| No. | Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Season | Source | Registered |
|
1
| 'I am Lady Ruby' | Medium | Light-Green | | | Hybrid | July | Kwick, Charles | .2022 |
|
2
| 'I Bluit' | Medium | Blue/Green | | - | Unknown | July into August | Benedict, Dr Ralph (Herb) & Benedict, Dorothy & Kuenster, Rod | .2010 |
|
3
| 'I Dream of Jeanne' | Large | Yellow | | - | Hybrid | June into July | Barbee, T.R. (Dick) | .2017 |
|
4
| 'I Got Rhythm' | Large | Med-Green | Marginal | Yellow | Hybrid | June into July | Ward, Dr Dick & Ward, Jane | .2009 |
|
5
| 'Ian Winslow' | Medium | Yellow | Marginal | Green | Sport | July into August | Stark, Gunther & Stark, Dean | --NR-- |
|
6
| 'Ian's Crystal Ball' | Small | Blue/Green | Marginal | Yellow | Hybrid | June into July | Chrystal, Ian & Colley, June & Baker, John | .2020 |
|
7
| 'Ice Cream' | Medium | Med-Green | Marginal | Greenish White | Sport | July | Rossing, Richard | .1998 |
|
8
| 'Ice Cream Streaked' | Medium | Med-Green | Streaked | Yellow | Sport | July | Unknown | --NR-- |
|
9
| 'Ice Crystals' | Medium | Yellow | Marginal | White | Unknown | July | Klotz, Ruby & Klotz, B. | .2020 |
|
10
| 'Ice Cube' | Miniature | Med-Green | Marginal | White | Sport | July | Fransen, Marco | --NR-- |
|
11
| 'Ice Follies' | Large | Dark-Green | Marginal | White | Sport | July | Meyer, Bill | --NR-- |
|
12
| 'Ice King' | Small | Dark-Green | Medial | White | Sport | July | Kwick, Charles | .2019 |
|
13
| 'Ice Prancer' | Large | Blue/Green | | - | Hybrid | July | Sawyer, Rick | --NR-- |
|
14
| 'Ice Queen' | Small | Med-Green | Marginal | White | Hybrid | June into July | Kwick, Charles | .2016 |
|
15
| 'Iceberg' | Large | Med-Green | Marginal | White | Hybrid | July into August | Avent, Tony | .2000 |
|
16
| 'Iced Lemon' | Miniature | Light-Green | Marginal | White | Sport | July | Batten, Hamish & Ruh, Peter & Ruh, Jean | --NR-- |
|
17
| 'Ichabod Crane' | Large | Med-Green | | - | Hybrid | June into July | Balitewicz, Bob | --NR-- |
|
18
| 'Ichi-ban' | Miniature | Med-Green | Medial | White | Hybrid | July | Hirose, Yoshimichi & Zilis, Mark | .2003 |
|
19
| 'Icicle' | Small | Dark-Green | Medial | White | Sport | June into July | Fischer, Dr Ullrich | --NR-- |
|
20
| 'Icy Fog' | Medium | Dark-Green | Medial | White | Sport | June into July | Wilson, Chris | --NR-- |
|
21
| 'Icy Halo' | Large | Med-Green | Marginal | White | Sport | July | Tomashek, Cindy | .2014 |
|
22
| 'Iggie' | Medium | Yellow | | - | Unknown | July | Benedict, Dr Ralph (Herb) | --NR-- |
|
23
| 'I'll Fly Away' | Medium | Blue/Green | | | Hybrid | June into July | McDonell, Harold | .2021 |
|
24
| 'Illicit Affair' | Small | Med-Green | Marginal | Yellow | Sport | July | Anderson, Jim | .2003 |
|
25
| 'Ilona' | Large | Blue/Green | Medial | White | Sport | July into August | Heemskerk, Gerardus | .2011 |
|
26
| 'I'm My Kid's Mom' | Medium | Med-Green | Streaked | White | Hybrid | July into August | Elslager, Ed | .2003 |
