| No. | Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
|
1
| 'Canadian Whirls' | Large | Blue/Green | Marginal | Yellow | Sport | Near-White | - | Unknown | --NR-- |
|
2
| 'Capricorn' | Large | Blue/Green | - | - | Hybrid | - | June into July | Husemann, Jim | .2009 |
|
3
| 'Caravan' | Medium | Med-Green | Marginal | Yellow | Hybrid | Near-White | June into July | Ward, Dr Dick & Ward, Jane | .2012 |
|
4
| 'Catherine' | Medium | Blue/Green | Medial | White | Sport | Med-Lavender | July into August | Heemskerk, Gerardus | .2011 |
|
5
| 'Celadon Treasure' | Giant | Dark-Green | Marginal | Yellow | Hybrid | Pale-Lavender | June into July | Chrystal, Ian & Colley, June & Baker, John | .2020 |
|
6
| 'Charlebois' | Large | Blue/Green | - | - | Hybrid | Pale-Lavender | - | Bastille, Jocelyne | --NR-- |
|
7
| 'Cheese Ball' | Miniature | Light-Green | - | - | Unknown | Pale-Lavender | July into August | Goodwin, Randy | .2017 |
|
8
| 'Chiller' | Large | Blue/Green | | | Hybrid | Med-Lavender | July into August | Beilstein, Doug & Beilstein, Mardy | .2022 |
|
9
| 'Chinese Gold' | Medium | Yellow | - | - | Hybrid | - | August to September | Wade, Van & Walek, Kevin & The American Hosta Society | .2009 |
|
10
| 'Cloud Nine' | Giant | Med-Green | Streaked | Yellow | Sport | Med-Lavender | July | Trucks, Gary | --NR-- |
|
11
| 'Coach Paul Castro' | Medium | Med-Green | Streaked | Yellow | Hybrid | - | August to September | Freeman, Franc | .2010 |
|
12
| 'Coat of Many Colors' | Small | Dark-Green | Medial | White | Nat-Sport | Med-Lavender | July | Kwick, Charles | .2021 |
|
13
| 'Coldness No.5' | Small | Med-Green | Marginal | Yellow | Hybrid | Med-Lavender | August to September | Liu, Zhiyang | .2021 |
|
14
| 'Color Glory' (Sieboldiana) | Giant | Blue/Green | Medial | Yellow | Nat-Sport | Near-White | June into July | Unknown | --NR-- |
|
15
| 'Command Performance' (Janssen) | Large | Dark-Green | Medial | White | Sport | Light-Purple | July | Janssen, Bill | --NR-- |
|
16
| 'Corona' (Braun-Nauerz) | Giant | Light-Green | Marginal | Yellow | Sport | Pale-Lavender | July into August | Braun-Nauerz, Gaby & Warmerdam, Piet | .1996 |
|
17
| 'Cosmic Frosty' | Large | Blue/Green | Streaked | Yellow | Hybrid | Pale-Lavender | July into August | Kuenster, Rod | .2019 |
|
18
| 'Cosmic Lovin' | Large | Med-Green | Marginal | White | Sport | Pale-Lavender | July into August | Kuenster, Rod | .2013 |
|
19
| 'Cosmic Spotted Cow' | Medium | Med-Green | Streaked | White | Hybrid | Near-White | June into July | Kuenster, Rod | .2011 |
|
20
| 'Cosmic Universe' | Giant | Blue/Green | Streaked | Yellow | Hybrid | Pale-Lavender | June into July | Kuenster, Rod | .2019 |
|
21
| 'Country Corn' | Large | Yellow | - | - | Unknown | Near-White | July | Dye, Kay | .2017 |
|
22
| 'Craig Harlequin Bells' | Medium | Dark-Green | - | - | Unknown | Light-Purple | June into July | Craig, Jack & Ruh, Peter | .1998 .1999 |
|
23
| 'Cream Flash' | Large | Med-Green | Streaked | Yellow | Sport | Light-Purple | July | Wallace | --NR-- |
|
24
| 'Creature from the Black Lagoon' | Medium | Dark-Green | | | Hybrid | Pure-White | July | Beistein, Doug | .2022 |
|
25
| 'Creek' | Medium | Blue/Green | - | - | Hybrid | Pure-White | June | Wade, Van | .2007 |
|
26
| 'Crinkled Creature' | Large | Light-Green | | - | Unknown | Pale-Lavender | July | Klotz, Ruby & Klotz, B. | .2020 |
|
27
| 'Crinkled Joy' | Large | Blue/Green | - | - | Unknown | Near-White | July | Unknown | --NR-- |
|
28
| 'Crusty Old Fart' | Medium | Dark-Green | - | - | Unknown | - | - | Freeman, Franc & Freeman, Sally | .2010 |
|
29
| 'Cute Little Delores' | Small | Yellow | - | - | Unknown | - | July into August | Freeman, Franc | .2009 |
|