| No. | Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
|
1
| 'Dark Matter' | Medium | Dark-Green | - | - | Hybrid | Pale-Lavender | June into July | Kedl, Phyllis | .2010 |
|
2
| 'Deep Space Nine' | Large | Med-Green | Marginal | Yellow | TC Sport | Pale-Lavender | July into August | Zilis, Mark | .2010 |
|
3
| 'Devon Desire' | Giant | Med-Green | - | - | Unknown | Pale-Lavender | July | Bowden, Roger & Bowden, Ann & Ruh, Peter | .2010 |
|
4
| 'Devon Hills' | Large | Dark-Green | - | - | Hybrid | Near-White | July | Bowden, Roger & Bowden, Ann & Ruh, Peter & Ruh, Jean | .2010 |
|
5
| 'Diamond Necklace' | Small | Med-Green | Medial | White | Sport | Pure-White | July into August | Zilis, Mark | .2010 |
|
6
| 'Don't Taz Me Bro' | Medium | Med-Green | Streaked | White | Hybrid | - | August to September | Freeman, Franc & Freeman, Sally | .2010 |
|
7
| 'Dorothy's Brass Band' | Medium | Yellow-Gold | - | - | Unknown | - | June into July | Benedict, Dr Ralph (Herb) & Walek, Kevin & The American Hosta Society | .2010 |
|
8
| 'Dorset Blueblood' | Small | Blue/Green | - | - | Sport | Pale-Lavender | July | Zilis, Mark | .2010 |
|
9
| 'Dorset Clown' | Small | Blue/Green | Streaked | Creamy White | Hybrid | Pale-Lavender | June into July | Benedict, Dr Ralph (Herb) & Kuenster, Rod | .2010 |
|
10
| 'Downpour' | Giant | Blue/Green | Marginal | Yellow | Sport | Near-White | June into July | Tomashek, Cindy | .2010 |
|