| No. | Medium Size Hostas | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
|
1
| 'L'lle d'Orleans' | Light-Green | | | Unknown | Near-White | Unknown | Bastille, Jocelyne | --NR-- |
|
2
| 'O Kanzashi' | Med-Green | | | Sport | Light-Purple | Unknown | Unknown | --NR-- |
|
3
| 'Oberland Blue Dimension' | Blue/Green | | | Hybrid | Unknown | Unknown | Rank, Stefan | --NR-- |
|
4
| 'Oberland Darkness' | Dark-Green | | | Hybrid | Unknown | Unknown | Rank, Stefan | --NR-- |
|
5
| 'Oberland Spring Air' | Med-Green | Medial | White | Sport | Pure-White | July to August | Rank, Stefan | .2013 |
|
6
| 'Oberland Thin Line' | Blue/Green | Marginal | Yellow | Sport | Pale-Lavender | July to August | Rank, Stefan | --NR-- |
|
7
| 'Obi-Wan Kenobi' | Med-Green | Medial | Yellow | Nat-Sport | Light-Purple | August | Vandekinderen, Gino | --NR-- |
|
8
| 'Obsession' | Med-Green | Marginal | Greenish White | Sport | Light-Purple | August | Avent, Tony | .1998 |
|
9
| 'Ocean Isle Blue' | Blue/Green | | | Unknown | Unknown | Unknown | Chopko, Dave | --NR-- |
|
10
| 'Ocean Isle Gold Dust' | Light-Green | Medial | Yellow | Sport | Med-Lavender | July to August | Chopko, Dave | --NR-- |
|
11
| 'Ocean Isle Tide Line' | Dark-Green | Medial | White | Unknown | Unknown | Unknown | Chopko, Dave | --NR-- |
|
12
| 'Ocean Isle Tie Dye' | Yellow | Medial | Green | Sport | Pale-Lavender | June | Chopko, Dave | --NR-- |
|
13
| 'Ocean Isle Tornado' | Med-Green | Medial | White | Sport | Med-Lavender | July to August | Chopko, Dave | --NR-- |
|
14
| 'Ocean Isle Twist' | Dark-Green | Medial | White | Sport | Pale-Lavender | July to August | Chopko, Dave | --NR-- |
|
15
| 'October Fest' | Blue/Green | Marginal | Yellow | TC Sport | Light-Purple | June to July | Van den Top, Jan | --NR-- |
|
16
| 'October Sky' | Blue/Green | | | Hybrid | Near-White | August to September | Dean, Don | .2008 |
|
17
| 'Odd Ball' | Blue/Green | | | Hybrid | Near-White | July | Benedict, Dr Ralph (Herb) | .1995 |
|
18
| 'Odd Goddess' | Med-Green | | | Hybrid | Pale-Lavender | June to July | Kwick, Charles | .2017 |
|
19
| 'Oddity Prize' | Yellow | Medial | White | Unknown | Unknown | Unknown | Meyer, Bill | --NR-- |
|
20
| 'Oder' | Blue/Green | | | Unknown | Med-Lavender | July to August | Klose, Heinz | --NR-- |
|
21
| 'Odyssey' | Dark-Green | Streaked | Speckles | Hybrid | Unknown | July | Arnold, Beth | .1999 |
|
22
| 'Oga' | Med-Green | | | Hybrid | Med-Lavender | August | Unknown | --NR-- |
|
23
| 'Ogon Amagi Iwa' | Dark-Green | | | Sport | Light-Purple | September | Unknown & Walek, Kevin & The American Hosta Society | .2009 .2018 |
|
24
| 'Ogon Baran' | Yellow | | | Hybrid | Light-Purple | July | Unknown | --NR-- |
|
25
| 'Ogon Iwa' | Yellow | | | Unknown | Med-Lavender | August to September | Unknown | --NR-- |
|
26
| 'Ogon Kanzashi' | Yellow | | | Hybrid | Deep-Purple | June to July | Unknown | --NR-- |
|
27
| 'Ogon Oba' | Yellow | | | Sport | Pale-Lavender | July | Unknown | --NR-- |
|
28
| 'Ogon Sagae' | Yellow | | | Unknown | Pale-Lavender | July to August | Unknown | --NR-- |
|
29
| 'Ogon Setouchi' | Yellow | | | Sport | Unknown | Unknown | Unknown | --NR-- |
|
30
| 'Ogon Tsushima' | Yellow | | | Unknown | Light-Purple | July to August | Unknown & Ruh, Peter | .2002 .2018 |
