No. | Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
1
| 'Caesar' | Medium | Yellow | Marginal | Green | Sport | Pale-Lavender | July | Malloy, Alex | .1999 |
2
| 'Calamity Jane' | Large | Med-Green | Streaked | Speckles | Hybrid | Pale-Lavender | July into August | Nyikos, Frank | .2001 |
3
| 'Captain Kirk' | Large | Blue/Green | Medial | Yellow | Sport | Pale-Lavender | July | Brill, Kirk | .1999 |
4
| 'Carin's Wedding' | Small | Med-Green | Streaked | White | Unknown | Light-Purple | July into August | Musak, Don & Zilis, Mark | .2012 |
5
| 'Carisa Nichole' | Medium | Blue/Green | Marginal | Yellow | Hybrid | Pale-Lavender | June into July | Byrd, I. | .2000 |
6
| 'Carl' | Small | Blue/Green | - | - | Unknown | Pale-Lavender | June into July | Calderara, Carl & Ruh, Peter | .1991 |
7
| 'Carol' | Medium | Blue/Green | Marginal | White | Sport | Pale-Lavender | July into August | Williams, Frances & The American Hosta Society | .1986 |
8
| 'Carol and Martin' | Medium | Dark-Green | Streaked | Yellow | Sport | Pale-Lavender | July into August | Sawyer, Rick | --NR-- |
9
| 'Carol Marie' | Miniature | Light-Green | - | - | Hybrid | - | June into July | Kwick, Charles | .2016 |
10
| 'Carolina Keepsake' | Small | Yellow | - | - | Hybrid | - | August to September | Solberg, Robert | .2016 |
11
| 'Carol's August Halo' | Medium | Med-Green | Marginal | Yellow | Sport | Pale-Lavender | July | Brashear, Carol | --NR-- |
12
| 'Carol's Sister' | Large | Med-Green | - | - | Sport | Pale-Lavender | July into August | Williams, Frances | --NR-- |
13
| 'Carolyn On The Edge' | Medium | Med-Green | Streaked | Yellow | Unknown | - | - | Williams, Glenn | --NR-- |
14
| 'Carrie' (Livingston) | Medium | Light-Green | | | Hybrid | Pure-White | August | Livingston, Ron | --NR-- |
15
| 'Carrie' (Stone) | - | - | - | - | Duplicate | - | - | Stone, David | --NR-- |
16
| 'Carrie Ann' | Small | Blue/Green | Marginal | White | Unknown | Pure-White | August | Stone, David & Ruh, Peter | .1988 |
17
| 'Carson' | Medium | Med-Green | - | - | Unknown | - | - | Unknown | --NR-- |
18
| 'Caryl's Fancy' | Medium | Blue/Green | Marginal | Light Green | Unknown | - | - | Vaillancourt, Caryl | --NR-- |
19
| 'Cassandra' | Small | Yellow | - | - | Hybrid | Light-Purple | July | Wagner, Wally | .1985 |
20
| 'Cassanova' | Medium | Med-Green | Streaked | Speckles | Sport | Light-Purple | August | Seaver, Charles | --NR-- |
21
| 'Catherine Ann' | Medium | Blue/Green | - | - | Hybrid | Pale-Lavender | June | Nyikos, Frank | .1999 |
22
| 'Cathy Late' | | - | - | - | Duplicate | - | - | Ruh, Peter | --NR-- |
23
| 'Cathy's Clown' (Unknown) | Small | Dark-Green | Streaked | White | Unknown | - | - | Unknown | --NR-- |
24
| 'Cathy's Clown' (Wasitis) | Medium | Med-Green | Marginal | White | Unknown | - | June into July | Wasitis, Chick | .2011 |
25
| 'Cathy's Splender' | Large | Dark-Green | - | - | Hybrid | Med-Lavender | July into August | Schuchert, Cathy | .2009 |
26
