| No. | Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
|
1
| 'Calico Mouse Ears' | Miniature | Med-Green | Streaked | White | TC Sport | Light-Purple | July | Zilis, Mark | .2012 |
|
2
| 'Cambria Blue' | Medium | Blue/Green | - | - | Unknown | - | - | Benedict, Dr Ralph (Herb) | --NR-- |
|
3
| 'Canadian Blue' | Large | Blue/Green | - | - | Unknown | Pale-Lavender | July into August | Van Vliet, Arie & Walek, Kevin & The American Hosta Society | .2009 |
|
4
| 'Carder Blue' (Carder) | Medium | Blue/Green | - | - | Unknown | Near-White | June into July | The American Hosta Society | .1986 |
|
5
| 'Carder Blue' (Summers) | Small | Blue/Green | | | Unknown | Med-Lavender | | Carder, Ellen & Summers, Alex | --NR-- |
|
6
| 'Carolina Blue' | Medium | Blue/Green | - | - | Hybrid | Light-Purple | August | Solberg, Robert | .2000 |
|
7
| 'Cat and Mouse' (Hansen) | Miniature | Med-Green | Medial | Creamy White | TC Sport | Light-Purple | July | Hansen, Hans & Shady Oaks Nursery | .2007 |
|
8
| 'Chelsea Blue' | | | | | Unknown | | | Unknown (Listed) | --NR-- |
|
9
| 'Chinchilla Blue' | - | - | - | - | Unknown | - | - | Unknown | --NR-- |
|
10
| 'Church Mouse' | Small | Dark-Green | - | - | Sport | Pale-Lavender | July | Walters Gardens | .2012 |
|
11
| 'Clear Fork Blue' | Giant | Blue/Green | - | - | Unknown | Pale-Lavender | June into July | Wade, Van | --NR-- |
|
12
| 'Clearfork Blue' | Large | Blue/Green | | | Unknown | | | Wade, Van | --NR-- |
|
13
| 'Code Blue' | Medium | Blue/Green | | | Hybrid | | | Ziarek, Ken | --NR-- |
|
14
| 'Colesburg Blue' | Medium | Blue/Green | - | - | Hybrid | Pale-Lavender | June | Hackbarth, Robert | .2004 |
|
15
| 'Computer Blue' | Small | Blue/Green | | | Unknown | | | Berios, Tracy | --NR-- |
|
16
| 'Cool Blue' | Medium | Blue/Green | - | - | Unknown | Med-Lavender | June into July | Benedict, Dr Ralph (Herb) & Benedict, Dorothy & Kuenster, Rod | .2010 |
|
17
| 'Cool Mouse' | Miniature | Blue/Green | Marginal | Yellow | Nat-Sport | Pale-Lavender | July | Van Eechaute, Danny | --NR-- |
|
18
| 'Copenhagen Blue' | - | - | - | - | Hybrid | - | - | Housworth, Jere | --NR-- |
|
19
| 'Cosmic Blue' | Medium | Blue/Green | - | - | Hybrid | Med-Lavender | - | Livingston, Ron | --NR-- |
|
20
| 'Cowboy Blue Chrome' | Medium | Blue/Green | | | Unknown | | | Gamradt, John | --NR-- |
|
21
| 'Cowboy Gun Metal Blue' | Large | Blue/Green | | | Unknown | | | Gamradt, John | --NR-- |
|
22
| 'Crazy Mouse' | Small | Blue/Green | - | - | Hybrid | - | - | Avent, Tony | --NR-- |
|
23
| 'Crazy Mouse Ears' | Small | Blue/Green | Medial | White | Sport | Light-Purple | July | Schwarz, Jim | --NR-- |
|
24
| 'Crispy Blue' | - | - | - | - | Unknown | - | - | Jentsch, Klaus | --NR-- |
|
25
| 'Crystal Blue Persuasion' | Miniature | Blue/Green | Medial | White | Unknown | | | Naylor Creek Nursery | --NR-- |
|
26
| 'Cubbie Blue' | | | | | Duplicate | | | Wols, Dan | --NR-- |
|
27
| 'Cubby Blue' | Medium | Blue/Green | | | Hybrid | | | Wols, Dan | --NR-- |
|