| Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
| 'Barbara' | Medium | Blue/Green | - | - | Unknown | Light-Purple | July | Stone, David & Ruh, Peter | .1987 |
| 'Beaulah' | Small | Med-Green | Marginal | Yellow | Unknown | Light-Purple | August | Stone, David & Ruh, Peter | .1988 |
| 'Blue Boy' | Large | Blue/Green | - | - | Hybrid | Pale-Lavender | - | Stone, David & AHS | .1986 |
| 'Blue Rock' | Giant | Blue/Green | - | - | Unknown | Near-White | June into July | Fisher, Eunice V. & Stone, David | .1986 |
| 'Bonnie' | Large | Blue/Green | - | - | Unknown | Near-White | June into July | Stone, David & Ruh, Peter | .1987 |
| 'Brooke' | Large | Med-Green | - | - | Unknown | Pale-Lavender | July | Stone, David & Ruh, Peter | .1987 |
| 'Bruce' | Small | Med-Green | - | - | Unknown | Med-Lavender | June into July | Stone, David & Ruh, Peter | .2002 |
| 'Carrie Ann' | Small | Blue/Green | Marginal | White | Unknown | Pure-White | August | Stone, David & Ruh, Peter | .1988 |
| 'Dustin' | Medium | Med-Green | Marginal | White | Unknown | Pale-Lavender | July into August | Stone, David & Ruh, Peter | .1988 |
| 'Eireann' | Large | Blue/Green | - | - | Unknown | Pale-Lavender | July into August | Stone, David & Ruh, Peter | .1991 |
| 'Ellen' | Small | Med-Green | - | - | Hybrid | Light-Purple | July | Stone, David & Ruh, Peter | .1987 |
| 'Emerald Gem' | Small | Yellow | - | - | Unknown | Light-Purple | July | Stone, David & Ruh, Peter | .1991 |
| 'Excalibur' | Small | Blue/Green | Marginal | White | Unknown | Light-Purple | August | Stone, David & AHS | .1986 |
| 'Hazel' | Small | Yellow | - | - | Unknown | Light-Purple | July | Stone, David & Ruh, Peter | .1987 |
| 'Jo Jo' | Small | Med-Green | Marginal | White | Unknown | Light-Purple | August | Stone, David & Ruh, Peter | .1987 |
| 'Leprechaun' | Miniature | Med-Green | - | - | Unknown | Light-Purple | July | Stone, David & Ruh, Peter | .1991 |
| 'Little Ann' | Miniature | Med-Green | Marginal | White | Unknown | Light-Purple | August | Stone, David & Ruh, Peter | .1988 |
| 'Margaret' | Miniature | Med-Green | - | - | Unknown | Light-Purple | August | Stone, David & Ruh, Peter | .1987 |
| 'Mary Jo' | Small | Blue/Green | - | - | Unknown | Pale-Lavender | July | Stone, David & Ruh, Peter | .1987 |
| 'Oakview' | Small | Blue/Green | - | - | Unknown | Med-Lavender | June into July | Stone, David & Ruh, Peter | .1987 |
| 'Pauline' | Small | Med-Green | - | - | Unknown | Med-Lavender | August to October | Stone, David & Ruh, Peter | .1987 |
| 'Pearl Lake' | Medium | Blue/Green | - | - | Unknown | Pale-Lavender | July | Stone, David & Payne, Frank | .1982 |
| 'Peking' | Medium | Yellow | - | - | Unknown | Pale-Lavender | July | Stone, David & Ruh, Peter & Jean | .2005 |
| 'Piedmont Gold' | Large | Yellow | - | - | Unknown | Near-White | June into July | Stone, David & Payne, Henry | .1982 |
| 'Piedmont's Gold Miniature' | Miniature | Yellow | - | - | Unknown | Light-Purple | July | Stone, David & Payne, Henry | --NR-- |
| 'Spring Gold' | - | - | - | - | Unknown | - | - | Stone, David | --NR-- |
| 'Stones' | Large | Dark-Green | - | - | Nat-Sport | Pale-Lavender | June into July | Stone, David | --NR-- |
| 'Stones Golden Sunburst' | - | Yellow | - | - | Unknown | - | - | Stone, David | --NR-- |
| 'Stone's Valentine' | Medium | Yellow | - | - | Unknown | Med-Lavender | July | Stone, David & Ruh, Peter | .1989 |
| 'Stone's Yellow Leaf' | Medium | Light-Green | - | - | Unknown | - | - | Stone, David & Ruh, Peter & Jean | .2004 |
| 'Sunnybrook' | Medium | Blue/Green | Marginal | Yellow | Duplicate | Near-White | June | Stone, David & Ruh, Peter & Banyai, Pauline | .1987 |
| 'Wolcott' | Giant | Dark-Green | Streaked | Speckles | Hybrid | Pale-Lavender | June into July | Stone, David | .1982 |
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