| No. | Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
|
1
| 'Yankee Blue Lightning' | Medium | Dark-Green | - | - | Unknown | - | - | Balitewicz, Bob | --NR-- |
|
2
| 'Yarden Blue Surfer Boy' | Small | Blue/Green | - | - | Unknown | - | - | White, Brian | --NR-- |
|
3
| 'Yellow Dream' | Medium | Light-Green | - | - | Unknown | - | July into August | Livingston, Ron | --NR-- |
|
4
| 'Yellow Girl' | Medium | Light-Green | | | Unknown | | | Leuckx, Bart | --NR-- |
|
5
| 'Yellow Piecrust' | Medium | Yellow | | | Unknown | | | Ziarek, Ken | --NR-- |
|
6
| 'Yellow Spring' | Medium | Yellow | - | - | Unknown | - | - | Plater-Zyberk, Maria | --NR-- |
|
7
| 'Yellow Swoosh' | Large | Yellow | - | - | Unknown | - | - | Livingston, Ron | --NR-- |
|
8
| 'Yellow Yeti' | Giant | Yellow | - | - | Unknown | - | - | Carlson, Monty & Carlson, Julie | --NR-- |
|
9
| 'Yojimbo' | Large | Med-Green | - | - | Hybrid | Near-White | June into July | Ward, Dr Dick & Ward, Jane | .2003 |
|
10
| 'You Can Call Me Al' | Large | Blue/Green | Marginal | White | Unknown | - | - | Wasitis, Chick | --NR-- |
|