| No. | Hosta Cultivar | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
|
1
| 'Red Cadet' | Medium | Dark-Green | - | - | Hybrid | Pale-Lavender | August to October | Van Eechaute, Danny | .2005 |
|
2
| 'Red Cloud' | Small | Blue/Green | Streaked | White | Hybrid | Pale-Lavender | July | Beilstein, Doug & The American Hosta Society | .2020 |
|
3
| 'Reginald Kaye' | Medium | Blue/Green | - | - | Unknown | Near-White | August | Ruh, Peter & Ruh, Jean | .2003 |
|
4
| 'Rhein' | Medium | Blue/Green | - | - | Unknown | Pale-Lavender | August | Klose, Heinz & Ruh, Peter & Ruh, Jean | .2003 |
|
5
| 'Riptide' | Medium | Blue/Green | - | - | Hybrid | Pale-Lavender | August | Sellers, Van | .1987 |
|
6
| 'Rosy' | Medium | Blue/Green | - | - | Unknown | - | - | Klose, Heinz | --NR-- |
|
7
| 'Rounder' | Small | Blue/Green | - | - | Unknown | - | - | Benedict, Dr Ralph (Herb) | --NR-- |
|