| Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
| 'Champ' | Giant | Med-Green | - | - | Hybrid | - | June into July | Kwick, Charles | .2016 |
| 'Champion' | Large | Dark-Green | - | - | Hybrid | Near-White | June into July | Simpers, Lucille & Soules, Marjorie | .1985 |
| 'Chariots of Fire' | Medium | Light-Green | Marginal | Yellow | Hybrid | Light-Purple | August to October | Dishon, Jim | .2004 |
| 'Cheesehead' | Large | Light-Green | - | - | Unknown | - | - | Zilis, Mark | --NR-- |
| 'Coach Beets Dotson' | Small | Med-Green | Streaked | Yellow | Unknown | - | July into August | Freeman, Franc | .2011 |
| 'Coach Jim Brainerd' | Small | Light-Green | Streaked | White | Unknown | - | July into August | Freeman, Franc & Freeman, Sally | .2011 |
| 'Coach Jim Fox' | Medium | Dark-Green | Streaked | White | Hybrid | - | July into August | Freeman, Franc | .2009 |
| 'Coach Millboy Miller' | Medium | Dark-Green | - | - | Unknown | - | July into August | Schwarz, Jim | .2015 |
| 'Coach Paul Castro' | Medium | Med-Green | Streaked | Yellow | Hybrid | - | August to September | Freeman, Franc | .2010 |
| 'Coach Terry Paustian' | Small | Med-Green | Streaked | Yellow | Hybrid | - | August to September | Freeman, Franc | .2010 |
| 'Cricket' | Miniature | Med-Green | - | - | Sport | Pale-Lavender | June into July | Ward, Dr Dick & Ward, Jane | .2010 |
| 'Curve Ball' | Large | Yellow | - | - | Hybrid | Near-White | June into July | Ward, Dr Dick & Ward, Jane | .2009 |
| 'Cyclone Wrestling' | Medium | Dark-Green | - | - | Unknown | - | July into August | Freeman, Franc | .2011 |
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