| No. | Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
|
1
| 'Krossa Regal' | Giant | Blue/Green | | - | Hybrid | Pale-Lavender | July into August | Krossa, Gus & Summers, Alex | .1980 |
|
2
| 'Cardwell Yellow' | Large | Yellow | | - | Unknown | Near-White | June into July | Krossa, Gus & Ruh, Peter | .1981 |
|
3
| 'Samual Blue' | Large | Blue/Green | | - | Unknown | Near-White | June into July | Krossa, Gus & Ruh, Peter | .1981 |
|
4
| 'Gloriosa' | Medium | Med-Green | Marginal | White | Unknown | Pale-Lavender | July into August | Krossa, Gus & Summers, Alex & The American Hosta Society | .1986 |
|
5
| 'Krossa Broad Band' | Large | Blue/Green | Marginal | Yellow | Sport | Pale-Lavender | July | Krossa, Gus & Ruh, Peter | .1991 |
|
6
| 'King James' | Large | Med-Green | | - | Hybrid | Near-White | June into July | Krossa, Gus & Ruh, Peter | .1992 |
|
7
| 'King Michael' | Giant | Med-Green | | - | Hybrid | Near-White | June | Krossa, Gus & Summers, Alex & Ruh, Peter | .1992 |
|
8
| 'Alma' | Small | Yellow | | - | Unknown | Light-Purple | August | Krossa, Gus & Ruh, Peter | .1995 |
|
9
| 'Krossa Cream Edge' | Small | Med-Green | Marginal | White | Unknown | Deep-Purple | August | Krossa, Gus | .1997 |
|
10
| 'Show Piece' | Small | Med-Green | | - | Hybrid | Light-Purple | July into August | Krossa, Gus & Ruh, Peter | .1998 |
|
11
| 'Wayne' | Medium | Med-Green | Marginal | Yellow | Sport | Pale-Lavender | July into August | Krossa, Gus & Ruh, Peter | .1999 |
|
12
| 'White Christmas' | Medium | Med-Green | Medial | White | Sport | Pale-Lavender | July into August | Palmer & Krossa, Gus & Ruh, Peter | .1999 |
|
13
| 'Saginaw' | Small | Light-Green | | - | Unknown | Med-Lavender | June into July | Krossa, Gus & Ruh, Peter & Ruh, Jean | .2009 .2018 |
|