|
31
| 'Ogon Urajiro' | Yellow | | | Unknown | Unknown | Unknown | Unknown | --NR-- |
|
32
| 'Oh Audrey' | Light-Green | Marginal | White | Sport | Pure-White | June to July | Silvers, Bill | .2013 |
|
33
| 'Oh Cindy' | Light-Green | | | Sport | Pale-Lavender | July | Benedict, Dr Ralph (Herb) | --NR-- |
|
34
| 'Oh Henry' | Blue/Green | Streaked | Yellow | Unknown | Unknown | Unknown | Unknown | --NR-- |
|
35
| 'Oh My Heart' | Med-Green | | | Unknown | Light-Purple | July | Lydell, Ransom | .2001 |
|
36
| 'Oh! Susanna' | Blue/Green | | | Hybrid | Med-Lavender | June to July | Reuter, Laurence & Gilligan, Madelon | .2015 |
|
37
| 'Ohh! Alpha' | Yellow | | | Unknown | Unknown | Unknown | Schulz, Ed | .2009 |
|
38
| 'Ohh! Blue Granite' | Blue/Green | | | Unknown | Near-White | June to July | Schulz, Ed | .2018 |
|
39
| 'Ohh! Richland Reward' | Yellow | Marginal | White | TC Sport | Pale-Lavender | July to August | Schulz, Ed | --NR-- |
|
40
| 'Ohh! Tut's Treasure' | Dark-Green | Marginal | Yellow | Sport | Near-White | June to July | Schulz, Ed | --NR-- |
|
41
| 'Ohh! Ultra Aqua' | Blue/Green | | | Unknown | Unknown | Unknown | Schulz, Ed | --NR-- |
|
42
| 'Ohh! Viola' | Yellow | | | Unknown | Near-White | June to July | Schulz, Ed | .2015 |
|
43
| 'Ohio River' | Med-Green | | | Hybrid | Unknown | Unknown | Beilstein, Doug & Malloy, Alex | --NR-- |
|
44
| 'OHS Bryan's Blue' | Blue/Green | | | Hybrid | Unknown | Unknown | Ontario Hosta Society | --NR-- |
|
45
| 'OHS Butter Pat' | Unknown | | | Hybrid | Unknown | Unknown | Ontario Hosta Society | --NR-- |
|
46
| 'OHS Juno' | Blue/Green | | | Sport | Pale-Lavender | July to August | Ontario Hosta Society | --NR-- |
|
47
| 'OHS Love in the Mist' | Blue/Green | Medial | White | TC Sport | Near-White | June to July | Lasek, Robert & Ontario Hosta Society | .2008 |
|
48
| 'OHS Margot's Delight' | Blue/Green | | | Sport | Pale-Lavender | July to August | Ontario Hosta Society | --NR-- |
|
49
| 'Oil Paint' | Dark-Green | Streaked | Yellow | Hybrid | Pale-Lavender | July to August | Van Eechaute, Danny | .2013 |
|
50
| 'Ojibway' | Blue/Green | | | Unknown | Unknown | Unknown | Wade, Van | --NR-- |
|
51
| 'Okaydokey' | Yellow | Marginal | Dark Green | Sport | Pale-Lavender | July to August | Walters Gardens & Walek, Kevin & The American Hosta Society | .2009 |
|
52
| 'Okeanos' | Dark-Green | Streaked | White | Unknown | Unknown | Unknown | Leuckx, Bart | --NR-- |
|
53
| 'Okefenokee' | Med-Green | Marginal | Yellow | Sport | Pale-Lavender | July to August | Benedict, Dr Ralph (Herb) & Walek, Kevin & The American Hosta Society | .2009 |
|
54
| 'Okukuji Nakafu Iwa' | Dark-Green | Medial | Yellow | Nat-Sport | Unknown | Unknown | Hisashi | --NR-- |
|
55
| 'Old Black Magic' | Dark-Green | | | Hybrid | Pale-Lavender | July | Elslager, Ed | .1999 |
|
56
| 'Old Blue Eyes' | Blue/Green | | | Unknown | Pale-Lavender | July | Goodwin, Randy | .2021 |
|
57
| 'Old Gold Edge' | Dark-Green | Marginal | Yellow | Unknown | Unknown | Unknown | Tompkins, Cynthia | --NR-- |
|
58
| 'Olive Branch' | Med-Green | Medial | Yellow | TC Sport | Pale-Lavender | July | Moldovan, Steve & Ruh, Peter & Ruh, Jean | .2008 |
|
59
| 'Olive Oil' | Yellow | | | Hybrid | Pale-Lavender | Unknown | Dishon, Jim | .1996 |
