| No. | Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
|
1
| 'Catherine the Great' | Medium | Light-Green | | - | Unknown | Pale-Lavender | July into August | Goodwin, Randy | .2019 |
|
2
| 'Change of Venue' | Large | Blue/Green | | - | Sport | Near-White | June into July | Lysne, Rod | .2019 |
|
3
| 'Clean Shave' | Medium | Med-Green | Marginal | White | Sport | Med-Lavender | July into August | Lysne, Rod | .2019 |
|
4
| 'Cold Heart' | Large | Light-Green | | - | Unknown | Pale-Lavender | June into July | Scheer, Alttara & The American Hosta Society | .2019 |
|
5
| 'Combined Elegance' | Medium | Yellow-Gold | | - | Hybrid | Pale-Lavender | July into August | Kwick, Charles | .2019 |
|
6
| 'Cosmic Confetti' | Large | Blue/Green | Streaked | Yellow | Hybrid | Near-White | June into July | Kuenster, Rod | .2019 |
|
7
| 'Cosmic Dragon' | Large | Blue/Green | Streaked | Yellow | Hybrid | Near-White | July into August | Kuenster, Rod | .2019 |
|
8
| 'Cosmic Exceptional' | Large | Blue/Green | Streaked | Yellow | Hybrid | Med-Lavender | July into August | Kuenster, Rod | .2019 |
|
9
| 'Cosmic Frosty' | Large | Blue/Green | Streaked | Yellow | Hybrid | Pale-Lavender | July into August | Kuenster, Rod | .2019 |
|
10
| 'Cosmic Infatuation' | Giant | Blue/Green | Streaked | Yellow | Hybrid | Pale-Lavender | July into August | Kuenster, Rod | .2019 |
|
11
| 'Cosmic Jazzy' | Large | Light-Green | Streaked | White | Hybrid | Pale-Lavender | July into August | Kuenster, Rod | .2019 |
|
12
| 'Cosmic Shadows' | Large | Dark-Green | Streaked | Yellow | Hybrid | Pale-Lavender | July into August | Kuenster, Rod | .2019 |
|
13
| 'Cosmic Thrills' | Giant | Blue/Green | Streaked | Yellow | Hybrid | Pale-Lavender | July into August | Kuenster, Rod | .2019 |
|
14
| 'Cosmic Tie Dye' | Giant | Blue/Green | Streaked | Yellow | Hybrid | Near-White | June into July | Kuenster, Rod | .2019 |
|
15
| 'Cosmic Trophy' | Large | Med-Green | Streaked | Yellow | Hybrid | Near-White | June into July | Kuenster, Rod | .2019 |
|
16
| 'Cosmic Universe' | Giant | Blue/Green | Streaked | Yellow | Hybrid | Pale-Lavender | June into July | Kuenster, Rod | .2019 |
|
17
| 'Country Double Take' | Medium | Med-Green | Marginal | Yellow | Hybrid | Med-Lavender | August to September | Dean, Don | .2019 |
|
18
| 'Country Rippled Relic' | Medium | Blue/Green | | - | Hybrid | Med-Lavender | July into August | Dean, Don | .2019 |
|