| No. | Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
|
1
| 'Yankee Doodle' (Goodwin) | Medium | Med-Green | Marginal | Yellow | Sport | Pale-Lavender | June to July | Goodwin, Randy | .2018 |
|
2
| 'Yellow Bonkers' | Medium | Yellow | | | Unknown | Near-White | July to August | Ziarek, Ken & Purvis, Owen | .2022 |
|
3
| 'Yellow Comet' | Medium | Yellow | | | Hybrid | Light-Purple | June to July | Graves, Butch | .2008 |
|
4
| 'Yellow Dog' | Large | Yellow | | | Unknown | Pale-Lavender | June to July | Hicks, Gerry | .2017 |
|
5
| 'Yikes Stripes' | Small | Blue/Green | | | Unknown | Unknown | July to August | Megos, Stan | .2007 |
|
6
| 'Yikes! More Stripes' | Giant | Dark-Green | Streaked | Yellow | Hybrid | Pale-Lavender | July to August | Elslager, Ed | .2004 |
|
7
| 'Yorick' | Large | Dark-Green | Marginal | Green | Unknown | Unknown | July to August | Squires, Keith & Ruh, Peter & Ruh, Jean | .2005 |
|