| No. | Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Season | Source | Registered |
|
1
| 'Oakview' | Small | Blue/Green | | - | Unknown | June into July | Stone, David & Ruh, Peter | .1987 |
|
2
| 'Oasis' (Ward) | Large | Blue/Green | | - | Unknown | June into July | Ward, Dr Dick & Ward, Jane | .2012 |
|
3
| 'Oberland Advanced Technology' | Large | Light-Green | Marginal | White | Unknown | July into August | Rank, Stefan | .2013 |
|
4
| 'Oberland Colourful Noise' | Large | Dark-Green | Streaked | White | Sport | July into August | Rank, Stefan | .2013 |
|
5
| 'Oberland Spring Air' | Medium | Med-Green | Medial | White | Sport | July into August | Rank, Stefan | .2013 |
|
6
| 'Oberland Thin Line' | Medium | Blue/Green | Marginal | Yellow | Sport | July into August | Rank, Stefan | --NR-- |
|
7
| 'Obscene Gesture' | Small | Med-Green | Streaked | White | TC Sport | July | Anderson, Jim | --NR-- |
|
8
| 'Occupy Wall Street' | Small | Blue/Green | Marginal | White | Unknown | July into August | Freeman, Franc | .2012 |
|
9
| 'Ocean Isle' | Large | Blue/Green | Marginal | Yellow | Sport | July | Chopko, Dave | .2006 |
|
10
| 'Ocean Isle Abracadabra' | Small | Yellow | Medial | Green | Sport | July | Chopko, Dave | --NR-- |
|
11
| 'Ocean Isle Gold' | Large | Med-Green | Marginal | Yellow | Unknown | June into July | Chopko, Dave | --NR-- |
|
12
| 'Ocean Isle Gold Dust' | Medium | Light-Green | Medial | Yellow | Sport | July into August | Chopko, Dave | --NR-- |
|
13
| 'Ocean Isle Tornado' | Medium | Med-Green | Medial | White | Sport | July into August | Chopko, Dave | --NR-- |
|
14
| 'Ocean Isle Twist' | Medium | Dark-Green | Medial | White | Sport | July into August | Chopko, Dave | --NR-- |
|
15
| 'Ocean Tide' | Large | Blue/Green | | - | Hybrid | June into July | Mondt, Manfred | --NR-- |
|
16
| 'Oceans Away' | Giant | Blue/Green | | - | Unknown | June into July | Hanson, Curt | --NR-- |
|
17
| 'Oceans Blue' | Large | Blue/Green | | - | Unknown | July into August | Schmidt, Bevie | .2009 |
|
18
| 'October Fest' | Medium | Blue/Green | Marginal | Yellow | TC Sport | June into July | Van den Top, Jan | --NR-- |
|
19
| 'Odd Ball' | Medium | Blue/Green | | - | Hybrid | July | Benedict, Dr Ralph (Herb) | .1995 |
|
20
| 'Odd Goddess' | Medium | Med-Green | | - | Hybrid | June into July | Kwick, Charles | .2017 |
|
21
| 'Ode To Joy' | Small | Med-Green | | - | Sport | July | Johnson, Greg | .2004 |
|
22
| 'Oder' | Medium | Blue/Green | | - | Unknown | July into August | Klose, Heinz | --NR-- |
|
23
| 'Odyssey' | Medium | Dark-Green | Streaked | Speckles | Hybrid | July | Arnold, Beth | .1999 |
|
24
| 'Ogon Baran' | Medium | Yellow | | - | Hybrid | July | Unknown | --NR-- |
|
25
| 'Ogon Hime Tokudama' | Small | Light-Green | | - | Unknown | June into July | Unknown & Ruh, Peter | .2002 .2018 |
|
26
| 'Ogon Kanzashi' | Medium | Yellow | | - | Hybrid | June into July | Unknown | --NR-- |
