| Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
| 'Facile' | Small | Blue/Green | Medial | White | Unknown | - | - | Aden, Paul | --NR-- |
| 'Fall Bouquet' | Small | Dark-Green | - | - | Hybrid | Light-Purple | August to October | Aden, Paul | .1986 |
| 'Flamboyant' | Medium | Yellow | Streaked | - | Unknown | Pale-Lavender | - | Tompkins, Chet & Aden, Paul | .1978 |
| 'Floradora' | Medium | Med-Green | - | - | Hybrid | Pale-Lavender | July | Tompkins, Chet & Aden, Paul | .1978 |
| 'Floral Mass' | - | - | - | - | Unknown | - | - | Aden, Paul | --NR-- |
| 'Flow Swirls' | Medium | Med-Green | Marginal | White | Hybrid | Pale-Lavender | July | Aden, Paul | .1978 |
| 'Fragrant Blue' | Large | Blue/Green | - | - | Unknown | Pale-Lavender | August | Vaughn, Kevin & Aden, Paul | .1988 |
| 'Fragrant Candelabra' | