| No. | Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
|
1
| 'Kasseler Blue' | Medium | Blue/Green | - | - | Unknown | - | - | Klose, Heinz & Ruh, Peter & Ruh, Jean | .2008 |
|
2
| 'Kempen Blue Spider' | Large | Blue/Green | | | Hybrid | | | Butaye, Patrick | --NR-- |
|
3
| 'Kempen Magenta Blue' | Large | Blue/Green | - | - | Hybrid | - | - | Butaye, Patrick | --NR-- |
|
4
| 'Kenn's Little Blue Lightning' | - | Blue/Green | - | - | Unknown | - | - | Unknown | --NR-- |
|
5
| 'Kenny Love Blue' | Large | Blue/Green | - | - | Unknown | - | June into July | Wade, Van & Walek, Kevin & The American Hosta Society | .2009 |
|
6
| 'Kind of Blue' | Large | Blue/Green | - | - | Unknown | - | July | Ward, Dr Dick & Ward, Jane | .1999 |
|
7
| 'King's Majestic Blue' | Large | Blue/Green | - | - | Unknown | - | - | King, Herb | --NR-- |
|
8
| 'Kirkside Blue' | Large | Blue/Green | - | - | Hybrid | Pure-White | July | Hanna, Clarence | .2018 |
|
9
| 'Kiwi Biddy Blue' | Small | Blue/Green | - | - | Hybrid | - | - | Sligh, Barry | --NR-- |
|
10
| 'Kiwi Blue Baby' | Small | Blue/Green | - | - | Hybrid | Pale-Lavender | July | Sligh, Barry | .1999 |
|
11
| 'Kiwi Blue Canoe' | Small | Blue/Green | - | - | Unknown | - | - | Sligh, Barry | --NR-- |
|
12
| 'Kiwi Blue Chip' | - | - | - | - | Unknown | - | - | Sligh, Barry | --NR-- |
|
13
| 'Kiwi Blue Flash' | Medium | Blue/Green | Streaked | Speckles | Sport | Pale-Lavender | July | Sligh, Barry | .2000 |
|
14
| 'Kiwi Blue Heron' | Large | Blue/Green | - | - | TC Sport | Near-White | June into July | Sligh, Barry | --NR-- |
|
15
| 'Kiwi Blue Magic' | Large | Blue/Green | - | - | Unknown | - | - | Sligh, Barry | --NR-- |
|
16
| 'Kiwi Blue Marble' | Large | Blue/Green | Streaked | Yellow | Sport | Pale-Lavender | July into August | Sligh, Barry | --NR-- |
|
17
| 'Kiwi Blue Pacific' | - | - | - | - | Duplicate | - | - | Duplicate Name | --NR-- |
|
18
| 'Kiwi Blue Ruffles' | Large | Blue/Green | - | - | Hybrid | Near-White | June | Sligh, Barry | .1999 |
|
19
| 'Kiwi Blue Sky' | Small | Blue/Green | - | - | Hybrid | Pure-White | June into July | Sligh, Barry | .1999 |
|
20
| 'Kiwi Blue Sunrise' | Large | Blue/Green | Marginal | Yellow | Sport | Near-White | June into July | Sligh, Barry | .1999 |
|
21
| 'Kiwi Blue Waves' | - | Blue/Green | - | - | Unknown | - | - | Sligh, Barry | --NR-- |
|
22
| 'Kiwi Minnie Blue' | Miniature | Blue/Green | - | - | Hybrid | Med-Lavender | July into August | Sligh, Barry | .1999 |
|
23
| 'Kiwi Pacific Blue' | Medium | Blue/Green | - | - | Hybrid | Pale-Lavender | June | Sligh, Barry | .1999 |
|
24
| 'Knockout Mouse' | Miniature | Med-Green | Marginal | Yellow | Sport | - | - | Fransen, Marco & Fransen, Joyce | --NR-- |
|