| No. | Hybrid Hostas | Origin | Pod Parent | x Pollen Parent | Source | Registered |
|
1
| "FRW No. 1281" | Unknown | | | Krossa, Gus | --NR-- |
|
2
| "FRW No. 1343" | Unknown | | | Krossa, Gus | --NR-- |
|
3
| "FRW No. 1447" | Unknown | | | Krossa, Gus | --NR-- |
|
4
| "FRW No. 1448" | Unknown | | | Krossa, Gus | --NR-- |
|
5
| "Krossa C-3" | Unknown | - | - | Krossa, Gus | --NR-- |
|
6
| "Krossa E-3" | Unknown | - | - | Krossa, Gus | --NR-- |
|
7
| "Krossa F-8" | Unknown | - | - | Krossa, Gus | --NR-- |
|
8
| "Krossa G-2" | Unknown | - | - | Starker, Carl & Krossa, Gus | --NR-- |
|
9
| "Krossa J-2" | Unknown | - | - | Krossa, Gus | --NR-- |
|
10
| 'Alma' | Unknown | - | - | Krossa, Gus & Ruh, Peter | .1995 |
|
11
| 'Blue Pearl' (Krossa) | Unknown | - | - | Holland (unknown) & Krossa, Gus | --NR-- |
|
12
| 'Cardwell Yellow' | Unknown | - | - | Krossa, Gus & Ruh, Peter | .1981 |
|
13
| 'Fifty Grand' | Unknown | - | - | Krossa, Gus | --NR-- |
|
14
| 'Gloriosa' | Unknown | - | - | Krossa, Gus & Summers, Alex & The American Hosta Society | .1986 |
|
15
| 'Krossa Cream Edge' | Unknown | - | - | Krossa, Gus | .1997 |
|
16
| 'Krossa Cream Puff' | Unknown | - | - | Krossa, Gus | --NR-- |
|
17
| 'Krossa Variegated' | Unknown | - | - | Krossa, Gus | --NR-- |
|
18
| 'Ros Hogh' | Unknown | - | - | Krossa, Gus & Mr Curtis | --NR-- |
|
19
| 'Saginaw' | Unknown | - | - | Krossa, Gus & Ruh, Peter & Ruh, Jean | .2009 .2018 |
|
20
| 'Samual Blue' | Unknown | - | - | Krossa, Gus & Ruh, Peter | .1981 |
|