| Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
| 'Impressive' | Small | Med-Green | - | - | Unknown | - | - | Goodwin, Randy | --NR-- |
| 'Inca Sun' | Large | Yellow | - | - | Unknown | Near-White | June into July | Goodwin, Randy | .2000 |
| 'Indian Summer' (Goodwin) | Small | Yellow | Marginal | White | Nat-Sport | Med-Lavender | July into August | Goodwin, Randy | .2006 |
| 'Indiana Knight' | Medium | Med-Green | Marginal | Chartreuse | Nat-Sport | Pale-Lavender | July | Goodwin, Randy | .1990 |
| 'Indy Fan Favorite' | Small | Light-Green | - | - | Unknown | Light-Purple | August | Goodwin, Randy | .2014 |
| 'Indy Finish Line' | Medium | Med-Green | Medial | Creamy White | Unknown | Pale-Lavender | July into August | Whitmore, Bob & Goodwin, Randy | .2005 |
| 'Indy Parade Lap' | Small | Dark-Green | Marginal | Yellow | Hybrid | Light-Purple | August | Goodwin, Randy | .2005 |
| 'Irish Pastures' | Medium | Light-Green | Marginal | White | Nat-Sport | Pure-White | July into August | Goodwin, Randy | .2006 |
| 'Irish Pearl' | Small | Med-Green | - | - | Unknown | Pale-Lavender | August to September | Goodwin, Randy | .2017 |
| 'Ivory Snow' | Small | Dark-Green | Medial | White | Unknown | Med-Lavender | July into August | Goodwin, Randy | .2019 |
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