| No. | Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
|
1
| 'Abba Diana Reeck' | Medium | Dark-Green | Medial | White | Unknown | - | - | Aden, Paul & Zilis, Mark & The American Hosta Society | .2010 |
|
2
| 'Abba Double Header' | Medium | Med-Green | Medial | White | Unknown | - | June into July | Aden, Paul & Zilis, Mark | .2010 |
|
3
| 'Abba Flower Mound' | Small | Med-Green | Medial | White | Unknown | - | - | Aden, Paul & Zilis, Mark | .2010 |
|
4
| 'Abba Fragrant Backscratcher' | Large | Med-Green | Marginal | White | Unknown | - | - | Aden, Paul & Zilis, Mark | .2010 |
|
5
| 'Abba Irresistible' | Medium | Dark-Green | Medial | Creamy Yellow | Unknown | Light-Purple | July into August | Zilis, Mark & The American Hosta Society & Aden, Paul | .2010 |
|
6
| 'Abba Ready' | Medium | Med-Green | Marginal | White | Sport | Pale-Lavender | July into August | Zilis, Mark & The American Hosta Society & Aden, Paul | .2010 |
|
7
| 'Abba Soul Mate' | Small | Blue/Green | Medial | Blue-Green | Unknown | - | July into August | Aden, Paul & Zilis, Mark | .2010 |
|
8
| 'Abba Windows' | Medium | Light-Green | Streaked | Yellow | Sport | Near-White | July into August | Aden, Paul & Zilis, Mark | .2010 |
|
9
| 'Abraham Lincoln' | Medium | Blue/Green | - | - | Hybrid | Light-Purple | June into July | Beilstein, Doug & Zilis, Mark | .2009 |
|
10
| 'Afternoon Delight' | Large | Blue/Green | Marginal | Creamy White | Sport | Pale-Lavender | June into July | Zilis, Mark | .2003 |
|
11
| 'Aloha' | Medium | Dark-Green | Marginal | Yellow | Sport | Pale-Lavender | August to September | Zilis, Mark & Schwarz, Jim | .2015 |
|
12
| 'Amigo' | Large | Blue/Green | Marginal | Yellow | Sport | Pale-Lavender | July into August | Schwarz, Karen & Zilis, Mark | .2014 |
|
13
| 'Amy Elizabeth' | Medium | Med-Green | Marginal | Greenish White | Sport | Pale-Lavender | July | Zilis, Mark | .2003 |
|
14
| 'Andrew Dennis' | Large | Blue/Green | Marginal | White | Unknown | - | - | Weissenberger, Henry & Zilis, Mark | .2010 |
|
15
| 'Angel of Beauty' | Large | Blue/Green | Marginal | Yellow | TC Sport | Near-White | June into July | Zilis, Mark | .2022 |
|
16
| 'Anthony' | Large | Yellow | Marginal | Blue-Green | TC Sport | Pale-Lavender | July | Zilis, Mark | .2011 |
|
17
| 'Aomori Gold' | Medium | Yellow | - | - | Sport | Deep-Purple | August to October | Muroya, Kimio & Zilis, Mark | .2009 |
|
18
| 'Aomori Gold Star' | Medium | Yellow | Marginal | Green | Sport | Light-Purple | August to September | Muroya, Kimio & Zilis, Mark | .2009 |
|
19
| 'Aomori Select' | Medium | Green | - | - | Sport | Light-Purple | July into August | Zilis, Mark | .2009 |
|
20
| 'Aomori Setting Sun' | Medium | Med-Green | Marginal | Yellow | TC Sport | Deep-Purple | August to October | Muroya, Kimio & Zilis, Mark | .2009 |
|
21
| 'Appalachian Beauty' | Large | Med-Green | Marginal | Yellow | TC Sport | Near-White | June into July | Zilis, Mark | .2003 |
|
22
| 'Appletini' | Small | Yellow | - | - | Hybrid | Light-Purple | August | Zilis, Mark | .2009 |
|
23
| 'Archangel' | Medium | Light-Green | - | - | TC Sport | Pale-Lavender | July | Zilis, Mark | .2003 |
|
24
| 'Azure Frills' | Medium | Blue/Green | - | - | Hybrid | Light-Purple | July into August | Zilis, Mark | .2010 |
|
25
| 'Azuretini' | Small | Med-Green | - | - | Hybrid | - | August to October | Zilis, Mark | .2009 |
|