|
27
| 'Ogon Kuro' | Giant | Yellow | | - | Sport | July into August | Unknown | --NR-- |
|
28
| 'Ogon Murasaki' | Small | Yellow-Gold | | - | Sport | July | Unknown | |
|
29
| 'Ogon Oba' | Medium | Yellow | | - | Sport | July | Unknown | --NR-- |
|
30
| 'Ogon Otome' | Small | Yellow | | - | Hybrid | July | Unknown | --NR-- |
|
31
| 'Ogon Sagae' | Medium | Yellow | | - | Unknown | July into August | Unknown | --NR-- |
|
32
| 'Ogon Sudare' | Small | Yellow | | - | Unknown | July | Unknown & Ruh, Peter | .2002 .2018 |
|
33
| 'Ogon Tsushima' | Medium | Yellow | | - | Unknown | July into August | Unknown & Ruh, Peter | .2002 .2018 |
|
34
| 'Oh Audrey' | Medium | Light-Green | Marginal | White | Sport | June into July | Silvers, Bill | .2013 |
|
35
| 'Oh by Gosh' | Large | Med-Green | Marginal | Yellow | Sport | July | Rudolph, Thelma & Ruh, Peter | .2000 |
|
36
| 'Oh Charlie' | Large | Med-Green | Marginal | Yellow | TC Sport | July | Ziarek, Ken | --NR-- |
|
37
| 'Oh Cindy' | Medium | Light-Green | | - | Sport | July | Benedict, Dr Ralph (Herb) | --NR-- |
|
38
| 'Oh My Heart' | Medium | Med-Green | | - | Unknown | July | Lydell, Ransom | .2001 |
|
39
| 'Oh! Susanna' | Medium | Blue/Green | | - | Hybrid | June into July | Reuter, Laurence & Gilligan, Madelon | .2015 |
|
40
| 'Oh! Them Golden Slippers' | Large | Yellow | | - | Hybrid | July | Elslager, Ed | .2002 |
|
41
| 'O'Harra' | Small | Yellow | | - | Unknown | July | O'Harra, Russ & Walek, Kevin & The American Hosta Society | .2009 |
|
42
| 'Ohh! Amber' | Small | Dark-Green | Marginal | White | Hybrid | July into August | Schultz, Ed | .2021 |
|
43
| 'Ohh! Blue Beacon' | Small | Blue/Green | | - | Unknown | June into July | Schulz, Ed | .2013 |
|
44
| 'Ohh! Blue Bounty' | Large | Blue/Green | | - | Unknown | June into July | Schulz, Ed | .2011 |
|
45
| 'Ohh! Blue Finale' | Large | Blue/Green | | | Unknown | June into July | Schulz, Ed | .2021 |
|
46
| 'Ohh! Blue Granite' | Medium | Blue/Green | | - | Unknown | June into July | Schulz, Ed | .2018 |
|
47
| 'Ohh! Charlotte!' | Large | Yellow | | - | Unknown | June into July | Schulz, Ed | .2012 |
|
48
| 'Ohh! Clare' | Large | Yellow | | - | Unknown | July into August | Schulz, Ed | .2016 |
|
49
| 'Ohh! Elvira' | Large | Yellow | | - | Unknown | July into August | Schulz, Ed | .2016 |
|
50
| 'Ohh! His Blue Eyes' | Large | Blue/Green | | - | Unknown | June into July | Schulz, Ed | .2017 |
|
51
| 'Ohh! Jewell' | Large | Yellow | | - | Unknown | June into July | Schulz, Ed | .2017 |
|
52
| 'Ohh! Lovilia' | Large | Yellow | | - | Unknown | June into July | Schulz, Ed | .2015 |
|
53
| 'Ohh! Powder River Blue' | Large | Blue/Green | | - | Unknown | June into July | Schulz, Ed | .2020 |
|
54
| 'Ohh! Richland Reward' | Medium | Yellow | Marginal | White | TC Sport | July into August | Schulz, Ed | --NR-- |
|
55
| 'Ohh! Tut's Treasure' | Medium | Dark-Green | Marginal | Yellow | Sport | June into July | Schulz, Ed | --NR-- |
