No. | Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
1
| 'Calm before the Storm' | Medium | Yellow | | | Hybrid | | | Solberg, Bob | --NR-- |
2
| 'Candy Dish' (Hawes) | Large | Dark-Green | - | - | Hybrid | Pale-Lavender | August to October | Hawes, James | --NR-- |
3
| 'Candy Dish' (Summers) | Medium | Med-Green | | - | Hybrid | Pale-Lavender | August to September | Summers, Alex & Wrede, Arthur | .2003 |
4
| 'Candy Kisses' | Medium | Med-Green | - | - | Hybrid | Med-Lavender | August to October | Solberg, Robert & Shades of Green | .2013 |
5
| 'Cascade Range' | Medium | Med-Green | | | Hybrid | | | Goodenough, Rick | --NR-- |
6
| 'Cauduca Saigoku' | Small | Med-Green | - | - | Unknown | - | - | Unknown | --NR-- |
7
| 'Cedar River' | Large | Dark-Green | - | - | Unknown | - | - | Malloy, Alex | --NR-- |
8
| 'Celtic Dancer' | Medium | Med-Green | - | - | Hybrid | Pale-Lavender | July into August | Dean, Don | .2008 |
9
| 'Cemetery Road' | Large | Med-Green | Streaked | White | Hybrid | Light-Purple | August to September | Kuenster, Rod | .2011 |
10
| 'Chariots of Fire' | Medium | Light-Green | Marginal | Yellow | Hybrid | Light-Purple | August to October | Dishon, Jim | .2004 |
11
| 'Chartreuse Fountain' | Medium | Yellow | - | - | Unknown | - | - | Livingston, Ron | --NR-- |
12
| 'Cheery Charley' | Miniature | Light-Green | Marginal | White | Sport | Light-Purple | August | Green Mountain Hosta | --NR-- |
13
| 'Cherries a la Mode' | Small | Yellow | Marginal | White | Sport | Med-Lavender | June into July | Vasey, Mike | .2017 |
14
| 'Cherry Flip' | Medium | Dark-Green | - | - | Hybrid | Light-Purple | August | Zilis, Mark & Solberg, Robert | .2012 |
15
| 'Cherry Garcia' | - | - | - | - | Unknown | - | - | Herold, Roy | --NR-- |
16
| 'Cherry Red' | Medium | Dark-Green | | | Unknown | | | Van Eechaute, Danny | --NR-- |
17
| 'Chic Boutique' | Medium | Med-Green | | | Hybrid | Light-Purple | August to September | Bowe, Dave | .2021 |
18
| 'Chicago Blues' | Medium | Blue/Green | | | Hybrid | | | Solberg, Bob & Northern Illinois Hosta Society | --NR-- |
19
| 'Chichibu Genso Iwa' | Medium | Med-Green | Streaked | White | Sport | - | - | Kosasa | --NR-- |
20
| 'Childhood Sweetheart' | Medium | Light-Green | Marginal | White | Hybrid | Pale-Lavender | August | Hansen, Hans | .2005 |
21
| 'China Girl' | Small | Med-Green | - | - | Hybrid | Pale-Lavender | - | Scheer, Alttara | --NR-- |
22
| 'Chopsticks' | Medium | Med-Green | - | - | Hybrid | Light-Purple | September to October | Herold, Roy & Walek, Kevin & The American Hosta Society | .2009 |
23
| 'Chris' Bluemania' | Large | Blue/Green | | | Unknown | | | Brinkmann, Christina | --NR-- |
24
| 'Chris' China Star' | Medium | Light-Green | - | - | Hybrid | - | - | Brinkmann, Christina | --NR-- |
25
| 'Chris' Darkest Purple' | Medium | Light-Green | | | Hybrid | Deep-Purple | August to September | Brinkmann, Christina | --NR-- |
26
| 'Chris' Little Watermelon' | Small | Med-Green | | | Nat-Sport | Pale-Lavender | | Brinkmann, Christina | --NR-- |
27
| 'Chris' No. 1' | Medium | Light-Green | Medial | White | Unknown | | | Brinkmann, Christina | --NR-- |
28
| 'Chris' Pale Winner' | Small | Yellow | | | Unknown | | | Brinkmann, Christina | --NR-- |
29
| 'Chris' Red Lightning' | Medium | Med-Green | | | Hybrid | | | Brinkmann, Christina | --NR-- |
30
| 'Chris' Small Talk' | Small | Med-Green | Marginal | Yellow | Nat-Sport | Pale-Lavender | | Brinkmann, Christina | --NR-- |
31
| 'Chris' Tropical Sundown' | Medium | Yellow | | | Hybrid | Med-Lavender | August to September | Brinkmann, Christina | --NR-- |
32
| 'Cinnabon' | Medium | Light-Green | | | Hybrid | Light-Purple | August to September | Bowe, Dave | .2021 |
33
| 'Cinnamon and Sugar' | Medium | Med-Green | - | - | Unknown | - | - | Herold, Roy | --NR-- |
34
| 'Cinnamon Bun' | Miniature | Med-Green | - | - | Unknown | - | - | Herold, Roy | --NR-- |
35
| 'Cinnamon Sticks' | Medium | Med-Green | - | - | Hybrid | Light-Purple | August to October | Herold, Roy & Walek, Kevin & The American Hosta Society | .2009 |
36
| 'Cinnamon Twist' | Medium | Med-Green | - | - | Unknown | - | - | Herold, Roy | --NR-- |
37
