Medium Size Hostas | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
'Kabuki' | Blue/Green | Marginal | White | Unknown | Pale-Lavender | July | Johnson, Greg | .2004 |
'Kalamazoo' | Dark-Green | Marginal | White | Nat-Sport | Med-Lavender | July into August | Linneman, Jeroen | .2008 |
'Karen' | Med-Green | Marginal | Creamy White | Unknown | Pale-Lavender | July | Olson, Dr Robert | .1999 |
'Karenka' | Med-Green | - | - | Hybrid | Pure-White | - | Sugita, Hajime | --NR-- |
'Karen's Delight' | Yellow | Marginal | White | Nat-Sport | Deep-Purple | June into July | Sully, Marcia | .2014 |
'Karin' | Med-Green | Marginal | White | Nat-Sport | Pale-Lavender | July | Heemskerk, Gerardus | .2005 |
'Kasahara Nishiki' | Med-Green | Streaked | Speckles | Nat-Sport | Near-White | June into July | Unknown | --NR-- |
'Kasseler Blue' | Blue/Green | - | - | Unknown | - | - | Klose, Heinz & Ruh, Peter & Jean | .2008 |
'Kasseler Gold' | Yellow | - | - | Hybrid | Pale-Lavender | June into July | Klose, Heinz & Ruh, Peter & Jean | .2003 |
'Katana' | Blue/Green | - | - | Hybrid | - | - | Meyer, Bill | --NR-- |
'Katherine S. Mahoney' | Med-Green | - | - | Unknown | Pale-Lavender | September to October | Chamberlain, Steve | .2006 |
'Kathleen' | Med-Green | - | - | Hybrid | Med-Lavender | August | Williams, Frances | .1986 |
'Kathy-O' | Med-Green | Streaked | White | Nat-Sport | Med-Lavender | July | O'Donnell, Donald | .1994 |
'Katie Q' | Blue/Green | Marginal | Yellow | TC Sport | Pale-Lavender | June | Zilis, Mark | .2003 |
'Katsuragawa Beni' | Med-Green | - | - | Unknown | Light-Purple | August to October | Masoka, Hiroshi | --NR-- |
'Kayla Marie' | Med-Green | Streaked | White | Unknown | - | June into July | Boak, Tim | .2012 |
'Kazaguruma' | - | - | - | Hybrid | - | - | Sneyers, Rob | --NR-- |
'Keep it Dark' | Dark-Green | - | - | Unknown | - | - | Gilligan, Madelon | --NR-- |
'Kelsey' | Med-Green | - | - | Hybrid | Pale-Lavender | August to October | Williams, Frances & Ruh, Peter | .1996 |
'Kemm Glo' | Dark-Green | Marginal | White | Unknown | - | - | Kemm, Carl | --NR-- |
'Kempen Cream Star' | - | - | - | Hybrid | - | - | Butaye, Patrick | --NR-- |
'Kempen Lutino Bird' | Med-Green | - | - | Unknown | - | - | Butaye, Patrick | --NR-- |
'Kempen Salad Bar' | Med-Green | Streaked | White | Hybrid | - | - | Butaye, Patrick | --NR-- |
'Kempen Saw Blade' | Med-Green | Streaked | White | Hybrid | - | July | Butaye, Patrick | --NR-- |
'Kempen Sky High' | Blue/Green | - | - | Hybrid | Light-Purple | July into August | Butaye, Patrick | .2015 |
'Kempen Waving Shadow' | Light-Green | - | - | Hybrid | - | - | Butaye, Patrick | --NR-- |
'Kempton Run' | Med-Green | Marginal | White | Hybrid | Pale-Lavender | June into July | Ward, Dr Dick & Jane | .2011 |
'Ken Marek' | Med-Green | Medial | Yellow | Unknown | - | - | Livingston, Ron | --NR-- |
'Kerfuffle' | Light-Green | Marginal | Yellow | Nat-Sport | Light-Purple | July | Zilis, Mark | .2011 |
'Kerplunk' | Yellow | - | - | Hybrid | Pale-Lavender | August | Benedict, Dr R. (Herb) & Ruh, Peter | .2005 |