|
56
| 'Ohh! Viola' | Medium | Yellow | | - | Unknown | June into July | Schulz, Ed | .2015 |
|
57
| 'OHS Juno' | Medium | Blue/Green | | - | Sport | July into August | Ontario Hosta Society | --NR-- |
|
58
| 'OHS Love in the Mist' | Medium | Blue/Green | Medial | White | TC Sport | June into July | Lasek, Robert & Ontario Hosta Society | .2008 |
|
59
| 'OHS Margot's Delight' | Medium | Blue/Green | | - | Sport | July into August | Ontario Hosta Society | --NR-- |
|
60
| 'Oil Paint' | Medium | Dark-Green | Streaked | Yellow | Hybrid | July into August | Van Eechaute, Danny | .2013 |
|
61
| 'Okaydokey' | Medium | Yellow | Marginal | Dark Green | Sport | July into August | Walters Gardens & Walek, Kevin & The American Hosta Society | .2009 |
|
62
| 'Okefenokee' | Medium | Med-Green | Marginal | Yellow | Sport | July into August | Benedict, Dr Ralph (Herb) & Walek, Kevin & The American Hosta Society | .2009 |
|
63
| 'Old Bill' | Giant | Blue/Green | | - | Hybrid | June into July | Gilligan, Madelon | .2012 |
|
64
| 'Old Black Magic' | Medium | Dark-Green | | - | Hybrid | July | Elslager, Ed | .1999 |
|
65
| 'Old Blue Eyes' | Medium | Blue/Green | | | Unknown | July | Goodwin, Randy | .2021 |
|
66
| 'Old Coot' | Small | Dark-Green | | - | Hybrid | July | Johnson, Greg | .2004 |
|
67
| 'Old Glory' | Large | Yellow | Marginal | Blue-Green | Sport | June into July | Hansen, Hans & Shady Oaks Nursery | .1999 |
|
68
| 'Old Hump Back' | Large | Dark-Green | | - | Hybrid | June into July | Wade, Van | .1999 |
|
69
| 'Old Ironsides' | Giant | Light-Green | | - | Sport | July | Summers, Alex | --NR-- |
|
70
| 'Old Smoky' | Large | Med-Green | | - | Hybrid | June into July | McDonell, Harold | .2014 |
|
71
| 'Olga Gibosa' | Large | Med-Green | | - | Unknown | July into August | Wade, Van | --NR-- |
|
72
| 'Olive Branch' | Medium | Med-Green | Medial | Yellow | TC Sport | July | Moldovan, Steve & Ruh, Peter & Ruh, Jean | .2008 |
|
73
| 'Olive's Freckles' | Giant | Med-Green | | - | Unknown | July | Pauley, Olive | --NR-- |
|
74
| 'Olympic Edger' | Small | Med-Green | Marginal | Yellow | Sport | June into July | Naylor Creek Nursery | .1999 |
|
75
| 'Olympic Fab Five' | Medium | Yellow | | - | Unknown | July into August | Freeman, Franc | .2012 |
|
76
| 'Olympic Glacier' | Medium | Dark-Green | Marginal | Yellow | Sport | July into August | Naylor Creek Nursery | .2005 |
|
77
| 'Olympic Gold' | Medium | Yellow | | - | Unknown | July into August | Banyai, Pauline | .1986 |
|
78
| 'Olympic Gold Medal' | Medium | Yellow | | - | Sport | July into August | Fransen, Marco & Naylor Creek Nursery | --NR-- |
|
79
| 'Olympic Magic' | Medium | Light-Green | Streaked | Speckles | Sport | July | Naylor Creek Nursery | --NR-- |
|
80
| 'Olympic Silver Medal' | Medium | Blue/Green | | - | Sport | July into August | Fransen, Marco & Naylor Creek Nursery | --NR-- |
