| No. | Cultivar Name | Leaf Color | Plant Size | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
|
1
| 'L'lle d'Orleans' | Light-Green | Medium | | | Unknown | Near-White | Unknown | Bastille, Jocelyne | --NR-- |
|
2
| 'Oberland Advanced Technology' | Light-Green | Large | Marginal | White | Unknown | Pale-Lavender | July to August | Rank, Stefan | .2013 |
|
3
| 'Ocean Isle Gold Dust' | Light-Green | Medium | Medial | Yellow | Sport | Med-Lavender | July to August | Chopko, Dave | --NR-- |
|
4
| 'October Skies' | Light-Green | Large | | | Unknown | Unknown | Unknown | Bemis, Royall | --NR-- |
|
5
| 'Odo' | Light-Green | Small | Marginal | Dark Green | Unknown | Unknown | Unknown | Dupre, Dirk | --NR-- |
|
6
| 'Ogon Hime' (Sieboldii) | Light-Green | Unknown | | | Sport | Unknown | Unknown | Unknown | --NR-- |
|
7
| 'Ogon Hime Tokudama' | Light-Green | Small | | | Unknown | Pale-Lavender | June to July | Unknown & Ruh, Peter | .2002 .2018 |
|
8
| 'Ogon Tachi' | Light-Green | Large | | | Unknown | Deep-Purple | August | Unknown & Ruh, Peter | .2002 .2018 |
|
9
| 'Oh Audrey' | Light-Green | Medium | Marginal | White | Sport | Pure-White | June to July | Silvers, Bill | .2013 |
|
10
| 'Oh Cindy' | Light-Green | Medium | | | Sport | Pale-Lavender | July | Benedict, Dr Ralph (Herb) | --NR-- |
|
11
| 'Oh My Darling' | Light-Green | Small | | | Unknown | Unknown | Unknown | Unknown | --NR-- |
|
12
| 'Old Ironsides' | Light-Green | Giant | | | Sport | Med-Lavender | July | Summers, Alex | --NR-- |
|
13
| 'Olympic Magic' | Light-Green | Medium | Streaked | Speckles | Sport | Pale-Lavender | July | Naylor Creek Nursery | --NR-- |
|
14
| 'Omatsu-san Nishiki' | Light-Green | Small | | | Unknown | Light-Purple | Unknown | Ruh, Peter | .2002 .2018 |
|
15
| 'On Parade' | Light-Green | Miniature | Medial | White | Hybrid | Med-Lavender | July | Malloy, Alex | .2003 |
|
16
| 'On the Edge' | Light-Green | Medium | Marginal | Blue-Green | Sport | Near-White | June | Scolnik, Patricia | --NR-- |
|
17
| 'Ophir' | Light-Green | Medium | | | Unknown | Pale-Lavender | Unknown | Fischer, Dr Ulrich | --NR-- |
|
18
| 'Orphan Train Rider' | Light-Green | Small | | | Unknown | Med-Lavender | July to August | Kwick, Charles | .2017 |
|
19
| 'Osiris Illumination' | Light-Green | Giant | | | Unknown | Unknown | Unknown | Fafard, Serge | --NR-- |
|
20
| 'Osiris Mignonne' | Light-Green | Small | Marginal | White | Unknown | Unknown | Unknown | Fafard, Serge | --NR-- |
|
21
| 'Osiris Mirage' | Light-Green | Small | Marginal | White | Unknown | Unknown | Unknown | Fafard, Serge | --NR-- |
|
22
| 'Out of Print' | Light-Green | Small | Medial | Yellow | Unknown | Unknown | Unknown | Van Eechaute, Danny | --NR-- |
|
23
| 'Outer Space' | Light-Green | Small | Marginal | White | Sport | Pale-Lavender | July | Malloy, Alex | .2003 |
|
24
| 'Outside' | Light-Green | Small | Marginal | Yellow | Unknown | Unknown | Unknown | Goodwin, Randy | --NR-- |
|
25
| 'Over Yu Wu' | Light-Green | Giant | | | Hybrid | Near-White | July to August | Daughenbaugh, Walt | .2021 |
|
26
| 'Owens Outrage' | Light-Green | Medium | | | Unknown | Med-Lavender | Unknown | Moore, Jeff | --NR-- |
|
27
| 'Ozark Welcome' | Light-Green | Medium | Medial | Yellow | Sport | Pale-Lavender | June to July | Helsley, Calvin | .2004 |
|