| No. | Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Season | Source | Registered |
|
1
| 'Kabitan' | Small | Yellow | Marginal | Green | Sport | August | Maekawa, Dr Fumio | .1987 |
|
2
| 'Kalamazoo' | Medium | Dark-Green | Marginal | White | Sport | July into August | Linneman, Jeroen | .2008 |
|
3
| 'Kaleidochrome' | Small | Dark-Green | Streaked | Yellow | Hybrid | July into August | Unknown & Zilis, Mark | .2009 .2018 |
|
4
| 'Kanzi' | Miniature | Med-Green | Marginal | Yellow | Sport | July into August | Wittebol, R. & Van Eechaute, Danny | --NR-- |
|
5
| 'Karamoosh' | Large | Dark-Green | Marginal | White | Hybrid | July into August | Kuk, Bob | .2008 |
|
6
| 'Karen Marie' | Large | Dark-Green | Medial | White | Nat-Sport | July into August | Philips, Hugo | --NR-- |
|
7
| 'Katherine Lewis' | Small | Yellow | Marginal | Blue-Green | Hybrid | July into August | Lewis, Alan | --NR-- |
|
8
| 'Kathie Sisson' | Large | Blue/Green | Streaked | White | Hybrid | July into August | Goodenough, Rick | --NR-- |
|
9
| 'Kathleen' | Medium | Med-Green | - | - | Hybrid | August | Williams, Frances | .1986 |
|
10
| 'Kathy's Clown' | Large | Dark-Green | Medial | Yellow | Sport | July into August | Ripperger, Kathy | .2008 |
|
11
| 'Katrina Jo' | Large | Med-Green | - | - | Hybrid | August | Nyikos, Frank | .1998 |
|
12
| 'Katsuragawa Beni' | Medium | Med-Green | - | - | Unknown | August to October | Masoka, Hiroshi | --NR-- |
|
13
| 'Kayleigh's Sunshine' | Small | Yellow | - | - | Sport | July into August | Sully, Marcia | .2014 |
|
14
| 'Keel' | Giant | Blue/Green | - | - | Hybrid | June into August | Gilligan, Madelon | .2012 |
|
15
| 'Keikoku' | Small | Med-Green | Streaked | White | Nat-Sport | August to September | Unknown | --NR-- |
|
16
| 'Kelsey' | Medium | Med-Green | - | - | Hybrid | August to October | Williams, Frances & Ruh, Peter | .1996 |
|
17
| 'Kempen Red Twist' | Large | Med-Green | Streaked | White | Hybrid | July into August | Butaye, Patrick | .2014 |
|
18
| 'Kempen Sky High' | Medium | Blue/Green | - | - | Hybrid | July into August | Butaye, Patrick | .2015 |
|
19
| 'Kempen Sorbet' | Medium | Yellow | | | Nat-Sport | August to September | Butaye, Patrick | --NR-- |
|
20
| 'Kenzie' | Small | Med-Green | Marginal | White | Hybrid | July into August | Harris, Ken | .2007 |
|
21
| 'Kermit' | Small | Med-Green | Marginal | White | Hybrid | July into August | Lydell, Ransom | --NR-- |
|
22
| 'Kerplunk' | Medium | Yellow | - | - | Hybrid | August | Benedict, Dr Ralph (Herb) & Ruh, Peter | .2005 |
|
23
| 'Keuka Kiss' | Large | Dark-Green | - | - | Hybrid | July into August | Brandt-Sorheim, Peter & McElwee, Molly | .2002 |
|
24
| 'Key Lime' | Medium | Light-Green | - | - | Unknown | July into August | Banyai, Pauline & Banyai, Bruce | .1990 |
|
25
| 'Key West Sunset' | Small | Light-Green | - | - | Unknown | July into August | Ward, Dr Dick & Ward, Jane | .2013 |
|
26