'Kevin Vaughn' | Med-Green | Streaked | White | Nat-Sport | Pale-Lavender | June into July | Lachman, Wm & Eleanor | --NR-- |
'Key Largo' | Med-Green | Streaked | Yellow | Nat-Sport | - | - | Malloy, Alex | --NR-- |
'Key Lime' | Light-Green | - | - | Unknown | Pale-Lavender | July into August | Banyai, Pauline & Banyai, Bruce | .1990 |
'Key Lime Pie' | Med-Green | Marginal | Yellow | Nat-Sport | Light-Purple | July | Hansen, Hans | .2003 |
'Ki Hachijo' | Yellow | - | - | Hybrid | - | - | Unknown | --NR-- |
'Kickapoo Krinkles' | Med-Green | Streaked | Yellow | Nat-Sport | Near-White | June into July | Goodwin, Randy | .2013 |
'Kifukurin Alcebana' | Med-Green | Marginal | White | Unknown | - | - | Unknown | --NR-- |
'Kifukurin Nankai' | Dark-Green | Marginal | Yellow | Nat-Sport | Light-Purple | September | Unknown | --NR-- |
'Kifukurin Tachi' | Med-Green | Marginal | Yellow | Unknown | - | - | Unknown | --NR-- |
'Kifukurin Urajiro Hyuga' | Med-Green | Marginal | Yellow | Unknown | Near-White | - | Unknown | --NR-- |
'Kifukurin', H. kikutii | Med-Green | Marginal | Yellow | Nat-Sport | Pale-Lavender | August to September | Unknown | --NR-- |
'Kikapoo' | Light-Green | - | - | Unknown | - | - | Wade, Van | --NR-- |
'Kilauea' | Med-Green | - | - | Hybrid | Med-Lavender | July | Elslager, Ed | .2001 |
'Kilowatt' | Med-Green | - | - | Hybrid | Light-Purple | July | Armstrong, Maxine | .1970 |
'Kim Sue' | Med-Green | Streaked | Yellow | Unknown | Near-White | August to September | Freeman, Franc | .2009 |
'Kinakafu Tachi' | Med-Green | Medial | Yellow | Nat-Sport | Light-Purple | August | Unknown | --NR-- |
'King Cobra' | Light-Green | - | - | Hybrid | Pale-Lavender | June into July | Scheer, Alttara & Gilligan, Madelon | .2015 |
'King Crimson' | Med-Green | - | - | Unknown | - | - | Unknown | --NR-- |
'King David' | Blue/Green | - | - | Hybrid | Near-White | July into August | Zolock, Steve & Sarah | .2001 |
'King Edward' | Dark-Green | - | - | Unknown | - | - | Crockett, Clyde | --NR-- |
'King of Buchanan' | Med-Green | Marginal | Yellow | Hybrid | Near-White | June into July | Groothius, Mike | .2019 |
'King of Spades' | Dark-Green | - | - | Hybrid | Med-Lavender | August to October | Beilstein, Doug & Mardy | .2007 |
'King Oil' | Yellow | - | - | Hybrid | - | - | Beilstein, Doug & Malloy, Alex | --NR-- |
'Kingfisher' | Blue/Green | - | - | Unknown | Pale-Lavender | August to October | Smith, Eric & BHHS | .1988 |
'King's Accomplice' | Med-Green | Marginal | Yellow | Unknown | - | - | King, Herb | --NR-- |
'King's Beguiler' | Yellow | Marginal | Green | Unknown | - | - | King, Herb | --NR-- |
'King's Brute' | Blue/Green | - | - | Unknown | - | - | King, Herb | --NR-- |
'King's Coat of Many Colors' | Dark-Green | Marginal | Yellow | Unknown | - | - | King, Herb | --NR-- |
'King's Cohort' | Med-Green | Marginal | White | Unknown | - | - | King, Herb | --NR-- |
'King's Conjurer' | Med-Green | Marginal | Yellow | Unknown | - | - | King, Herb | --NR-- |
