| No. | Cultivar Name | Source | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Registered |
|
1
| 'Yang' | Wilkins, Dr Jim & Wilkins, Sandy | Small | Med-Green | Streaked | Creamy White | Sport | Pale-Lavender | August | .2002 |
|
2
| 'Yashie' | Benedict, Dr Ralph (Herb) | Medium | Med-Green | - | - | Unknown | - | - | --NR-- |
|
3
| 'Yea' | Benedict, Dr Ralph (Herb) | Medium | Light-Green | - | - | Sport | Pure-White | August | --NR-- |
|
4
| 'Yellow Bird' | Benedict, Dr Ralph (Herb) | Medium | Yellow | - | - | Hybrid | Pale-Lavender | August | .1991 |
|
5
| 'Yellow Blade' | Benedict, Dr Ralph (Herb) & Walek, Kevin | Medium | Yellow | - | - | Sport | - | July into August | .2009 |
|
6
| 'Yellow Dream' | Livingston, Ron | Medium | Light-Green | - | - | Unknown | - | July into August | --NR-- |
|
7
| 'Yellow Heron' | Owens, Clarence | Medium | Yellow | - | - | Unknown | - | - | --NR-- |
|
8
| 'Yellow High' | Owens, Clarence | Large | Yellow | - | - | Duplicate | - | - | .1990 |
|
9
| 'Yellow Highness' | Owens, Clarence | Large | Yellow | - | - | Hybrid | - | - | .1990 |
|
10
| 'Yellow Needle' | Livingston, Ron | Miniature | Yellow | - | - | Unknown | - | - | --NR-- |
|
11
| 'Yellow Ruffles' | Livingston, Ron | Large | Yellow | - | - | Unknown | - | - | --NR-- |
|
12
| 'Yellow Smiles' | Livingston, Ron | Small | Yellow | - | - | Unknown | Med-Lavender | - | --NR-- |
|
13
| 'Yellow Swoosh' | Livingston, Ron | Large | Yellow | - | - | Unknown | - | - | --NR-- |
|
14
| 'Yellowtail' | Elslager, Ed | Small | Light-Green | - | - | Hybrid | Pale-Lavender | July | .2005 |
|
15
| 'Yikes! More Stripes' | Elslager, Ed | Giant | Dark-Green | Streaked | Yellow | Hybrid | Pale-Lavender | July into August | .2004 |
|
16
| 'Yin' | Wilkins, Dr Jim & Wilkins, Sandy | Medium | Med-Green | Marginal | Creamy White | Sport | Pale-Lavender | August | .2002 |
|
17
| 'Yoshie' | Benedict, Dr Ralph (Herb) & Kuenster, Rod | Large | Med-Green | - | - | Unknown | Light-Purple | August | .2010 |
|
18
| 'You and Me' | Owens, Clarence | Large | Med-Green | Medial | White | Hybrid | Near-White | June into July | .2021 |
|
19
| 'You Light Up My Life' | Elslager, Ed | Large | Med-Green | Marginal | White | Hybrid | Pale-Lavender | July | .2003 |
|
20
| 'Yuma' (Livingston) | Livingston, Ron | Medium | Light-Green | | - | Unknown | Light-Purple | - | --NR-- |
|