| 'Khaki Krush' | Giant | Med-Green | - | - | Hybrid | July into August | Heims, Dan | --NR-- |
|
27
| 'Kifu Hime' | Large | Med-Green | - | - | Sport | August to September | Longwood Gardens | --NR-- |
|
28
| 'Kifukurin Hyuga' | Small | Blue/Green | Marginal | Yellow | Nat-Sport | August to September | Unknown & Ruh, Peter | .2002 .2018 |
|
29
| 'Kifukurin Ko Mame' | Miniature | Med-Green | Marginal | White | Sport | August to September | Watanabe, Kenji & Ruh, Peter | .2002 .2018 |
|
30
| 'Kifukurin Koba' | Small | Med-Green | Marginal | Yellow | Sport | August | Unknown | --NR-- |
|
31
| 'Kifukurin Ubatake' | Miniature | Dark-Green | Marginal | White | Sport | August | Unknown & Ruh, Peter | .2002 .2018 |
|
32
| 'Kifukurin', H. kikutii | Medium | Med-Green | Marginal | Yellow | Duplicate | August to September | Unknown | --NR-- |
|
33
| 'Kim She' | Small | Med-Green | Marginal | Yellow | Hybrid | August | Avent, Tony | --NR-- |
|
34
| 'Kim Sue' | Medium | Med-Green | Streaked | Yellow | Unknown | August to September | Freeman, Franc | .2009 |
|
35
| 'Kinakafu Aki' (Japan 1) | Medium | Med-Green | - | - | Sport | August to September | Unknown | --NR-- |
|
36
| 'Kinakafu Aki' (Japan 2) | - | Med-Green | Medial | White | Sport | August to September | Unknown | --NR-- |
|
37
| 'Kinakafu Tachi' | Medium | Med-Green | Medial | Yellow | Sport | August | Unknown | --NR-- |
|
38
| 'Kinba' | Large | Med-Green | - | - | Hybrid | August to September | Watanabe, Kenji & Walek, Kevin & The American Hosta Society | .2009 |
|
39
| 'Kinbotan' | Miniature | Med-Green | Marginal | Yellow | Sport | August to September | Unknown & Ruh, Peter | .2002 .2018 |
|
40
| 'Kinbuchi Tachi' | Large | Dark-Green | Marginal | White | Sport | August to September | Unknown & Ruh, Peter | .2002 .2018 |
|
41
| 'King David' | Medium | Blue/Green | - | - | Hybrid | July into August | Zolock, Steve & Zolock, Sarah | .2001 |
|
42
| 'King John' | Giant | Blue/Green | - | - | Sport | July into August | Schwarz, Jim | .2010 |
|
43
| 'King of Spades' | Medium | Dark-Green | - | - | Hybrid | August to October | Beilstein, Doug & Beilstein, Mardy | .2007 |
|
44
| 'King of the Hill' | Giant | Blue/Green | Streaked | Yellow | Hybrid | July into August | Elslager, Ed | .2005 |
|
45
| 'King Tucker' | Giant | Dark-Green | - | - | Hybrid | August to September | Kwick, Charles | .2016 |
|
46
| 'Kingfisher' | Medium | Blue/Green | - | - | Unknown | August to October | Smith, Eric & British Hosta and Hemerocallis Society | .1988 |
|
47
| 'King's Black Knight' | Large | Dark-Green | - | - | Hybrid | July into August | King, Herb & King, Gladys | .2006 |
|
48
| 'King's Ransom' | Medium | Light-Green | - | - | Hybrid | July into August | Dean, Don | .1999 |
|
49
| 'Kinki' | Large | Yellow-Gold | - | - | Unknown | July into August | Ruh, Peter | .2002 .2018 |
|
50
| 'Kinky Boots' | Medium | Blue/Green | Marginal | White | Sport | July into August | Dean, Don | .2014 |
|
51
