| Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
| 'Dahlonega' | Large | Yellow | | - | Hybrid | Pale-Lavender | June into July | McDonell, Harold | .2014 |
| 'Dancing Stars' | Medium | Blue/Green | Medial | White | TC Sport | Pale-Lavender | June into July | Zwagerman, Mary & Walters Gardens | .2009 |
| 'Dani Adams' | Large | Med-Green | Streaked | Yellow | Unknown | Pale-Lavender | - | Hackbarth, Robert | .2015 |
| 'Daredevil' | Large | Blue/Green | Marginal | White | TC Sport | Pale-Lavender | June into July | Zilis, Mark | .2011 |
| 'Dark Horse' | Giant | Blue/Green | | - | Hybrid | Med-Lavender | June into July | Fox, Bob & Fox Hosta Farm | .2018 |
| 'Dark Knight' | Large | Dark-Green | | - | Hybrid | - | July into August | Kwick, Charles | .2016 |
| 'Dave' | Medium | Yellow | Marginal | Green | Nat-Sport | Pale-Lavender | June into July | Kuk, Bob | .2011 |
| 'Deborah' | Large | Dark-Green | Marginal | White | Unknown | - | July into August | Schwarz, Jim | .2015 |
| 'Delaware Blue Hen' | Giant | Blue/Green | | - | Unknown | - | June into July | Kruer, George | .2009 |
| 'Delta Dawn' | Large | Yellow | Marginal | White | Hybrid | Near-White | June | Vaughn, Kevin & Walek, Kevin | .2009 |
| 'Delta Force' | Medium | Med-Green | Streaked | Speckles | Nat-Sport | Near-White | June into July | Vaughn, Kevin | --NR-- |
| 'Demetriou's Gold' | Medium | Light-Green | | - | Unknown | Med-Lavender | June into July | Demetriou, Brenda & John | .2001 |
| 'Denim Jacket' | Small | Blue/Green | | - | Hybrid | - | July into August | Mullin, Joy & Zilis, Mark | .2009 |
| 'Diablo' | Medium | Blue/Green | | - | Unknown | Near-White | June into July | Dalton, Jim & Meg | .2012 |
| 'Diamonds are Forever' | Small | Med-Green | Marginal | White | TC Sport | Deep-Purple | July | Sal, Eric & Walters Gardens | .2012 |
| 'Diane Gray Dalton' | Medium | Dark-Green | Streaked | White | Unknown | Med-Lavender | July | Seaver, Mildred & Walek, Kevin | .2009 |
| 'Dino' | Large | Med-Green | Marginal | Yellow | Nat-Sport | Near-White | June | Van Eechaute, Danny | .2009 |
| 'Dixie's Memory' | - | Dark-Green | Marginal | Yellow | Hybrid | Pale-Lavender | June | Myers, Gary | .2018 |
| 'Donna' | Medium | Med-Green | | - | Hybrid | Pale-Lavender | July into August | Graves, Butch | .2011 |
| 'Don's Gator Hide' | Large | Med-Green | | - | Unknown | Med-Lavender | July into August | Rawson, Don | .2016 |
| 'Don't Look Back' | Small | Med-Green | Streaked | Yellow | Hybrid | Near-White | June into July | Ward, Dr Dick & Jane | .2015 |
| 'Don't Touch My Junk' | Small | Med-Green | Streaked | Yellow | Unknown | - | June into July | Freeman, Franc | .2011 |
| 'Dorothy Rules' | Large | Blue/Green | Streaked | Yellow | Unknown | - | June into July | Elslager, Ed | --NR-- |
| 'Dragon Slayer' | Giant | Blue/Green | | - | Hybrid | Pale-Lavender | June into July | Dalton, Jim & Meg | .2012 |
| 'Drama Queen' | Large | Med-Green | Marginal | White | Unknown | - | June into July | Wasitis, Chick | .2011 |
| 'Dream Catcher' | Large | Dark-Green | Marginal | White | Unknown | - | June into July | Asch, Stuart | .2009 |
| 'Dreamliner' | Giant | Dark-Green | Streaked | White | Nat-Sport | Pale-Lavender | June into July | Van Eechaute, Danny | --NR-- |
| 'Drew's Standard' | Small | Dark-Green | Marginal | White | Unknown | - | July | Goodwin, Randy | .2009 |
| 'Dubious Behavior' | Small | Light-Green | Marginal | Dark Green | Nat-Sport | None | None | McHugh, Ed | .2012 |
| 'Dubuque Blues' | Large | Blue/Green | | - | TC Sport | Near-White | June into July | Schwarz, Jim | --NR-- |
| 'Dubuque University Spartans' | Medium | Blue/Green | | - | Unknown | - | June into July | Freeman, Franc | .2011 |
| 'Dune Boy' | Large | Light-Green | | - | Hybrid | - | - | Petryszyn, Olga | .2009 |
| 'Dusty Moon' | Medium | Blue/Green | | - | Nat-Sport | Near-White | June into July | McHugh, Ed | .2012 |
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