| Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
| 'Beatrice' | Small | Med-Green | Streaked | White | Hybrid | Deep-Purple | July | Williams, Frances | --NR-- |
| 'Beatrice Variegated' | Medium | Dark-Green | Streaked | White | Nat-Sport | Light-Purple | July | Williams, Frances | --NR-- |
| 'Betsy King' | Medium | Med-Green | | | Hybrid | Deep-Purple | | Williams, Frances | .1986 |
| 'Carol' | Medium | Blue/Green | Marginal | White | Nat-Sport | Pale-Lavender | July into August | Williams, Frances & AHS | .1986 |
| 'Carol's Sister' | Large | Med-Green | | | Nat-Sport | Pale-Lavender | July into August | Williams, Frances | --NR-- |
| 'Charldon' | | | | | Unknown | | | Williams, Frances | --NR-- |
| 'Dorothy' | Medium | Dark-Green | | | Hybrid | Light-Purple | August | Williams, Frances & AHS | .1986 |
| 'Frances Williams' | Large | Blue/Green | Marginal | Yellow | Nat-Sport | Pale-Lavender | July into August | Williams, Frances & Williams, Connie | .1986 |
| 'Frances Williams Squash Edge' | Large | Blue/Green | Marginal | Yellow | Nat-Sport | Near-White | June into July | Williams, Frances & Williams, Connie | --NR-- |
| 'Golden Circles' | Large | Blue/Green | | | Nat-Sport | Near-White | June into July | Williams, Frances & Ruh, Peter | .1998 |
| 'Green Beatrice' | Medium | Med-Green | | | Hybrid | Light-Purple | August | Williams, Frances & Ruh, Peter | .1987 |
| 'Green Piecrust' | Giant | Med-Green | | | Hybrid | Pale-Lavender | June into July | Williams, Frances & AHS | .1986 |
| 'Green Ripples' | Large | Med-Green | | | Hybrid | Near-White | June into July | Williams, Frances & Williams, Connie | .1986 |
| 'Green Velvet' | | | | | Unknown | | | Williams, Frances | --NR-- |
| 'Kathleen' | Medium | Med-Green | | | Hybrid | Med-Lavender | August | Williams, Frances | .1986 |
| 'Kelsey' | Medium | Med-Green | | | Hybrid | Pale-Lavender | August to October | Williams, Frances & Ruh, Peter | .1996 |
| 'Lavender Lady' | Small | Med-Green | | | Hybrid | Pale-Lavender | August | Williams, Frances & Williams, Connie | .1986 |
| 'Louisa' | Small | Light-Green | Marginal | White | Hybrid | Pure-White | August | Williams, Frances & Williams, Connie | .1986 |
| 'Purple Profusion' | Medium | Med-Green | | | Unknown | Deep-Purple | August to October | Williams, Frances & Williams, Connie | .1986 |
| 'Sentinels' | Medium | Med-Green | | | Hybrid | Light-Purple | August | Williams, Frances & Williams, Connie | .1986 |
| 'Slim Polly' | Small | Light-Green | | | Hybrid | Light-Purple | August | Williams, Frances | .1986 |
| 'Snow Flakes' | Medium | Med-Green | | | Hybrid | Pure-White | August | Williams, Frances & AHS | .1986 |
| 'Stearn's Beauty' | Medium | Blue/Green | | | Unknown | | June into July | Williams, Frances & Ruh, Peter | .1995 |
| 'Sturtevant' | Large | Blue/Green | | | Unknown | | | Sturtevant, Grace & Williams, Frances & Ruh, Peter | .2005 |
| 'Sunlight' | Large | Yellow | | | Nat-Sport | Near-White | July into August | Williams, Frances & Ruh, Peter | .2001 |
| 'Surprise' | Medium | Med-Green | | | Unknown | Pale-Lavender | August to October | Williams, Frances & AHS | .1986 |
| 'Sweet Susan' | Large | Med-Green | | | Hybrid | Pale-Lavender | August | Williams, Frances & Williams, Connie | .1986 |
| 'Tinker Bell' | Small | Med-Green | | | Hybrid | Near-White | August to October | Williams, Frances & Williams, Connie | .1986 |
| 'White Trumpets' | Medium | Light-Green | | | Unknown | Near-White | July into August | Hensen, Karel & Williams, Frances | .1983 |
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