|
27
| 'I'm So Pretty' | Large | Blue/Green | | - | Sport | July | Schwarz, Jim | .2003 |
|
28
| 'Immense' | Giant | Dark-Green | | - | Hybrid | July | Ruh, Peter | .1991 |
|
29
| 'Imp' | Miniature | Med-Green | Marginal | Creamy White | Hybrid | July into August | Hansen, Hans | .2006 |
|
30
| 'Impact' | Medium | Med-Green | Marginal | White | Unknown | July | Lydell, Ransom | --NR-- |
|
31
| 'Imperial Dragon' | Large | Dark-Green | Medial | White | Sport | June into July | Schwarz, Jim | .2011 |
|
32
| 'Imperial Moth' | Medium | Light-Green | | - | Unknown | July | Seaver, Mildred | .2004 |
|
33
| 'Imperial Palace' | Large | Dark-Green | Medial | Yellow | Hybrid | June into July | Ward, Dr Dick & Ward, Jane | .2009 |
|
34
| 'Imperial Potentate' | Large | Med-Green | Streaked | Speckles | Sport | July into August | Benedict, Dr Ralph (Herb) & Benedict, Dorothy | .1999 |
|
35
| 'Impressive Reject' | Large | Med-Green | | - | Hybrid | June into July | Kwick, Charles | .2019 |
|
36
| 'In the Ruff' | Medium | Light-Green | | - | Sport | July | Unknown | --NR-- |
|
37
| 'Inca Sun' | Large | Yellow | | - | Unknown | June into July | Goodwin, Randy | .2000 |
|
38
| 'Incognito' | Large | Blue/Green | Marginal | Yellow | Sport | July into August | Struhar, Bill | .2006 |
|
39
| 'Incoming' | Medium | Dark-Green | | - | Hybrid | July | Deckert, Emile & Deckert, Jane | .2004 |
|
40
| 'Incredible' | Giant | Blue/Green | Marginal | Chartreuse | Unknown | June into July | Benedict, Dr Ralph (Herb) | --NR-- |
|
41
| 'Incredible Hulk' | Giant | Dark-Green | | - | Unknown | July | Elslager, Ed | .1998 |
|
42
| 'Incredible Hunk' | Giant | Blue/Green | | - | Unknown | July | Elslager, Ed | .1998 |
|
43
| 'Independence Day' | Giant | Med-Green | Marginal | Yellow | Sport | July | Wade, Van | .1998 |
|
44
| 'Indian Feather' | Small | Med-Green | Medial | White | Hybrid | July | Owens, Clarence | .1992 |
|
45
| 'Indian Summer' (Goodwin) | Small | Yellow | Marginal | White | Sport | July into August | Goodwin, Randy | .2006 |
|
46
| 'Indiana Blue' | Medium | Blue/Green | | - | Unknown | July into August | Balitewicz, Bob | --NR-- |
|
47
| 'Indiana Knight' | Medium | Med-Green | Marginal | Chartreuse | Sport | July | Goodwin, Randy | .1990 |
|
48
| 'Indiana Moonshine' | Large | Yellow | | - | Sport | July | Harstad, Carolyn | .1996 |
|
49
| 'Indianapolis Blue' | Large | Blue/Green | | - | Hybrid | June into July | Wade, Van | .2007 |
|
50
| 'Indigo' | Medium | Blue/Green | | - | Hybrid | July | Savory, Robert | .1984 |
|
51
| 'Indy Finish Line' | Medium | Med-Green | Medial | Creamy White | Hybrid | July into August | Whitmore, Bob & Goodwin, Randy | .2005 |
|
52
| 'Inkwell' | Miniature | Dark-Green | | - | Sport | July | Green Mountain Hosta | --NR-- |
|
53
| 'Inky Dinky' | Medium | Light-Green | | - | Sport | July | Trucks, Gary | --NR-- |
|
54