|
81
| 'Olympic Sunrise' | Medium | Blue/Green | Medial | Yellow | Sport | July into August | Naylor Creek Nursery | .2005 |
|
82
| 'Olympic Torch' | Large | Yellow | | - | Hybrid | July into August | Goodwin, Randy | .2009 |
|
83
| 'Olympic Twilight' | Medium | Blue/Green | Marginal | Yellow | Sport | July into August | Naylor Creek Nursery | --NR-- |
|
84
| 'On Fire' | Medium | Blue/Green | Streaked | Yellow | TC Sport | July into August | Zilis, Mark | .2011 |
|
85
| 'On Golden Pond' | Giant | Dark-Green | Marginal | Yellow | Hybrid | July | Elslager, Ed | .2005 |
|
86
| 'On Parade' | Miniature | Light-Green | Medial | White | Hybrid | July | Malloy, Alex | .2003 |
|
87
| 'One and Only' | Large | Yellow | | - | Hybrid | June into July | Ward, Dr Dick & Ward, Jane | .2015 |
|
88
| 'One Fine Day' | Medium | Med-Green | Marginal | Yellow | Hybrid | June into July | Ward, Dr Dick & Ward, Jane | .2012 |
|
89
| 'One Iota' | Small | Blue/Green | Marginal | White | TC Sport | July | Anderson, Jim | --NR-- |
|
90
| 'One Iota Supreme' | Small | Blue/Green | Streaked | White | Sport | July | Schwarz, Jim | --NR-- |
|
91
| 'One Last Dance' | Large | Dark-Green | Marginal | Yellow | TC Sport | July | Hansen, Hans & Walters Gardens | .2020 |
|
92
| 'One-trip Salad Bar' | Small | Dark-Green | Marginal | Yellow | Nat-Sport | July into August | Solberg, Robert | --NR-- |
|
93
| 'Ooh La La' | Medium | Blue/Green | Medial | Yellow | Hybrid | July | Elslager, Ed | .2000 |
|
94
| 'OOME' | Large | Blue/Green | Streaked | Speckles | Hybrid | July into August | Gussman, Christopher | .2009 |
|
95
| 'Opal Scepter' | Small | Yellow | Streaked | White | Sport | July | Meyer, Bill | --NR-- |
|
96
| 'Open Hearted' | Giant | Blue/Green | | - | Unknown | July | Wade, Van | .1999 |
|
97
| 'Opipara' | Medium | Med-Green | Marginal | Yellow | Unknown | July into August | Maekawa, Dr Fumio & The American Hosta Society | .2002 |
|
98
| 'Ops' | Small | Dark-Green | Medial | White | Hybrid | July | Malloy, Alex | .2001 |
|
99
| 'Oracle' | Giant | Med-Green | | - | Unknown | June into July | Ward, Dr Dick & Ward, Jane | .2003 |
|
100
| 'Orange Crush' | Medium | Med-Green | Marginal | Creamy White | Hybrid | July | Elslager, Ed | .2000 |
|
101
| 'Orange Joy' | Small | Yellow | | - | Hybrid | July | Carpenter, Kate | .1979 |
|
102
| 'Orange Marmalade' | Large | Med-Green | Medial | White | Sport | July into August | Solberg, Robert | .2002 |
|
103
| 'Orange Rose' | Small | Dark-Green | Medial | Yellow | Sport | June into July | McHugh, Ed | .2012 |
|
104
| 'Orange Slices' | Medium | Yellow | | - | TC Sport | July into August | Zilis, Mark | .2003 |
|
105
| 'Orange Star' | Medium | Yellow | | - | Sport | July into August | Van den Top, Jan | --NR-- |
|
106
| 'Oreo Cream' | Medium | Dark-Green | Medial | White | Sport | July into August | Ziarek, Ken | --NR-- |
|
107
| 'Oriana' | Medium | Yellow | | - | Sport | July into August | Smith, Eric | --NR-- |