|
60
| 'Oliver Garden' | Med-Green | Streaked | White | Unknown | Unknown | Unknown | Unknown | --NR-- |
|
61
| 'Olivia' | Blue/Green | | | Unknown | Near-White | Unknown | Schwarz, Jim | --NR-- |
|
62
| 'Olympic Fab Five' | Yellow | | | Unknown | Unknown | July to August | Freeman, Franc | .2012 |
|
63
| 'Olympic Glacier' | Dark-Green | Marginal | Yellow | Sport | Med-Lavender | July to August | Naylor Creek Nursery | .2005 |
|
64
| 'Olympic Gold' | Yellow | | | Unknown | Near-White | July to August | Banyai, Pauline | .1986 |
|
65
| 'Olympic Gold Medal' | Yellow | | | Sport | Pale-Lavender | July to August | Fransen, Marco & Naylor Creek Nursery | --NR-- |
|
66
| 'Olympic Magic' | Light-Green | Streaked | Speckles | Sport | Pale-Lavender | July | Naylor Creek Nursery | --NR-- |
|
67
| 'Olympic Silver Medal' | Blue/Green | | | Sport | Pale-Lavender | July to August | Fransen, Marco & Naylor Creek Nursery | --NR-- |
|
68
| 'Olympic Sunrise' | Blue/Green | Medial | Yellow | Sport | Pale-Lavender | July to August | Naylor Creek Nursery | .2005 |
|
69
| 'Olympic Twilight' | Blue/Green | Marginal | Yellow | Sport | Pale-Lavender | July to August | Naylor Creek Nursery | --NR-- |
|
70
| 'On Fire' | Blue/Green | Streaked | Yellow | TC Sport | Light-Purple | July to August | Zilis, Mark | .2011 |
|
71
| 'On the Border' | Med-Green | Marginal | White | Hybrid | Pale-Lavender | August | Beilstein, Doug | .2007 |
|
72
| 'On the Edge' | Light-Green | Marginal | Blue-Green | Sport | Near-White | June | Scolnik, Patricia | --NR-- |
|
73
| 'On the Marc' | Med-Green | Medial | Yellow | Sport | Light-Purple | August | Laviana, Marc & Malloy, Alex | .1999 |
|
74
| 'Once upon a Time' | Med-Green | Marginal | White | Hybrid | Near-White | August | Wilkins, Dr Jim & Wilkins, Sandy | .2002 |
|
75
| 'One Fine Day' | Med-Green | Marginal | Yellow | Hybrid | Near-White | June to July | Ward, Dr Dick & Ward, Jane | .2012 |
|
76
| 'One Man's Treasure' | Dark-Green | | | Sport | Light-Purple | August to September to October | Benedict, Dr Ralph (Herb) & Solberg, Robert | .1999 |
|
77
| 'Oneida' | Med-Green | | | Unknown | Unknown | Unknown | Wade, Van | --NR-- |
|
78
| 'Only Time' | Yellow | | | Hybrid | Med-Lavender | Unknown | Van den Top, Jan | --NR-- |
|
79
| 'Only You' | Med-Green | Marginal | White | Hybrid | Unknown | Unknown | Ward, Dr Dick & Ward, Jane | .2012 |
|
80
| 'Onoda Type II' | Dark-Green | | | Unknown | Unknown | Unknown | Onoda | --NR-- |
|
81
| 'Ooh La La' | Blue/Green | Medial | Yellow | Hybrid | Light-Purple | July | Elslager, Ed | .2000 |
|
82
| 'Ooshima-jishi' | Med-Green | Medial | Yellow | Unknown | Unknown | Unknown | Unknown | --NR-- |
|
83
| 'Ophir' | Light-Green | | | Unknown | Pale-Lavender | Unknown | Fischer, Dr Ulrich | --NR-- |
|
84
| 'Opipara' | Med-Green | Marginal | Yellow | Unknown | Pale-Lavender | July to August | Maekawa, Dr Fumio & The American Hosta Society | .2002 |
|
85
| 'Opipara Koriyama' | Med-Green | Marginal | White | Unknown | Light-Purple | August | Unknown | --NR-- |
|
86
| 'Oplosa' | Blue/Green | Marginal | Creamy White | Unknown | Unknown | Unknown | Unknown | --NR-- |
|
87
| 'Orange Crush' | Med-Green | Marginal | Creamy White | Hybrid | Pale-Lavender | July | Elslager, Ed | .2000 |
