A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
| Cultivar | Hyb/Y | Price | Size | Ht | Type | Season | Description |
| Oakes Love | Hansen '94 | 7 | 9 3/4" | 38" | E | MLa | Deep pink SPIDER, rose halo, gr. th. |
| *Oceans Eleven | Petit '04 | 50 | 5" | 20" | SE | M-Re | Cream, blue violet eye, gr.th., fragrant |
| *Octopus Hugs | Stamile '01 | 10 | 8" | 38" | E | E-Re | Red orange bitone UNF, light red sepals, frag. |
| Odd Ball | Benson '66 | 8 | 7" | 26" | D | MLa | Yellow & cinnamon bicolor |
| Ode To Spring | Kirchhoff '80 | 5 | 6" | 20" | E | EE-Re | Lavender, deeper halo |
| *O'Fallon | Whatley '86 | 5 | 5 1/2" | 25" | SE | M | Cream, gr. th. |
| Ogeechee Moon | Taylor '76 | Dis | 9" | 30" | E | M | Light pastel lavender pink blend, gr.th. |
| Oh Danny Boy | Kirchhoff '94 | 10 | 6 1/2" | 28" | SE | M-Re | Mauve DOUBLE, yel. gr. th. |
| Oklahoma Kicking Bird | Marley '87 | 15 | 9" | 28" | D | E-Re | SPIDERY mauve rose, light yel eye, gr. th. |
| *Olallie Double | Darrow '76 | 5/cl | 5" | 20" | D | M | Gold DOUBLE, tiny gr. th. |
| Old San Juan | Santa Lucia '98 | 15 | 6" | 24" | D | M | Cream peach, med. rose eye, gr. th. |
| *Olive Bailey Langdon | Munson '74 | 8 | 5" | 28" | SE | EM-Re | Purple, yel. gr. th. |
| *Oliver Billingslea | Grace '96 | 15 | 5 1/2" | 18" | D | EM-Re | Light apricot orange, gr. th., very frag. |
| *Olympic Showcase | Stamile '90 | 5 | 6 1/4" | 24" | SE | EM | Brilliant gold, gr. th. |
| *Omomuki | Stamile '91 | 6 | 5" | 26" | D | EM | Chartreuse yellow, gr. th. |
| *Once Upon A Dream | Bell '06 | 75 | 5 1/2" | 28" | E | M-Re | Coral pink, heavy ruffled gold edge, yel.th. |
| One Day Maybe | Carpenter, J. '99 | 8 | 5 1/2" | 26" | E | M-Re | Lavender purple, dark purp.eye, gr.th., fragrant |
| One Eye Willie | Herrington, T. '06 | 50 | 4" | 28" | SE | E-Re | Lavender pink, unusual purple eye, lg.yel.gr.th. |
| *One Step Beyond | Benz '95 | 7 | 6 1/2" | 32" | SE | M | Lavender rose pink, lime gr.th., fragrant |
| Only Yesterday | Wild '76 | 8 | 7" | 22" | D | EM | Pale orange, gold tinted pink |
| *On Silken Thread | Lambertson '98 | 6 | 9" | 36" | SE | M-Re | Med. orange crispate UNF, burnt or. eye/edge |
| *On The Double | Stamile '89 | 5 | 5 1/2" | 22" | D | MLa | Red DOUBLE, yel. gold th. |
| *On The Web | Lambertson '98 | 6 | 7" | 30" | SE | EM | Medium violet SPIDER, gr.th. |
| *On To Something | Grace '99 | Dis | 7" | 38" | E | EM-Re | Pastel lavender, patterned lav. eye, fragrant |
| Open Hearth | Lambert '76 | 5 | 9" | 26" | D | M | Red & copper UNF, ruby halo, gr. th. |
| *Open My Eyes | Grace '02 | 20 | 5 1/4" | 22" | E | E-Re | Light orange, dark purple eye & edge, yel. gr. th. |
| Opera News | Wild '76 | 5 | 5 1/2" | 24" | D | La | Pale orange & cream pink, gr. th. |
| Optical Delight | Guidry '82 | 5 | 6" | 18" | E | EE-Re | Cream pink, gr. th. |
| *ORANGE BLUSH | Netherton, J. '08 | 75 | 6" | 28" | SE | EM-Re | Soft orange, yel.gr.th., fragrant |
| *Orange Jade | Kirchhoff '94 | 5 | 5 3/4" | 22" | SE | MLa-Re | Medium tangerine, yel. gr. th. |
| Orange Velvet | Joiner '89 | 9 | 6 1/2" | 30" | SE | M-Re | Light orange, gr. th. |
| *Orange Vols | Oakes '81 | 5 | 6 1/2" | 24" | D | M-Re | Orange bitone |
| *Orchid Candy | Stamile '94 | 5 | 4 1/4" | 23" | D | EM-Re | Orchid lavender, dark purple eyezone |
| Orchid Moonrise | Roberts, N. '03 | 75 | 7" | 36" | D | E | Purple UNF, grey eye, yel.gr.th., nocturnal |
| *Orchid Waterfall | Stamile '04 | 35 | 10" | 40" | E | E-Re | Orchid SPIDER, lime gr.th. |
| *Oriental Dancer | Brown '94 | 5 | 5 1/2" | 28" | SE | EM | Yellow pink cream polychrome, lav.eye, gr.th. |
| *Oriental Opulence | Salter '92 | 5 | 5 1/2" | 28" | SE | EM | Yellow gold & amber peach blend, gr. th. |
| *Orlando Truffle | Kirchhoff '04 | Dis | 53/4" | 33" | E | E-Re | Saffron gold DOUBLE, orange red halo |
| *Ornamental Focus | Stamile '99 | 12 | 7" | 25" | E | EE-Re | Cream yellow, spiked burgundy eyezone |
| *Ottis' Magic | Houston '96 | Dis | 7" | 27" | SE | EM-Re | Lavender cream, gold eyezone, gr. th. |
| Our De De | Guidry '81 | 5 | 6 1/2" | 20" | E | EE-Re | Cream, gr. th. |
| Our Kirsten | Hansen, R. '91 | 5 | 6" | 26" | E | M-Re | Soft peachy pink |
| *Out In Style | Salter, E. '96 | 8 | 3 1/2" | 28" | SE | M-Re | Coral cinnamon blend, large gold edge |
| *Over The Edge | Salter '92 | 6 | 5 1/2" | 20" | SE | MLa-Re | Lavender blend, gold edged |
| *Over The Top | Stamile '01 | 15 | 8" | 28" | E | M-Re | Orchid pink DOUBLE, ruffled wire gold edge |