| 'Kinokawa Unazuki' | Medium | Med-Green | Streaked | Speckles | Sport | August to September | Unknown | --NR-- |
|
52
| 'Kinu Akari' | Medium | Dark-Green | - | - | Sport | August to September | Unknown | --NR-- |
|
53
| 'Kinugawa Nishiki Iwa' | Small | Med-Green | Medial | Yellow | Sport | August to September | Suzuki, Kichigoro | --NR-- |
|
54
| 'Kinuito Gumo' | Medium | Dark-Green | Marginal | White | Sport | August to September | Unknown | --NR-- |
|
55
| 'Kinu-no-yuki' | Medium | Med-Green | Medial | White | Hybrid | August to September | Unknown | --NR-- |
|
56
| 'Kirk's Gold' | Medium | Yellow | - | - | TC Sport | July into August | Zilis, Mark | .2009 |
|
57
| 'Kishiro-nakafu Hyūga' | Medium | Dark-Green | - | - | Sport | August to September | Unknown | --NR-- |
|
58
| 'Kishiro-nakafu Unazuki' | Medium | Med-Green | - | - | Sport | August to September | Unknown | --NR-- |
|
59
| 'Kishiro-shimafu Unazuki' | Medium | Med-Green | - | - | Sport | August to September | Unknown | --NR-- |
|
60
| 'Kiss and Surrender' | Medium | Light-Green | - | - | Hybrid | August to September | Kwick, Charles | .2018 |
|
61
| 'Kiss of Innocence' | Miniature | Yellow-Gold | | - | Hybrid | August | Kwick, Charles | .2020 |
|
62
| 'Kisserina' | Small | Yellow | - | - | Hybrid | July into August | Kwick, Charles | .2017 |
|
63
| 'Kissing Cousin' | Medium | Blue/Green | Marginal | White | Sport | July into August | Elslager, Ed | .1998 |
|
64
| 'Kisuji' | Medium | Light-Green | Streaked | Yellow | Sport | August | Unknown | --NR-- |
|
65
| 'Kitty Hawk' | Medium | Yellow | - | - | Hybrid | August | Herold, Roy | .2000 |
|
66
| 'Kiwi Black Magic' | Large | Dark-Green | - | - | Hybrid | July into August | Sligh, Barry | .1999 |
|
67
| 'Kiwi Blue Marble' | Large | Blue/Green | Streaked | Yellow | Sport | July into August | Sligh, Barry | --NR-- |
|
68
| 'Kiwi Classic' | Medium | Blue/Green | Medial | Yellow | Sport | July into August | Sligh, Barry | --NR-- |
|
69
| 'Kiwi Cream Edge' | Medium | Yellow | Marginal | White | Unknown | July into August | Jury, Felix & Walek, Kevin & The American Hosta Society | .2009 |
|
70
| 'Kiwi Crinkles' | Medium | Med-Green | - | - | Hybrid | August | Sligh, Barry | --NR-- |
|
71
| 'Kiwi Dotterel' | Large | Light-Green | Marginal | White | Sport | July into August | Sligh, Barry | --NR-- |
|
72
| 'Kiwi Emerald' | Medium | Dark-Green | - | - | Hybrid | July into August | Sligh, Barry | .1999 |
|
73
| 'Kiwi Gold Star' | Small | Yellow | - | - | Sport | August | Sligh, Barry | .1999 |
|
74
| 'Kiwi Hippo' | Large | Med-Green | - | - | Hybrid | July into August | Sligh, Barry | .1999 |
|
75
| 'Kiwi Jordan' | Small | Blue/Green | - | - | Unknown | August | Sligh, Barry | .2000 |
|
76
| 'Kiwi Kaniere Gold' | Large | Yellow | - | - | Sport | July into August | Sligh, Barry | .1999 |
|
77
| 'Kiwi Leap Frog' | Large | Dark-Green | Medial | White | Hybrid | July into August | Sligh, Barry | --NR-- |
|
78
| 'Kiwi Minnie Blue' | Miniature | Blue/Green | - | - | Hybrid | July into August | Sligh, Barry | .1999 |
