR--
'Ontario Blue'LargeBlue/Green--Unknown--Wade, Van--NR--
'Open Hearted'GiantBlue/Green--Unknown-JulyWade, Van.1999
'Oriana'-Yellow--Nat-Sport--Wade, Van--NR--
'Ottawa'LargeMed-Green--Unknown--Wade, Van--NR--

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