'King's Courtesan' | Med-Green | Streaked | Yellow | Unknown | - | - | King, Herb | --NR-- |
'King's Defiance' | Med-Green | - | - | Unknown | - | - | King, Herb | --NR-- |
'King's Diplomat' | Med-Green | Marginal | Yellow | Unknown | - | - | King, Herb | --NR-- |
'King's Duchess of Suffolk' | Med-Green | Marginal | Yellow | Unknown | - | - | King, Herb | --NR-- |
'King's Earl of Warwick' | Blue/Green | Streaked | Yellow | Unknown | - | - | King, Herb | --NR-- |
'King's Elegance' | Yellow | Streaked | Green | Unknown | - | - | King, Herb | --NR-- |
'King's Emerald Isle' | Light-Green | - | - | Unknown | - | - | King, Herb | --NR-- |
'King's Empire' | Dark-Green | Streaked | Yellow | Unknown | - | - | King, Herb | --NR-- |
'King's Enchantment' | Med-Green | Streaked | Yellow | Unknown | - | - | King, Herb | --NR-- |
'King's Endeavour' | Med-Green | Marginal | Yellow | Unknown | - | - | King, Herb | --NR-- |
'King's Exuberance' | Light-Green | Marginal | Yellow | Unknown | - | - | King, Herb | --NR-- |
'King's Faerie Queen' | Med-Green | Streaked | Yellow | Unknown | - | - | King, Herb | --NR-- |
'King's Fond Memories' | Med-Green | Marginal | Yellow | Unknown | - | - | King, Herb | --NR-- |
'King's Golden Goddess' | Yellow | - | - | Unknown | - | - | King, Herb | --NR-- |
'King's Golden Knight' | Light-Green | - | - | Unknown | - | - | King, Herb | --NR-- |
'King's Green Charmer' | Dark-Green | - | - | Unknown | - | - | King, Herb | --NR-- |
'King's Hardy Knight' | Med-Green | Marginal | Yellow | Unknown | - | - | King, Herb | --NR-- |
'King's Highcliff Castle' | Blue/Green | - | - | Unknown | - | - | King, Herb | --NR-- |
'King's Infatuation' | Light-Green | - | - | Unknown | - | - | King, Herb | --NR-- |
'King's Integrity' | Med-Green | - | - | Unknown | - | - | King, Herb | --NR-- |
'King's Keepsake' | Med-Green | - | - | Unknown | - | - | King, Herb | --NR-- |
'King's Lady Anne' | Med-Green | Marginal | Yellow | Unknown | - | - | King, Herb | --NR-- |
'King's Lady Bernadette' | Med-Green | Marginal | Yellow | Unknown | - | - | King, Herb | --NR-- |
'King's Lady Elizabeth' | Med-Green | - | - | Unknown | - | - | King, Herb | --NR-- |
'King's Lady Fay' | Med-Green | - | - | Unknown | - | - | King, Herb | --NR-- |
'King's Lady Gwen' | Med-Green | Streaked | Yellow | Unknown | - | - | King, Herb | --NR-- |
'King's Lady Helena' | Med-Green | Streaked | Yellow | Unknown | - | - | King, Herb | --NR-- |
'King's Lady Hyacinth' | Med-Green | Marginal | Yellow | Unknown | - | - | King, Herb | --NR-- |
'King's Lady in Waiting' | Light-Green | - | - | Unknown | - | - | King, Herb | --NR-- |
'King's Lady Laurita' | Dark-Green | Medial | Yellow | Unknown | - | - | King, Herb | --NR-- |
'King's Lady Prudence' | Med-Green | Streaked | Yellow | Unknown | - | - | King, Herb | --NR-- |
'King's Leeds Castle' | Dark-Green | - | - | Unknown | - | - | King, Herb | --NR-- |
'King's Lord Lionel' | Med-Green | Streaked | Yellow | Unknown | - | - | King, Herb | --NR-- |
'King's Lord Montgomery' | Med-Green | Streaked | Yellow | Unknown | - | - | King, Herb | --NR-- |