|
79
| 'Kiwi Skyscraper' | Large | Blue/Green | - | - | Hybrid | July into August | Sligh, Barry | --NR-- |
|
80
| 'Kiwi Splash' | Medium | Med-Green | Marginal | White | Sport | July into August | Sligh, Barry | .1999 |
|
81
| 'Kiwi Summer Haze' | Small | Blue/Green | - | - | Unknown | July into August | Sligh, Barry | --NR-- |
|
82
| 'Kiwi Sunlover' | Large | Yellow | - | - | Sport | July into August | Sligh, Barry | .1999 |
|
83
| 'Kiwi Tease' | Large | Med-Green | Marginal | White | Sport | July into August | Sligh, Barry | .2000 |
|
84
| 'KL's Choice' | Medium | Blue/Green | Marginal | White | Hybrid | July into August | Sully, Marcia | .2014 |
|
85
| 'Knight's Journey' | Medium | Med-Green | Marginal | White | Sport | July into August | Malloy, Alex | .2002 |
|
86
| 'Ko Seto' | Medium | Med-Green | - | - | Unknown | August | Watanabe, Kenji | .2002 |
|
87
| 'Komame' | Miniature | Med-Green | - | - | Sport | August | Unknown | --NR-- |
|
88
| 'Komyo Nishiki' | Small | Med-Green | Medial | White | Sport | August to October | Unknown | --NR-- |
|
89
| 'Korean Snow' | Medium | Med-Green | Streaked | Creamy White | Hybrid | August | Niche Gardens & Solberg, Robert | .1999 |
|
90
| 'Koriyama' | Medium | Med-Green | Marginal | White | Sport | August | Unknown | --NR-- |
|
91
| 'Kosugidani' | Medium | Med-Green | - | - | Unknown | August | Unknown | --NR-- |
|
92
| 'Kotei' | Large | Blue/Green | Marginal | Yellow | TC Sport | July into August | Unknown | --NR-- |
|
93
| 'Koufuu' | Medium | Dark-Green | Streaked | White | Sport | August to September | Unknown | --NR-- |
|
94
| 'Krossa Cream Edge' | Small | Med-Green | Marginal | White | Unknown | August | Krossa, Gus | .1997 |
|
95
| 'Krossa Regal' | Giant | Blue/Green | - | - | Hybrid | July into August | Krossa, Gus & Summers, Alex | .1980 |
|
96
| 'Krossa Regal Splashed' | Giant | Blue/Green | Streaked | White | Sport | July into August | Miller, Jeff | --NR-- |
|
97
| 'Krossa Regal Streaked' | Giant | Blue/Green | Streaked | White | Sport | July into August | Lydell, Ransom | --NR-- |
|
98
| 'Krossa Regal White Variegation' | Giant | Blue/Green | Streaked | White | TC Sport | July into August | Ruh, Peter | --NR-- |
|
99
| 'Krossa Regal Yellow Variegation' | Giant | Blue/Green | Streaked | Yellow | TC Sport | July into August | Ruh, Peter | --NR-- |
|
100
| 'Kryptonite' | Medium | Dark-Green | - | - | Sport | July into August | Tramposch, Kurt & Walek, Kevin & The American Hosta Society | .2009 |
|
101
| 'Kwick, Kwik, Quick, Mabel' | Large | Dark-Green | | | Hybrid | July into August | Kwick, Charles | .2021 |
|
102
| 'Kwickdraw' | Large | Med-Green | | | Hybrid | July into August | Kwick, Charles | .2022 |
|
103
| 'Kwick's Ladder of Emerald Hearts' | Medium | Med-Green | | | Hybrid | July into August | Kwick, Charles | .2022 |
|
104
| 'Kyoto' | Medium | Med-Green | - | - | Hybrid | August to October | Sugita, Hajime & Ruh, Peter | .2001 |
|