|
108
| 'Orinoco Flow' | Medium | Med-Green | | - | Hybrid | July into August | Cross, Peter | .2002 |
|
109
| 'Orion's Belt' | Large | Blue/Green | | - | Hybrid | July | Ward, Dr Dick & Ward, Jane | .2003 |
|
110
| 'Orphan Annie' | Miniature | Med-Green | Marginal | White | Unknown | July | Unknown | --NR-- |
|
111
| 'Orphan Train Rider' | Small | Light-Green | | - | Unknown | July into August | Kwick, Charles | .2017 |
|
112
| 'Orphan Train Ruffian' | Medium | Dark-Green | | - | Hybrid | July into August | Kwick, Charles | .2017 |
|
113
| 'Orphan Train Twins' | Medium | Dark-Green | | | Hybrid | July | Kwick, Charles | .2021 |
|
114
| 'Osprey' | Medium | Blue/Green | | - | Unknown | June into July | Smith, Eric & British Hosta and Hemerocallis Society | .1988 |
|
115
| 'Otara's Angel' | Large | Dark-Green | Marginal | Yellow | Sport | June into July | Johns, Eddie | --NR-- |
|
116
| 'Otome-no-mai' | Miniature | Med-Green | Medial | White | Hybrid | July | Tanaka, Katsuyoshi | --NR-- |
|
117
| 'Out of the Blue' | Giant | Blue/Green | Streaked | White | Hybrid | July | Elslager, Ed | .2003 |
|
118
| 'Outer Limits' | Medium | Med-Green | Medial | Speckles | Sport | July into August | Bennerup, Pierre | .2000 |
|
119
| 'Outer Space' | Small | Light-Green | Marginal | White | Sport | July | Malloy, Alex | .2003 |
|
120
| 'Outhouse Delight' | Small | Med-Green | Streaked | Speckles | Hybrid | July | Avent, Tony | .1998 .1999 |
|
121
| 'Outrageous' | Large | Dark-Green | Streaked | White | Hybrid | July | Benedict, Dr Ralph (Herb) & Walek, Kevin & The American Hosta Society | .2009 |
|
122
| 'Outrageous Dragon' | - | Dark-Green | Streaked | White | Hybrid | July into August | Kuenster, Rod | .2010 |
|
123
| 'Outrigger' | Large | Med-Green | Streaked | Speckles | Hybrid | July | Elslager, Ed | .2000 |
|
124
| 'Ovalwood' | Large | Blue/Green | | - | Hybrid | July | Beilstein, Doug & Beilstein, Mardy | .2012 |
|
125
| 'Ovation' | Medium | Yellow | | - | Hybrid | July | Fafard, Serge | --NR-- |
|
126
| 'Over the Moon' | Medium | Med-Green | Marginal | White | Hybrid | June into July | Ward, Dr Dick & Ward, Jane | .2010 |
|
127
| 'Over the Rainbow' | Large | Med-Green | Streaked | Speckles | Hybrid | June into July | Elslager, Ed | .2005 |
|
128
| 'Over Yu Wu' | Giant | Light-Green | | | Hybrid | July into August | Daughenbaugh, Walt | .2021 |
|
129
| 'Owen Online' | Large | Dark-Green | Medial | Yellow | Sport | July | Snyder, Ron | .1998 |
|
130
| 'Oxheart' | Medium | Med-Green | | - | Hybrid | June into July | Minks, Eldren | .1976 |
|
131
| 'Oxymoron' | Small | Blue/Green | Marginal | White | Sport | July | Harle, Dennis | --NR-- |
|
132
| 'Ozark Welcome' | Medium | Light-Green | Medial | Yellow | Sport | June into July | Helsley, Calvin | .2004 |
|
133
| 'Ozzfest' | Medium | Med-Green | Streaked | White | Sport | July | Zilis, Mark | --NR-- |
|