'King's Memento' | Med-Green | Marginal | Yellow | Unknown | - | - | King, Herb | --NR-- |
'King's Mentor' | Dark-Green | Marginal | Yellow | Unknown | - | - | King, Herb | --NR-- |
'King's Messenger' | Blue/Green | Marginal | Yellow | Unknown | - | - | King, Herb | --NR-- |
'King's Minstrel' | Light-Green | Streaked | Yellow | Unknown | - | - | King, Herb | --NR-- |
'King's Paladin' | Dark-Green | - | - | Unknown | - | - | King, Herb | --NR-- |
'King's Paramour' | Dark-Green | Streaked | Yellow | Unknown | - | - | King, Herb | --NR-- |
'King's Penance' | Light-Green | - | - | Unknown | - | - | King, Herb | --NR-- |
'King's Polar Moon' | Yellow | Marginal | Green | Unknown | - | - | King, Herb | --NR-- |
'King's Pride and Joy' | Med-Green | Marginal | Yellow | Unknown | - | - | King, Herb | --NR-- |
'King's Princess Iseult' | Med-Green | Marginal | Yellow | Unknown | - | - | King, Herb | --NR-- |
'King's Princess Ming' | Med-Green | Marginal | Yellow | Unknown | - | - | King, Herb | --NR-- |
'King's Ransom' | Light-Green | - | - | Hybrid | Near-White | July into August | Dean, Don | .2006 |
'King's Redemption' | Blue/Green | - | - | Unknown | - | - | King, Herb | --NR-- |
'King's Regency' | Yellow | - | - | Unknown | - | - | King, Herb | --NR-- |
'King's Ruffian' | Dark-Green | - | - | Unknown | - | - | King, Herb | --NR-- |
'King's Sir Lucan' | Med-Green | Marginal | Yellow | Unknown | - | - | King, Herb | --NR-- |
'King's Sir Michael' | Med-Green | - | - | Unknown | - | - | King, Herb | --NR-- |
'King's Sir Mordred' | Med-Green | Streaked | Yellow | Unknown | - | - | King, Herb | --NR-- |
'King's Sir Percival' | Blue/Green | - | - | Unknown | Near-White | - | King, Herb & Gladys | --NR-- |
'King's Sir Tristan' | Med-Green | Marginal | Yellow | Unknown | - | - | King, Herb | --NR-- |
'King's Sorcerer' | Dark-Green | Marginal | Yellow | Unknown | - | - | King, Herb | --NR-- |
'King's Sorrow' | Med-Green | Marginal | Yellow | Unknown | - | - | King, Herb | --NR-- |
'King's Squire' | Med-Green | Marginal | Yellow | Unknown | - | - | King, Herb | --NR-- |
'King's Summer Surprise' | Dark-Green | Marginal | Yellow | Unknown | - | - | King, Herb | --NR-- |
'King's Trusted Friend' | Med-Green | Marginal | Yellow | Unknown | - | - | King, Herb | --NR-- |
'King's Veiled Beauty' | Light-Green | Streaked | Yellow | Nat-Sport | - | - | King, Herb & Gladys | --NR-- |
'Kingwood Center' | Blue/Green | Medial | Yellow | Nat-Sport | Pure-White | July | Applegate, Charles | .1993 .2018 |
'Kinkanshoku' | Med-Green | Marginal | Yellow | Nat-Sport | Pale-Lavender | July | Unknown | --NR-- |
'Kinky Boots' | Blue/Green | Marginal | White | Nat-Sport | Pale-Lavender | July into August | Dean, Don | .2014 |
'Kinokawa Unazuki' | Med-Green | Streaked | Speckles | Nat-Sport | Med-Lavender | August to September | Unknown | --NR-- |
'Kinu Akari' | Dark-Green | - | - | Nat-Sport | Light-Purple | August to September | Unknown | --NR-- |
'Kinuito Gumo' | Dark-Green | Marginal | White | Nat-Sport | Light-Purple | August to September | Unknown | --NR-- |