| 'Chante's Dark Emerald' | Large | Dark-Green | Streaked | Speckles | Sport | Med-Lavender | July into August | Blue Jean Farms | .2005 |
27
| 'Charity' | Medium | Dark-Green | Marginal | White | Sport | - | June into July | Silvers, Bill | .2011 |
28
| 'Charldon' | - | - | - | - | Unknown | - | - | Williams, Frances | --NR-- |
29
| 'Charlemagne' | - | - | - | - | Unknown | - | - | Malloy, Alex | --NR-- |
30
| 'Charles' | Giant | Dark-Green | - | - | Sport | Pale-Lavender | June into July | Schwarz, Jim & Schwarz, Karen | .2014 |
31
| 'Charlie' | Medium | Blue/Green | Medial | Green | Sport | Near-White | July | Graves, Butch | .2008 |
32
| 'Charlie Jane' | Giant | Blue/Green | - | - | Hybrid | Near-White | June into July | Kwick, Charles | .2018 |
33
| 'Charlie John' | - | - | - | - | Unknown | - | - | Hatfield, Handy | --NR-- |
34
| 'Charlie's Angels' | Large | Yellow | - | - | Sport | Pale-Lavender | June | Zilis, Mark | .2009 |
35
| 'Charlotte's Web' | Small | Med-Green | Streaked | Yellow | Sport | Light-Purple | July | Beilstein, Doug & Zilis, Mark | .2009 |
36
| 'Charon' | - | - | - | - | Unknown | - | - | Klose, Heinz | --NR-- |
37
| 'Cheery Charley' | Miniature | Light-Green | Marginal | White | Sport | Light-Purple | August | Green Mountain Hosta | --NR-- |
38
| 'Cheese Louise' | Large | Light-Green | - | - | Unknown | - | - | Hackbarth, Robert | .2015 |
39
| 'Chelsea Ore' | Large | Light-Green | Marginal | Green | Hybrid | Pure-White | August | Chelsea Physic Garden | .1989 |
40
| 'Chesieres Jasmin's Hope' | Small | Blue/Green | Streaked | Speckles | Sport | Near-White | June into July | Hirsbrunner, Liselotte | .2002 |
41
| 'Chester' | Large | Blue/Green | Marginal | Yellow | Unknown | Near-White | - | Westberg, Jim | --NR-- |
42
| 'Cheyenne' | Large | Med-Green | - | - | Unknown | - | - | Wade, Van | --NR-- |
43
| 'Chick's Wannabe' | Small | Light-Green | Marginal | Yellow | Unknown | - | - | Wasitis, Chick | --NR-- |
44
| 'Chiquita' | Medium | Med-Green | - | - | Unknown | Pale-Lavender | July | Eisel, Mervin | .1979 |
45
| 'Chris' | Large | Yellow | - | - | Unknown | - | June into July | Schwarz, Jim & Schwarz, Karen | .2014 |
46
| 'Chris' China Star' | Medium | Light-Green | - | - | Hybrid | - | - | Brinkmann, Christina | --NR-- |
47
| 'Chris' Darkest Purple' | Medium | Light-Green | | | Hybrid | Deep-Purple | August to September | Brinkmann, Christina | --NR-- |
48
| 'Chris' Little Jewel' | | | | | Unknown | | | Brinkmann, Christina | --NR-- |
49
| 'Chris' Little Watermelon' | Small | Med-Green | | | Nat-Sport | Pale-Lavender | | Brinkmann, Christina | --NR-- |
50
| 'Chris' Mars Expedition' | Miniature | - | | - | Unknown | - | - | Brinkmann, Christina | --NR-- |
51
| 'Chris' Moving Ruffles' | Medium | Dark-Green | | | Unknown | Med-Lavender | | Brinkmann, Christina | --NR-- |
52
| 'Chris' Red Lightning' | Medium | Med-Green | | | Hybrid | | | Brinkmann, Christina | --NR-- |
53
| 'Chris' Small Talk' | Small | Med-Green | Marginal | Yellow | Nat-Sport | Pale-Lavender | | Brinkmann, Christina | --NR-- |
