No.Cultivar NameSourcePlant SizeLeaf ColorVariegationVar ColorOriginFlower ColorSeasonRegistered
1 'Oceans Blue'Schmidt, BevieLargeBlue/Green--Unknown-July into August.2009
2 'Ocean's Fury'Rawson, DonLargeBlue/Green--Unknown----NR--
3 'Odd Ball'Benedict, Dr Ralph (Herb)MediumBlue/Green--HybridNear-WhiteJuly.1995
4 'Oh Cindy'Benedict, Dr Ralph (Herb)MediumLight-Green--SportPale-LavenderJuly--NR--
5 'Oh to Be Fourteen'Livingston, RonLargeDark-Green--Unknown----NR--
6 'Oh! Them Golden Slippers'Elslager, EdLargeYellow--HybridLight-PurpleJuly.2002
7 'Okaydokey'Walters Gardens & Walek, KevinMediumYellowMarginalDark GreenSportPale-LavenderJuly into August.2009
8 'Okefenokee'Benedict, Dr Ralph (Herb) & Walek, KevinMediumMed-GreenMarginalYellowSportPale-LavenderJuly into August.2009
9 'Old Black Magic'Elslager, EdMediumDark-Green--HybridPale-LavenderJuly.1999
10 'Old Frosty'Rawson, DonLargeBlue/Green--Unknown----NR--
11 'Olive Oil'Dishon, JimMediumYellow--HybridPale-Lavender-.1996
12 'Olympic Gold'Banyai, PaulineMediumYellow--UnknownNear-WhiteJuly into August.1986
13 'On Golden Pond'Elslager, EdGiantDark-GreenMarginalYellowHybridNear-WhiteJuly.2005
14 'Once upon a Time'Wilkins, Dr Jim & Wilkins, SandyMediumMed-GreenMarginalWhiteHybridNear-WhiteAugust.2002
15 'One Last Dance'Hansen, Hans & Walters GardensLargeDark-GreenMarginalYellowTC SportNear-WhiteJuly--NR--
16 'One Man's Treasure'Benedict, Dr Ralph (Herb) & Solberg, RobertMediumDark-Green--SportLight-PurpleAugust to October.1999
17 'Ooh La La'Elslager, EdMediumBlue/GreenMedialYellowHybridLight-PurpleJuly.2000
18 'Orange Crush'Elslager, EdMediumMed-GreenMarginalCreamy WhiteHybridPale-LavenderJuly.2000
19 'Orphan Child'Banyai, Pauline & DaPra, SarahMediumMed-Green--UnknownLight-PurpleJune.2000
20 'Out of the Blue'Elslager, EdGiantBlue/GreenStreakedWhiteHybridPale-LavenderJuly.2003
21 'Outrageous'Benedict, Dr Ralph (Herb) & Walek, KevinLargeDark-GreenStreakedWhiteHybridPale-LavenderJuly.2009
22 'Outrigger'Elslager, EdLargeMed-GreenStreakedSpecklesHybridPale-LavenderJuly.2000
23 'Over the Rainbow'Elslager, EdLargeMed-GreenStreakedSpecklesHybridNear-WhiteJune into July.2005
24 'Over the Waves'Benedict, Dr Ralph (Herb) & Kuenster, RodMediumBlue/Green--Unknown-August to September.2010

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