| 'City Dog' | Medium | Med-Green | Marginal | White | Sport | Pale-Lavender | June into July | Van Eechaute, Danny | .2014 |
38
| 'Clarence Owens' | Large | Dark-Green | Medial | Yellow | Hybrid | Pale-Lavender | June into July | Kulpa, John | .2001 |
39
| 'Clementine' | Small | Med-Green | - | - | Hybrid | Pale-Lavender | July | Husemann, Jim & Schulz, Ed | .2007 |
40
| 'Coach Jim Fox' | Medium | Dark-Green | Streaked | White | Hybrid | - | July into August | Freeman, Franc | .2009 |
41
| 'Coastal Golden Phoenix' | Medium | Yellow | | | Unknown | | | Desmedt, Rik | --NR-- |
42
| 'Cochato Creek' | Medium | Blue/Green | Streaked | Yellow | Unknown | | | Doughty, Chuck | --NR-- |
43
| 'Cochato Red Silk Stocking' | | | | | Unknown | | | Doughty, Chuck | --NR-- |
44
| 'Coconut Custard' | Miniature | Yellow | - | - | Hybrid | Med-Lavender | July into August | Solberg, Robert | .2007 |
45
| 'Code Red' | Small | Yellow | - | - | Unknown | - | - | Unknown | --NR-- |
46
| 'Cognac' | Medium | Med-Green | | | Unknown | | | Unknown | --NR-- |
47
| 'Colored Muffin' | Medium | Blue/Green | Streaked | Yellow | Nat-Sport | Deep-Purple | July | Van den Top, Jan | --NR-- |
48
| 'Colors in Motion' | Giant | Blue/Green | Streaked | White | Hybrid | Pale-Lavender | June into July | de Rooij, Piet | .2014 |
49
| 'Condor' | Small | Med-Green | - | - | Hybrid | Light-Purple | August to October | Sugita, Hajime & Ruh, Peter | .2002 |
50
| 'Contorted Dragon' | Large | Blue/Green | - | - | Hybrid | - | - | Livingston, Ron | --NR-- |
51
| 'Cooltini' | Small | Blue/Green | - | - | Hybrid | Light-Purple | August to September | Zilis, Mark | .2009 |
52
| 'Corkscrew' | Small | Med-Green | - | - | Hybrid | Light-Purple | August to October | Solberg, Robert | .2003 |
53
| 'Cosmic Confetti' | Large | Blue/Green | Streaked | Yellow | Hybrid | Near-White | June into July | Kuenster, Rod | .2019 |
54
| 'Cosmic Eye Candy' | Medium | Med-Green | Streaked | Yellow | Hybrid | Pale-Lavender | June into July | Kuenster, Rod | .2014 |
55
| 'Cosmic Hot Mama' | Large | Med-Green | Streaked | White | Hybrid | Near-White | June into July | Kuenster, Rod | .2011 |
56
| 'Cosmic Jazzy' | Large | Light-Green | Streaked | White | Hybrid | Pale-Lavender | July into August | Kuenster, Rod | .2019 |
57
| 'Cosmic Killer' | Large | Blue/Green | Streaked | White | Hybrid | Near-White | July | Kuenster, Rod | .2021 |
58
| 'Cosmic Mad Scientist' | Large | Blue/Green | Streaked | Yellow | Hybrid | Near-White | - | Kuenster, Rod | .2012 |
59
| 'Cosmic Moonshine' | Large | Blue/Green | Streaked | Yellow | Hybrid | Med-Lavender | June into July | Kuenster, Rod | .2012 |
60
| 'Cosmic Paint Shaker' | Large | Blue/Green | Streaked | Yellow | Hybrid | Near-White | June into July | Kuenster, Rod | .2012 |
61
| 'Cosmic Pistol' | Medium | Light-Green | Streaked | White | Hybrid | Near-White | July | Kuenster, Rod | .2012 |
62
| 'Cosmic Rain' (Kuenster) | Large | Blue/Green | Streaked | Yellow | Hybrid | Pale-Lavender | August | Kuenster, Rod | .2013 |
63
| 'Cosmic River' | Medium | Med-Green | Streaked | Yellow | Hybrid | Med-Lavender | July into August | Kuenster, Rod | .2011 |
64
| 'Cosmic Secret' | Medium | Blue/Green | Streaked | Yellow | Hybrid | Near-White | July into August | Kuenster, Rod | .2013 |
65
| 'Cosmic Smiles' | Large | Blue/Green | Streaked | Yellow | Hybrid | Med-Lavender | June into July | Kuenster, Rod | .2012 |
66
| 'Cranberries and Cream' | Small | Dark-Green | Streaked | White | Unknown | - | - | Silvers, Bill | --NR-- |
67
| 'Cranberry Wine' | Small | Light-Green | - | - | Hybrid | - | - | Sisson, Kathie | --NR-- |
68
| 'Crazy Hazy' | Medium | Blue/Green | Marginal | Yellow | Sport | Med-Lavender | - | Fransen, Marco & Fransen, Joyce | --NR-- |
69
| 'Crazy Spirit' | Medium | Med-Green | Streaked | Yellow | Sport | Pale-Lavender | August | Van Eechaute, Danny | --NR-- |
70
| 'Crickett's Mountain Mist' | Large | Blue/Green | Streaked | White | Sport | Pale-Lavender | July into August | Bailey, Crickett | .2017 |
71
| 'Crimson Desire' | Medium | Dark-Green | - | - | Hybrid | Med-Lavender | August | Dean, Don | .2017 |
72
| 'Crumb Cake' | Small | Dark-Green | - | - | Hybrid | Light-Purple | July | Solberg, Robert | .2008 |
|