54
| 'Chris' Tropical Sundown' | Medium | Yellow | | | Hybrid | Med-Lavender | August to September | Brinkmann, Christina | --NR-- |
55
| 'Christopher Wayne' | Large | Blue/Green | - | - | Unknown | - | - | Aden, Paul | --NR-- |
56
| 'Chuck's Sweetheart' | Small | Med-Green | - | - | Unknown | Med-Lavender | - | Purtymun, Charles & Ruh, Peter & Ruh, Jean | .2009 |
57
| 'Ciandra' | Giant | Light-Green | - | - | Hybrid | Pure-White | June into July | Schulz, Ed | .2017 |
58
| 'Cinderella' | Large | Blue/Green | Marginal | Yellow | Sport | Near-White | June into July | Zilis, Mark & Schwarz, Jim | .2004 |
59
| 'Clarence' | Medium | Blue/Green | - | - | Hybrid | Near-White | June into July | Simpers, Lucille | .1996 |
60
| 'Claudia' | Medium | Med-Green | - | - | Hybrid | Light-Purple | July into August | Grenfell, Diana & Walek, Kevin & The American Hosta Society | .2009 |
61
| 'Clementine' | Small | Med-Green | - | - | Hybrid | Pale-Lavender | July | Husemann, Jim & Schulz, Ed | .2007 |
62
| 'Cleopatra' | Large | Med-Green | Marginal | Yellow | Unknown | Pale-Lavender | July into August | Harris, Robert | --NR-- |
63
| 'Cloretta' | Medium | Med-Green | Medial | White | Unknown | - | - | Woods, Doyle | --NR-- |
64
| 'Clyde's Birthday' | Large | Blue/Green | Streaked | White | Hybrid | - | - | Benedict, Dr Ralph (Herb) | --NR-- |
65
| 'Cody' | Miniature | Med-Green | Marginal | White | Hybrid | Light-Purple | July | Solberg, Robert | .1996 |
66
| 'Colesburg Danielle Marie' | - | - | - | - | Unknown | - | - | Hackbarth, Robert | --NR-- |
67
| 'Colesburg Julia Lynn' | Large | Med-Green | Streaked | Yellow | Unknown | - | - | Hackbarth, Robert | --NR-- |
68
| 'Colesburg Loren's Edge' | - | - | - | - | Sport | - | - | Hackbarth, Robert | --NR-- |
69
| 'Colesburg Sonny Boy' | Large | Dark-Green | Medial | Yellow | Sport | Pale-Lavender | July into August | Hackbarth, Robert | .2015 |
70
| 'Colesburg Tyler John' | Medium | Med-Green | Streaked | White | Unknown | Light-Purple | July | Hackbarth, Robert | --NR-- |
71
| 'Colleen Marie' | Large | Yellow | - | - | Hybrid | Pale-Lavender | June into July | Kwick, Charles | .2017 |
72
| 'Colleen's Heart' | Small | Med-Green | Streaked | Yellow | Unknown | - | - | Unknown | --NR-- |
73
| 'Commander Adama' | Medium | Med-Green | Marginal | White | Nat-Sport | Pale-Lavender | July into August | Rank, Stefan | --NR-- |
74
| 'Commander Cody' | Medium | Blue/Green | Streaked | White | Unknown | - | - | Purvis, Owen & Purvis, Sue | --NR-- |
75
| 'Connie' | Large | Yellow | Marginal | Greenish White | Sport | Near-White | June into July | Benedict, Dr Ralph (Herb) | .1987 |
76
| 'Connie Sue's Laurel' | Large | Med-Green | Marginal | Yellow | Unknown | - | - | Kinchen, Roger | --NR-- |
77
| 'Connie Sun' | Large | Yellow | - | - | Sport | Med-Lavender | July | Snyder, Ron | .2001 |
78
| 'Cool Hand Cam' | Medium | Dark-Green | - | - | Unknown | - | - | Schmidt, Bevie | --NR-- |
79
