| No. | Hybrid Hostas | Origin | Pod Parent | x Pollen Parent | Source | Registered |
|
1
| 'Cantabi' | Unknown | - | - | Hirao, Shuichi & Ruh, Peter | .2001 |
|
2
| 'Hirao Elite' | Unknown | - | - | Hirao, Shuichi & Ruh, Peter | .1997 |
|
3
| 'Hirao Imperial' | Unknown | - | Unknown | Hirao, Shuichi & Ruh, Peter | .1998 |
|
4
| 'Hirao Majesty' | Unknown | - | - | Hirao, Shuichi & Ruh, Peter | .1997 |
|
5
| 'Hirao Monument' | Unknown | | | Hirao, Shuichi & Ruh, Peter | .2001 |
|
6
| 'Hirao Splendor' | Unknown | - | - | Hirao, Shuichi & Ruh, Peter | .1997 |
|
7
| 'Hirao Supreme' | Unknown | - | - | Hirao, Shuichi & Ruh, Peter | .1997 |
|
8
| 'Kirishima' | Unknown | - | - | Hirao, Shuichi | --NR-- |
|
9
| 'Shiro Sasa' | Unknown | - | - | Hirao, Shuichi | --NR-- |
|