'Kinu-no-yuki' | Med-Green | Medial | White | Hybrid | Light-Purple | August to September | Unknown | --NR-- |
'Kinusouri' | Med-Green | - | - | Hybrid | - | - | Unknown | --NR-- |
'Kiowa' | Blue/Green | Medial | Yellow | Nat-Sport | Near-White | June into July | Goodwin, Randy | .2013 |
'Kirk's Gold' | Yellow | - | - | TC Sport | Pale-Lavender | July into August | Zilis, Mark | .2009 |
'Kishimafu Sudare Giboshi' | Med-Green | Streaked | Yellow | Unknown | | | Unknown | --NR-- |
'Kishimafu Urajiro Saigoku Iwa Giboshi' | Med-Green | Streaked | Yellow | Unknown | | | Unknown | --NR-- |
'Kishiro-chirishimafu' | Dark-Green | - | - | Nat-Sport | Light-Purple | June into July | Unknown | --NR-- |
'Kishiro-nakafu Hyūga' | Dark-Green | - | - | Nat-Sport | Near-White | August to September | Unknown | --NR-- |
'Kishiro-nakafu Unazuki' | Med-Green | - | - | Nat-Sport | Med-Lavender | August to September | Unknown | --NR-- |
'Kishiro-shimafu Unazuki' | Med-Green | - | - | Nat-Sport | Med-Lavender | August to September | Unknown | --NR-- |
'Kiss an Angel Good Morning' | Dark-Green | Marginal | Yellow | Hybrid | Med-Lavender | October | Kwick, Charles | .2018 |
'Kiss and Surrender' | Light-Green | - | - | Hybrid | Pale-Lavender | August to September | Kwick, Charles | .2018 |
'Kiss Me Farewell' | Yellow | - | - | Hybrid | - | June into July | Kwick, Charles | .2016 |
'Kissing Cousin' | Blue/Green | Marginal | White | Nat-Sport | Pale-Lavender | July into August | Elslager, Ed | .1998 |
'Kisuji' | Light-Green | Streaked | Yellow | Nat-Sport | Light-Purple | August | Unknown | --NR-- |
'Kite' | Blue/Green | - | - | Unknown | - | - | Smith, Eric & BHHS | .1988 |
'Kitty Hawk' | Yellow | - | - | Hybrid | Pale-Lavender | August | Herold, Roy | .2000 |
'Kiwi Acid Yellow' | Yellow | - | - | Unknown | - | - | Sligh, Barry | --NR-- |
'Kiwi Blue Flash' | Blue/Green | Streaked | Speckles | Nat-Sport | Pale-Lavender | July | Sligh, Barry | .2000 |
'Kiwi Canoe' | Blue/Green | - | - | Hybrid | Pure-White | June into July | Sligh, Barry | .1999 |
'Kiwi Classic' | Blue/Green | Medial | Yellow | Nat-Sport | Pale-Lavender | July into August | Sligh, Barry | --NR-- |
'Kiwi Cream Edge' | Yellow | Marginal | White | Unknown | - | July into August | Jury, Felix & Walek, Kevin | .2009 |
'Kiwi Crinkles' | Med-Green | - | - | Hybrid | Light-Purple | August | Sligh, Barry | --NR-- |
'Kiwi Emerald' | Dark-Green | - | - | Hybrid | Pale-Lavender | July into August | Sligh, Barry | .1999 |
'Kiwi Emerald Isle' | Dark-Green | - | - | Hybrid | Med-Lavender | - | Collier, Gordon | --NR-- |
'Kiwi Fresh Salad' | Yellow | - | - | Hybrid | - | - | Sligh, Barry | --NR-- |
'Kiwi Full Monty' | Blue/Green | Medial | White | Nat-Sport | Pale-Lavender | July | Sligh, Barry | .2000 |
'Kiwi Gold Rush' | Yellow | - | - | Unknown | Pale-Lavender | July | Sligh, Barry | .1999 |
'Kiwi Highlights' | Med-Green | Streaked | Speckles | Hybrid | - | - | Sligh, Barry | --NR-- |
'Kiwi Minnie Gold' | Yellow | - | - | Unknown | Light-Purple | July | Sligh, Barry | .1999 |