|
88
| 'Orange Slices' | Yellow | | | TC Sport | Pale-Lavender | July to August | Zilis, Mark | .2003 |
|
89
| 'Orange Star' | Yellow | | | Sport | Pale-Lavender | July to August | Van den Top, Jan | --NR-- |
|
90
| 'Oreo Cream' | Dark-Green | Medial | White | Sport | Pale-Lavender | July to August | Ziarek, Ken | --NR-- |
|
91
| 'Oriana' | Yellow | | | Sport | Pale-Lavender | July to August | Smith, Eric | --NR-- |
|
92
| 'Orinoco Flow' | Med-Green | | | Hybrid | Pale-Lavender | July to August | Cross, Peter | .2002 |
|
93
| 'Orphan Child' | Med-Green | | | Unknown | Light-Purple | June | Banyai, Pauline & DaPra, Sarah | .2000 |
|
94
| 'Orphan Train Ruffian' | Dark-Green | | | Hybrid | Pale-Lavender | July to August | Kwick, Charles | .2017 |
|
95
| 'Orphan Train Twins' | Dark-Green | | | Hybrid | Pale-Lavender | July | Kwick, Charles | .2021 |
|
96
| 'Oshima Silk' | Med-Green | Marginal | White | Hybrid | Light-Purple | August to September | Shimizu, Toshirou & Zilis, Mark | .2009 |
|
97
| 'Osiris Folichon' | Med-Green | | | Unknown | Pale-Lavender | August | Fafard, Serge | --NR-- |
|
98
| 'Osiris Insomniaque' | Med-Green | Streaked | Yellow | Unknown | Unknown | Unknown | Fafard, Serge | --NR-- |
|
99
| 'Osiris Pacha' | Med-Green | Marginal | Yellow | Unknown | Unknown | Unknown | Fafard, Serge | --NR-- |
|
100
| 'Osiris Prestige' | Dark-Green | Medial | White | Unknown | Pale-Lavender | Unknown | Fafard, Serge | --NR-- |
|
101
| 'Osprey' | Blue/Green | | | Unknown | Pure-White | June to July | Smith, Eric & British Hosta and Hemerocallis Society | .1988 |
|
102
| 'Otome-no-Ka' | Dark-Green | | | Unknown | Light-Purple | August | Watanabe, Kenji & Ruh, Peter | .2002 |
|
103
| 'Our Child' | Dark-Green | Marginal | Yellow | Unknown | Unknown | Unknown | Unknown | --NR-- |
|
104
| 'Out of This World' | Dark-Green | | | Hybrid | Light-Purple | June | Goodwin, Randy | .2020 |
|
105
| 'Outer Limits' | Med-Green | Medial | Speckles | Sport | Pale-Lavender | July to August | Bennerup, Pierre | .2000 |
|
106
| 'Ovation' | Yellow | | | Hybrid | Pale-Lavender | July | Fafard, Serge | --NR-- |
|
107
| 'Over the Moon' | Med-Green | Marginal | White | Hybrid | Unknown | June to July | Ward, Dr Dick & Ward, Jane | .2010 |
|
108
| 'Over the Waves' | Blue/Green | | | Unknown | Unknown | August to September | Benedict, Dr Ralph (Herb) & Kuenster, Rod | .2010 |
|
109
| 'Owens Outrage' | Light-Green | | | Unknown | Med-Lavender | Unknown | Moore, Jeff | --NR-- |
|
110
| 'Oxheart' | Med-Green | | | Hybrid | Pale-Lavender | June to July | Minks, Eldren | .1976 |
|
111
| 'Oyo Como Va' | Med-Green | | | Unknown | Unknown | Unknown | Bastille, Jocelyne | --NR-- |
|
112
| 'Oyster Bay' | Blue/Green | Marginal | Yellow | Nat-Sport | Med-Lavender | August | Solberg, Robert | --NR-- |
|
113
| 'Oyster Crackers' | Unknown | | | Unknown | Unknown | Unknown | Ziarek, Ken | --NR-- |
|
114
| 'Ozark Welcome' | Light-Green | Medial | Yellow | Sport | Pale-Lavender | June to July | Helsley, Calvin | .2004 |
|
115
| 'Oze Shirobana Mizu' | Med-Green | | | Sport | Light-Purple | August to September to October | Unknown | --NR-- |
|
116
| 'Ozzfest' | Med-Green | Streaked | White | Sport | Near-White | July | Zilis, Mark | --NR-- |
|