| 'Innisglow' | Medium | Yellow | | - | TC Sport | June into July | Zilis, Mark & Walek, Kevin & The American Hosta Society | .2009 |
|
55
| 'Innisjade' | Medium | Dark-Green | | - | TC Sport | June into July | Zilis, Mark & Walek, Kevin & The American Hosta Society | .2009 |
|
56
| 'Intaglio' | Small | Med-Green | Marginal | Yellow | Hybrid | July | Malloy, Alex | --NR-- |
|
57
| 'Interstate 71' | Large | Blue/Green | | - | Sport | June into July | Beilstein, Doug & Zilis, Mark | .2009 |
|
58
| 'Intrigue' | Medium | Med-Green | Streaked | - | Hybrid | July | Aden, Paul | .1978 |
|
59
| 'Intrigue Green' | Large | Med-Green | | - | Sport | July | Wade, Van | --NR-- |
|
60
| 'Introvert' | Small | Blue/Green | Marginal | White | Sport | July | Philips, Hugo | --NR-- |
|
61
| 'Invocation' | Large | Light-Green | Marginal | White | Hybrid | July into August | Lysne, Rod | .2021 |
|
62
| 'Iona' | Medium | Blue/Green | Marginal | White | Sport | July | Lavender & British Hosta and Hemerocallis Society | .1988 |
|
63
| 'Iowa Hawkeye' | Medium | Dark-Green | Medial | Yellow | Sport | July into August | McBurney, Jim & McBurney, Lois & Kuenster, Rod | .2006 |
|
64
| 'Iowa Moon' | Medium | Yellow | Marginal | Light Green | Sport | July into August | Simmering, Ron | .2000 |
|
65
| 'Iris Frazier' | Large | Blue/Green | Medial | Yellow | Sport | June into July | Solberg, Robert | .2006 |
|
66
| 'Irische See' | Medium | Blue/Green | | - | Hybrid | July | Klose, Heinz & Ruh, Peter | .1998 |
|
67
| 'Irish Cream' | Large | Blue/Green | | - | Sport | July into August | Thompson, Rick & Thompson, Criss | --NR-- |
|
68
| 'Irish Fling' | Small | Med-Green | Marginal | Yellow | Hybrid | July | Ward, Dr Dick & Ward, Jane | .2012 |
|
69
| 'Irish Hills' | Giant | Dark-Green | | - | Sport | July into August | Anderson, Kenneth | .1996 |
|
70
| 'Irish Jig' | Medium | Dark-Green | Marginal | White | Hybrid | July into August | Ward, Dr Dick & Ward, Jane | .2012 |
|
71
| 'Irish Luck' | Large | Dark-Green | | - | Hybrid | July into August | Lalonde, Irene | .2007 |
|
72
| 'Irish Mist' | Small | Dark-Green | Medial | White | Hybrid | July | Savory, Robert | .1994 |
|
73
| 'Irish Moss' | Medium | Med-Green | | - | Unknown | July | Deckert, Emile & Deckert, Jane | .2004 |
|
74
| 'Irish Pastures' | Medium | Light-Green | Marginal | White | Sport | July into August | Goodwin, Randy | .2006 |
|
75
| 'Irish Spring' | Medium | Med-Green | Streaked | Yellow | Unknown | July | Savory, Robert | .1985 |
|
76
| 'Iron Curtain' | Medium | Blue/Green | | - | Hybrid | June into July | Asch, Stuart | .2000 |
|
77
| 'Iron Gate Delight' | Medium | Dark-Green | Marginal | White | Hybrid | July into August | Sellers, Van | .1981 |
|
78
| 'Iroquois' | Large | Blue/Green | | - | Hybrid | July | Wade, Van | .2007 |
|
79
| 'Island Breeze' | Medium | Med-Green | Medial | Yellow | TC Sport | July into August | Diaz, Ariel & Hansen, Hans & Walters Gardens | .2014 |
