| No. | Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
|
1
| 'Karen Deborah' | Giant | Blue/Green | - | - | Unknown | Pale-Lavender | June | Simpers, Lucille | --NR-- |
|
2
| 'Karin' | Medium | Med-Green | Marginal | White | Sport | Pale-Lavender | July | Heemskerk, Gerardus | .2005 |
|
3
| 'Kathy's Clown' | Large | Dark-Green | Medial | Yellow | Sport | Med-Lavender | July into August | Ripperger, Kathy | .2008 |
|
4
| 'King James' | Large | Med-Green | - | - | Hybrid | Near-White | June into July | Krossa, Gus & Ruh, Peter | .1992 |
|
5
| 'King Lizard' | Large | Dark-Green | - | - | Hybrid | Light-Purple | July | Rogers, Floyd | .2003 |
|
6
| 'King Midas' | Large | Med-Green | Marginal | Yellow | Sport | Near-White | July | Unknown | --NR-- |
|
7
| 'King Tut' | Large | Yellow | - | - | Hybrid | Near-White | June into July | Harshbarger, Gretchen | .1982 |
|
8
| 'Kingfisher' | Medium | Blue/Green | - | - | Unknown | Pale-Lavender | August to October | Smith, Eric & British Hosta and Hemerocallis Society | .1988 |
|
9
| 'King's Black Knight' | Large | Dark-Green | - | - | Hybrid | Pale-Lavender | July into August | King, Herb & King, Gladys | .2006 |
|
10
| 'Kiwi Black Magic' | Large | Dark-Green | - | - | Hybrid | Light-Purple | July into August | Sligh, Barry | .1999 |
|
11
| 'Kiwi Blue Marble' | Large | Blue/Green | Streaked | Yellow | Sport | Pale-Lavender | July into August | Sligh, Barry | --NR-- |
|
12
| 'Kiwi Blue Ruffles' | Large | Blue/Green | - | - | Hybrid | Near-White | June | Sligh, Barry | .1999 |
|
13
| 'Kiwi Gold Star' | Small | Yellow | - | - | Sport | Pale-Lavender | August | Sligh, Barry | .1999 |
|
14
| 'Kiwi Hippo' | Large | Med-Green | - | - | Hybrid | Light-Purple | July into August | Sligh, Barry | .1999 |
|
15
| 'Kiwi Milky Way' | Large | Blue/Green | - | - | Sport | Near-White | June into July | Sligh, Barry | .2000 |
|
16
| 'Kiwi Pacific Blue' | Medium | Blue/Green | - | - | Hybrid | Pale-Lavender | June | Sligh, Barry | .1999 |
|
17
| 'Kiwi Skyscraper' | Large | Blue/Green | - | - | Hybrid | Pale-Lavender | July into August | Sligh, Barry | --NR-- |
|
18
| 'Kiwi Summer Haze' | Small | Blue/Green | - | - | Unknown | Pale-Lavender | July into August | Sligh, Barry | --NR-- |
|
19
| 'Knockout' | Medium | Med-Green | Marginal | Creamy White | Hybrid | Pale-Lavender | June into July | Aden, Paul | .1986 |
|
20
| 'Kotei' | Large | Blue/Green | Marginal | Yellow | TC Sport | Pale-Lavender | July into August | Unknown | --NR-- |
|
21
| 'Kozu Nishiki' | Medium | Med-Green | - | - | Sport | Med-Lavender | September | Unknown | --NR-- |
|
22
| 'Krinkle Sister' | Large | Blue/Green | Medial | Yellow | Sport | Pale-Lavender | July | Elslager, Ed | .2005 |
|
23
| 'Krinkle Twist' | Large | Blue/Green | Marginal | Yellow | TC Sport | Pale-Lavender | July | Elslager, Ed | .2005 |
|
24
| 'Krinkled Cup' | Medium | Blue/Green | - | - | Unknown | - | - | Wade, Van | --NR-- |
|
25
| 'Krossa Regal' | Giant | Blue/Green | - | - | Hybrid | Pale-Lavender | July into August | Krossa, Gus & Summers, Alex | .1980 |
|
26
| 'Kryptonite' | Medium | Dark-Green | - | - | Sport | Pale-Lavender | July into August | Tramposch, Kurt & Walek, Kevin | .2009 |
|