| No. | Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
|
1
| 'Caliban' | Giant | Yellow | Marginal | Green | Sport | Med-Lavender | July into August | Scolnik, Patricia & Walek, Kevin & The American Hosta Society | .2009 |
|
2
| 'Candy Kisses' | Medium | Med-Green | - | - | Hybrid | Med-Lavender | August to October | Solberg, Robert & Shades of Green | .2013 |
|
3
| 'Carved Complexity' | Large | Yellow | - | - | Hybrid | Near-White | June into July | McDonell, Harold | .2014 |
|
4
| 'Cathy's Splender' | Large | Dark-Green | - | - | Hybrid | Med-Lavender | July into August | Schuchert, Cathy | .2009 |
|
5
| 'Celadon Rainbow' | Miniature | Blue/Green | Medial | White | Unknown | Med-Lavender | July into August | Dye, Kay | .2020 |
|
6
| 'Cemetery Road' | Large | Med-Green | Streaked | White | Hybrid | Light-Purple | August to September | Kuenster, Rod | .2011 |
|
7
| 'Chance Encounter' | Medium | Blue/Green | Marginal | Green | Nat-Sport | Pure-White | June into July | Hansen, Hans | .2022 |
|
8
| 'Charlie' | Medium | Blue/Green | Medial | Green | Sport | Near-White | July | Graves, Butch | .2008 |
|
9
| 'Charlie Jane' | Giant | Blue/Green | - | - | Hybrid | Near-White | June into July | Kwick, Charles | .2018 |
|
10
| 'Cherry Tart Surprise' | Small | Light-Green | Streaked | White | Nat-Sport | Med-Lavender | August | Dammen, Mike | .2022 |
|
11
| 'Chickenhearted' | Medium | Light-Green | - | - | Hybrid | Pure-White | July into August | Groothuis, Mike | .2012 |
|
12
| 'Chimney Rock' | - | Dark-Green | Streaked | White | Hybrid | Med-Lavender | June into July | Kuenster, Rod | .2010 |
|
13
| 'Clarence Owens' | Large | Dark-Green | Medial | Yellow | Hybrid | Pale-Lavender | June into July | Kulpa, John | .2001 |
|
14
| 'Clean Green' | Medium | Light-Green | - | - | Hybrid | Pure-White | July into August | Goodenough, Rick & Gilligan, Madelon | .2017 |
|
15
| 'Colesburg Wiggles' | Medium | Med-Green | Marginal | Yellow | Unknown | Light-Purple | July into August | Hackbarth, Robert | .2015 |
|
16
| 'Color Riot' | Small | Med-Green | Medial | White | Hybrid | Pale-Lavender | June into July | Tompkins, Chet & Tompkins, Cynthia & Ruh, Peter | .2010 |
|
17
| 'Commotion' | Medium | Yellow | | | Hybrid | Near-White | June | Wasitis, Chick | .2021 |
|
18
| 'Compadre' | Medium | Dark-Green | Medial | Yellow | Sport | Light-Purple | July into August | Ritchey, Allen | .2015 |
|
19
| 'Compadre Gold' | Miniature | Yellow | | | Unknown | Light-Purple | | Krueger, Michael & Krueger, Fran | --NR-- |
|
20
| 'Conflicted' | Medium | Med-Green | - | - | Unknown | Pale-Lavender | July into August | Kwick, Charles | .2017 |
|
21
| 'Continental Divide' | Large | Dark-Green | Medial | Green | Hybrid | Near-White | June into August | Groothuis, Mike & Petryszyn, Olga | .2008 |
|
22
| 'Conundrum' | Giant | Blue/Green | - | - | Unknown | Med-Lavender | June into July | Gilligan, Madelon | .2012 |
|
23
| 'Cosmic Blue Seas' | Medium | Blue/Green | | | Hybrid | Pale-Lavender | June into July | Kuenster,Rod | .2021 |
|
24
| 'Cosmic Buddy' | Large | Blue/Green | Streaked | White | Hybrid | Near-White | July | Kuenster, Rod | .2022 |
|
25
| 'Cosmic Confetti' | Large | Blue/Green | Streaked | Yellow | Hybrid | Near-White | June into July | Kuenster, Rod | .2019 |