|
80
| 'Island Charm' | Small | Med-Green | Medial | White | Hybrid | July | Rassmussen, George & Malloy, Alex | .1997 |
|
81
| 'Island Fling' | Medium | Blue/Green | Marginal | Yellow | Sport | July into August | Blake, Amanda | .2016 |
|
82
| 'Island Flourish' | Medium | Light-Green | | - | Hybrid | June into July | Blake, Amanda | .2016 |
|
83
| 'Island Forest' | Large | Med-Green | | - | Unknown | July | Hatfield, Handy | --NR-- |
|
84
| 'Island Forest Gem' | Large | Dark-Green | | - | Unknown | July | Carpenter, Kate & Walek, Kevin & The American Hosta Society | .2009 |
|
85
| 'Island Heartbreaker' | Large | Blue/Green | | - | Unknown | July into August | Blake, Amanda | .2016 |
|
86
| 'Island Queen' | Small | Med-Green | Medial | White | Unknown | June into July | Rassmussen, George | --NR-- |
|
87
| 'Island Velvet' | Medium | Dark-Green | | - | Unknown | July into August | Blake, Amanda | .2016 |
|
88
| 'Isle Royal' | Large | Med-Green | | - | Hybrid | July | Wilkins, Dr Jim | .2000 |
|
89
| 'Iszat U Doc' | Medium | Med-Green | | - | Hybrid | July into August | Benedict, Dr Ralph (Herb) & Walek, Kevin & The American Hosta Society | .2009 |
|
90
| 'It' | Medium | Med-Green | Streaked | Speckles | Sport | July into August | Solberg, Robert | --NR-- |
|
91
| 'It Rocks' | Large | Dark-Green | Marginal | White | Hybrid | June into July | Elslager, Ed | .2004 |
|
92
| 'Itasca' | Medium | Med-Green | Streaked | Yellow | Sport | July into August | Johnson, Arthur H. | .1974 |
|
93
| 'Itsy Bitsy Spider' | Miniature | Dark-Green | | - | Hybrid | July into August | Johnson, Greg | .2004 |
|
94
| 'Itty Bitty' | Miniature | Dark-Green | Medial | White | Sport | June into July | Zilis, Mark | .2010 |
|
95
| 'Itty Blue' | Small | Blue/Green | | - | TC Sport | July into August | Zilis, Mark | .2011 |
|
96
| 'Itty Gold' | Small | Yellow | | - | Sport | June into July | Zilis, Mark | .2010 |
|
97
| 'Itty Rainbow' | Small | Yellow | Streaked | Green | Sport | June into July | Zilis, Mark | .2012 |
|
98
| 'Iva Delight' | Medium | Med-Green | Medial | White | Sport | July into August | Lisik, Philip | .2003 |
|
99
| 'Ivory Coast' | Large | Dark-Green | Marginal | White | Sport | July | Savory, Dennis | .1999 |
|
100
| 'Ivory Frame' | Medium | Med-Green | Marginal | White | Nat-Sport | July into August | Van Eechaute, Danny | --NR-- |
|
101
| 'Ivory Necklace' | Medium | Med-Green | Marginal | White | TC Sport | July | Zilis, Mark | .2003 |
|
102
| 'Ivory Pixie' | Miniature | Med-Green | Medial | White | Sport | July | Seaver, Mildred | .1982 |
|
103
| 'Ivory Snow' | Small | Dark-Green | Medial | White | Unknown | July into August | Goodwin, Randy | .2019 |
|
104
| 'Ivory Tower' | Giant | Yellow | | - | Hybrid | June into July | Ward, Dr Dick & Ward, Jane | .1996 |
|
105
| 'Ivy Parody' | Medium | Blue/Green | Marginal | White | Sport | July into August | Braun-Nauerz, Gaby & Warmerdam, Piet | .2003 |
|