| 'Cool Hand Luke' | Large | Blue/Green | Marginal | Yellow | Sport | Near-White | June into July | Naylor Creek Nursery | --NR-- |
80
| 'Cora Marie' | Small | Dark-Green | Medial | White | Unknown | | | Shong, John | --NR-- |
81
| 'Cordelia' | Medium | Blue/Green | Marginal | White | Hybrid | Deep-Purple | July into August | Kuk, Bob | .1991 |
82
| 'Cory's Beauty' | Large | Blue/Green | Marginal | White | Sport | Near-White | June | Cory, Robert | .2004 |
83
| 'Cory's Sweetheart' | Large | Med-Green | Marginal | Blue-Green | Unknown | - | - | Cory, Robert | --NR-- |
84
| 'Cosmic Joy' | Large | Dark-Green | Marginal | Yellow | Hybrid | Pale-Lavender | June into July | Kuenster, Rod | .2012 |
85
| 'Cousin Lou Ann' | Large | Light-Green | - | - | Unknown | - | June into July | Zilis, Mark | .2010 |
86
| 'Cowboy Lemon Margarita' | Large | Light-Green | | | Unknown | | | Gamradt, John | --NR-- |
87
| 'Cracker Jack' | Small | Med-Green | Marginal | Yellow | TC Sport | Light-Purple | July into August | Zilis, Mark | .2011 |
88
| 'Craig Harlequin Bells' | Medium | Dark-Green | - | - | Unknown | Light-Purple | June into July | Craig, Jack & Ruh, Peter | .1998 .1999 |
89
| 'Craig's Temptation' | Small | Dark-Green | - | - | Hybrid | Light-Purple | July | Schenk, George & Ruh, Peter | .2002 |
90
| 'Crazy Daisy' | Large | Dark-Green | Medial | Yellow | Unknown | - | - | Goodwin, Randy | --NR-- |
91
| 'Crepe Suzette' | Miniature | Med-Green | Marginal | White | Hybrid | Pale-Lavender | July into August | Lachman, Wm & Lachman, Eleanor | .1986 |
92
| 'Crickett's Mountain Mist' | Large | Blue/Green | Streaked | White | Sport | Pale-Lavender | July into August | Bailey, Crickett | .2017 |
93
| 'Crinkled Joy' | Large | Blue/Green | - | - | Unknown | Near-White | July | Unknown | --NR-- |
94
| 'Crossroads Oscar' | Small | Med-Green | Marginal | White | Hybrid | Pale-Lavender | July | England, Tim | .2003 |
95
| 'Crossroads Steve' | Large | Med-Green | Marginal | Yellow | Hybrid | Pale-Lavender | July | England, Tim | .2003 |
96
| 'Cup of Grace' | Large | Dark-Green | - | - | Hybrid | - | July into August | Beilstein, Doug | .2009 |
97
| 'Curly' | Small | Blue/Green | Marginal | White | Hybrid | Light-Purple | July | Lachman, Wm & Lachman, Eleanor | .1991 |
98
| 'Cute Little Delores' | Small | Yellow | - | - | Unknown | - | July into August | Freeman, Franc | .2009 |
99
| 'Cynthia' | Large | Blue/Green | Streaked | Speckles | Unknown | Near-White | July into August | Tompkins, Chet | .1984 |
100
| 'Cynthia Ann' | - | - | - | - | Duplicate | - | - | Duplicate Name | --NR-- |
101
| 'Cynthia's Early Bird' | Small | Med-Green | Marginal | White | Unknown | - | - | Tompkins, Chet | --NR-- |
102
| 'Cynthia's Extra Special' | Small | Med-Green | Marginal | - | Unknown | - | - | Tompkins, Chet | --NR-- |
103
| 'Cynthia's Favorite' | - | - | - | - | Duplicate | - | - | Duplicate Name | --NR-- |
104
| 'Cyrus' | Giant | Dark-Green | - | - | Unknown | - | - | Wade, Van | --NR-- |
|