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