| No. | Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
|
1
| "FRW No. 1281" | | Med-Green | | | 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" | - | Med-Green | Marginal | White | Unknown | - | - | Krossa, Gus | --NR-- |
|
6
| "Krossa E-3" | | - | | | Unknown | - | | Krossa, Gus | --NR-- |
|
7
| "Krossa F-8" | - | Yellow | | | Unknown | - | - | Krossa, Gus | --NR-- |
|
8
| "Krossa G-2" | - | Unknown | | | Unknown | | - | Starker, Carl & Krossa, Gus | --NR-- |
|
9
| "Krossa J-2" | | - | | | Unknown | - | | Krossa, Gus | --NR-- |
|
10
| 'Alma' | Small | Yellow | | | Unknown | Light-Purple | August | Krossa, Gus & Ruh, Peter | .1995 |
|
11
| 'Blue Pearl' (Holland) | Medium | Blue/Green | | | Unknown | Near-White | July | Holland (unknown) & Krossa, Gus | --NR-- |
|
12
| 'Bukou Nishiki Iwa' | Medium | Dark-Green | | | Nat-Sport | Light-Purple | August to September | Krossa, Gus | --NR-- |
|
13
| 'Cardwell Yellow' | Large | Yellow | | | Unknown | Near-White | June to July | Krossa, Gus & Ruh, Peter | .1981 |
|
14
| 'Fifty Grand' | Unknown | Unknown | | | Unknown | Unknown | Unknown | Krossa, Gus | --NR-- |
|
15
| 'Gloriosa' | Medium | Med-Green | Marginal | White | Unknown | Pale-Lavender | July to August | Krossa, Gus & Summers, Alex & The American Hosta Society | .1986 |
|
16
| 'King James' | Large | Med-Green | | | Hybrid | Near-White | June to July | Krossa, Gus & Ruh, Peter | .1992 |
|
17
| 'King Michael' | Giant | Med-Green | | | Hybrid | Near-White | June | Krossa, Gus & Summers, Alex & Ruh, Peter | .1992 |
|
18
| 'Krossa Broad Band' | Large | Blue/Green | Marginal | Yellow | Sport | Pale-Lavender | July | Krossa, Gus & Ruh, Peter | .1991 |
|
19
| 'Krossa Cream Edge' | Small | Med-Green | Marginal | White | Unknown | Deep-Purple | August | Krossa, Gus | .1997 |
|
20
| 'Krossa Cream Puff' | Unknown | Unknown | | | Unknown | Unknown | Unknown | Krossa, Gus | --NR-- |
|
21
| 'Krossa Regal' | Giant | Blue/Green | | | Hybrid | Pale-Lavender | July to August | Krossa, Gus & Summers, Alex | .1980 |
|
22
| 'Krossa Variegated' | Medium | Blue/Green | Streaked | Speckles | Unknown | Med-Lavender | July | Krossa, Gus | --NR-- |
|
23
| 'Ros Hogh' | Medium | Med-Green | | | Unknown | Med-Lavender | August to September | Krossa, Gus & Mr Curtis | --NR-- |
|
24
| 'Saginaw' | Small | Light-Green | | | Unknown | Med-Lavender | June to July | Krossa, Gus & Ruh, Peter & Ruh, Jean | .2009 .2018 |
|
25
| 'Samual Blue' | Large | Blue/Green | | | Unknown | Near-White | June to July | Krossa, Gus & Ruh, Peter | .1981 |
|
26
| 'Show Piece' | Small | Med-Green | | | Hybrid | Light-Purple | July to August | Krossa, Gus & Ruh, Peter | .1998 |
|
27
| 'Wayne' | Medium | Med-Green | Marginal | Yellow | Sport | Pale-Lavender | July to August | Krossa, Gus & Ruh, Peter | .1999 |
|
28
| 'White Christmas' | Medium | Med-Green | Medial | White | Sport | Pale-Lavender | July to August | Palmer & Krossa, Gus & Ruh, Peter | .1999 |
|