| No. | Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
|
1
| 'Devon Hills' | Large | Dark-Green | | - | Hybrid | Near-White | July | Bowden, Roger & Bowden, Ann & Ruh, Peter & Ruh, Jean | .2010 |
|
2
| 'Diablo' | Medium | Blue/Green | | - | Unknown | Near-White | June into July | Dalton, Jim & Dalton, Meg | .2012 |
|
3
| 'Dolfina' | Medium | Dark-Green | | | Hybrid | Near-White | July | Kwick, Charles | .2022 |
|
4
| 'Don Clysdale' | Medium | Yellow-Gold | | | Hybrid | Light-Purple | September | Frederking, Ann | .2021 |
|
5
| 'Dragon Slayer' | Giant | Blue/Green | | - | Hybrid | Pale-Lavender | June into July | Dalton, Jim & Dalton, Meg | .2012 |
|