|
26
| 'Cosmic Delight' | Large | Light-Green | Streaked | White | Hybrid | Med-Lavender | June into July | Kuenster, Rod | .2010 |
|
27
| 'Cosmic Dragon' | Large | Blue/Green | Streaked | Yellow | Hybrid | Near-White | July into August | Kuenster, Rod | .2019 |
|
28
| 'Cosmic Exceptional' | Large | Blue/Green | Streaked | Yellow | Hybrid | Med-Lavender | July into August | Kuenster, Rod | .2019 |
|
29
| 'Cosmic Frosty' | Large | Blue/Green | Streaked | Yellow | Hybrid | Pale-Lavender | July into August | Kuenster, Rod | .2019 |
|
30
| 'Cosmic Infatuation' | Giant | Blue/Green | Streaked | Yellow | Hybrid | Pale-Lavender | July into August | Kuenster, Rod | .2019 |
|
31
| 'Cosmic Jazzy' | Large | Light-Green | Streaked | White | Hybrid | Pale-Lavender | July into August | Kuenster, Rod | .2019 |
|
32
| 'Cosmic Lace' | Large | Light-Green | Streaked | White | Hybrid | Pale-Lavender | June into July | Kuenster, Rod | .2010 |
|
33
| 'Cosmic Little Devil' | Medium | Blue/Green | | | Hybrid | Pale-Lavender | August | Kuenster, Rod | .2022 |
|
34
| 'Cosmic Memories' | Large | Med-Green | | | Hybrid | Pale-Lavender | June into July | Kuenster,Rod | .2021 |
|
35
| 'Cosmic Miss Fertile' | Large | Blue/Green | Streaked | Yellow | Hybrid | Pale-Lavender | July into August | Kuenster, Rod | .2013 |
|
36
| 'Cosmic Moonshine' | Large | Blue/Green | Streaked | Yellow | Hybrid | Med-Lavender | June into July | Kuenster, Rod | .2012 |
|
37
| 'Cosmic Passion' | Large | Med-Green | Streaked | Yellow | Hybrid | Pale-Lavender | July into August | Kuenster, Rod | .2011 |
|
38
| 'Cosmic Rain' (Kuenster) | Large | Blue/Green | Streaked | Yellow | Hybrid | Pale-Lavender | August | Kuenster, Rod | .2013 |
|
39
| 'Cosmic River' | Medium | Med-Green | Streaked | Yellow | Hybrid | Med-Lavender | July into August | Kuenster, Rod | .2011 |
|
40
| 'Cosmic Shine' | Large | Dark-Green | - | - | Hybrid | Near-White | June into July | Kuenster, Rod | .2012 |
|
41
| 'Cosmic Smiles' | Large | Blue/Green | Streaked | Yellow | Hybrid | Med-Lavender | June into July | Kuenster, Rod | .2012 |
|
42
| 'Cosmic Thrills' | Giant | Blue/Green | Streaked | Yellow | Hybrid | Pale-Lavender | July into August | Kuenster, Rod | .2019 |
|
43
| 'Cosmic Universe' | Giant | Blue/Green | Streaked | Yellow | Hybrid | Pale-Lavender | June into July | Kuenster, Rod | .2019 |
|
44
| 'Cosmic Warrior' | Medium | Med-Green | Streaked | Yellow | Hybrid | Pale-Lavender | June into July | Kuenster, Rod | .2014 |
|
45
| 'Cosmic Watercolors' | Medium | Med-Green | Streaked | Yellow | Hybrid | Near-White | July into August | Kuenster, Rod | .2011 |
|
46
| 'Cotton Fluff' | Medium | Dark-Green | Marginal | White | Sport | Near-White | July into August | Vertz, Mary | .2020 |
|
47
| 'Country Flamethrower' | Medium | Yellow | | | Hybrid | Pale-Lavender | August | Dean, Don | .2022 |
|
48
| 'Country River Rapids' | Medium | Blue/Green | Marginal | Yellow | Hybrid | Pale-Lavender | August to September | Dean, Don | .2020 |
|
49
| 'Crimson Desire' | Medium | Dark-Green | - | - | Hybrid | Med-Lavender | August | Dean, Don | .2017 |
|
50
| 'Cute as a Button' | Miniature | Med-Green | Medial | White | Unknown | Pale-Lavender | - | Goodwin, Randy | .2009 |
|