'Kiwi Pacific Blue' | Blue/Green | - | - | Hybrid | Pale-Lavender | June | Sligh, Barry | .1999 |
'Kiwi Pete' | Blue/Green | Medial | Yellow | Unknown | - | - | Sligh, Barry | --NR-- |
'Kiwi Splash' | Med-Green | Marginal | White | Nat-Sport | Pale-Lavender | July into August | Sligh, Barry | .1999 |
'Klingon' | Dark-Green | - | - | Nat-Sport | Pale-Lavender | June into July | Zilis, Mark & Schwarz, Jim | --NR-- |
'Klopping Variegated' | Blue/Green | Marginal | White | Unknown | Pale-Lavender | July | Klopping, Minnie & Ruh, Peter | .1988 |
'KL's Choice' | Blue/Green | Marginal | White | Hybrid | Near-White | July into August | Sully, Marcia | .2014 |
'Knehei Roji' | Yellow | - | - | Unknown | - | - | Unknown | --NR-- |
'Knight's Journey' | Med-Green | Marginal | White | Nat-Sport | Med-Lavender | July into August | Malloy, Alex | .2002 |
'Knit Pickin' | Dark-Green | - | - | Hybrid | Med-Lavender | July | Zolock, Steve & Sarah | .2010 |
'Knockout' | Med-Green | Marginal | Creamy White | Hybrid | Pale-Lavender | June into July | Aden, Paul | .1986 |
'Ko Seto' | Med-Green | - | - | Unknown | Med-Lavender | August | Watanabe, Kenji | .2002 |
'Kofuki Iwa Giboshi' | Light-Green | - | - | Unknown | Light-Purple | September | Maekawa, Dr Fumio | --NR-- |
'Kogane Fuji' | Med-Green | Streaked | Yellow | Nat-Sport | Pale-Lavender | July | Unknown | --NR-- |
'Koki' | - | Streaked | - | Unknown | - | - | Unknown | --NR-- |
'Kokuryu' | Med-Green | - | - | Unknown | Near-White | October | Nakayama, Toyozo, Kurasawa, Tsuneo & Ruh, Peter | .2000 |
'Konkubine' | Yellow | - | - | Unknown | Pale-Lavender | July | Klose, Heinz & Ruh, Peter & Jean | .2005 |
'Korean Snow' | Med-Green | Streaked | Creamy White | Hybrid | Light-Purple | August | Niche Gardens & Solberg, Robert | .1999 |
'Koriyama' | Med-Green | Marginal | White | Nat-Sport | Light-Purple | August | Unknown | --NR-- |
'Kosugidani' | Med-Green | - | - | Unknown | Pale-Lavender | August | Unknown | --NR-- |
'Koufuu' | Dark-Green | Streaked | White | Nat-Sport | Light-Purple | August to September | Unknown | --NR-- |
'Koyurugi' | Med-Green | Streaked | Speckles | Hybrid | - | - | Onoda | --NR-- |
'Kozu Nishiki' | Med-Green | - | - | Nat-Sport | Med-Lavender | September | Unknown | --NR-- |
'Krinkled Cup' | Blue/Green | - | - | Unknown | - | - | Wade, Van | --NR-- |
'Kronos' | Med-Green | Marginal | Yellow | Unknown | - | - | Dalton, Jim & Meg | --NR-- |
'Krossa Variegated' | Blue/Green | Streaked | Speckles | Unknown | Med-Lavender | July | Krossa, Gus | --NR-- |
'Krugerrand' | Yellow | - | - | Hybrid | - | - | Balitewicz, Bob | --NR-- |
'Kryptonite' | Dark-Green | - | - | Nat-Sport | Pale-Lavender | July into August | Tramposch, Kurt & Walek, Kevin | .2009 |
'Kunpu' | Med-Green | - | - | Unknown | - | - | Unknown | --NR-- |
'Kwickie' | Yellow | - | - | Hybrid | Med-Lavender | June into July | Kwick, Charles | .2017 |
'Kyoto' | Med-Green | - | - | Hybrid | Med-Lavender | August to October | Sugita, Hajime & Ruh, Peter | .2001 |
|