| No. | Cultivar Name | Source | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Registered |
|
1
| 'Kaitlyn' | Ward, Dr Dick & Ward, Jane | Large | Med-Green | Marginal | Yellow | Hybrid | Pale-Lavender | June | .1998 |
|
2
| 'Kalyn's Joy' | Hurlbert, D. | Giant | Blue/Green | | - | Hybrid | Near-White | June into July | .2019 |
|
3
| 'Karamoosh' | Kuk, Bob | Large | Dark-Green | Marginal | White | Hybrid | Med-Lavender | July into August | .2008 |
|
4
| 'Kaskaskia' | Wade, Van | Large | Med-Green | - | - | Unknown | - | - | --NR-- |
|
5
| 'Kayla Marie' | Boak, Tim | Medium | Med-Green | Streaked | White | Unknown | - | June into July | .2012 |
|
6
| 'Kempton Run' | Ward, Dr Dick & Ward, Jane | Medium | Med-Green | Marginal | White | Hybrid | Pale-Lavender | June into July | .2011 |
|
7
| 'Kenny Love Blue' | Wade, Van & Walek, Kevin | Large | Blue/Green | - | - | Unknown | - | June into July | .2009 |
|
8
| 'Key West Sunset' | Ward, Dr Dick & Ward, Jane | Small | Light-Green | - | - | Unknown | - | July into August | .2013 |
|
9
| 'Kickapoo' | Wade, Van | Medium | Light-Green | - | - | Unknown | - | - | --NR-- |
|
10
| 'Kind of Blue' | Ward, Dr Dick & Ward, Jane | Large | Blue/Green | - | - | Unknown | - | July | .1999 |
|
11
| 'King of Spades' | Beilstein, Doug & Beilstein, Mardy | Medium | Dark-Green | - | - | Hybrid | Med-Lavender | August to October | .2007 |
|
12
| 'King Oil' | Beilstein, Doug & Malloy, Alex | Medium | Yellow | - | - | Hybrid | - | - | --NR-- |
|
13
| 'Kingwood Center' | Applegate, Charles & Kingwood Center | Medium | Blue/Green | Medial | Yellow | Sport | Pure-White | July | .1993 .2018 |
|
14
| 'Kirkside Blue' | Hanna, Clarence | Large | Blue/Green | - | - | Hybrid | Pure-White | July | .2018 |
|
15
| 'Kirkside Golden Parachute' | Hanna, Clarence | Giant | Yellow-Gold | | | Hybrid | Pale-Lavender | July | .2021 |
|
16
| 'Kitty Cat' | Wade, Van | Small | Med-Green | - | - | Sport | Light-Purple | July | --NR-- |
|
17
| 'Knockin' on Heaven's Door' | Vasey, Mike | - | - | - | - | Unknown | - | - | --NR-- |
|
18
| 'Krinkled Cup' | Wade, Van | Medium | Blue/Green | - | - | Unknown | - | - | --NR-- |
|
19
| 'Krossa Regal White Variegation' | Ruh, Peter | Giant | Blue/Green | Streaked | White | TC Sport | Med-Lavender | July into August | --NR-- |
|
20
| 'Krossa Regal Yellow Variegation' | Ruh, Peter | Giant | Blue/Green | Streaked | Yellow | TC Sport | Med-Lavender | July into August | --NR-- |
|
21
| 'Kuk's Forest' | Kuk, Bob | Giant | Dark-Green | Marginal | Yellow | Hybrid | - | - | --NR-- |
|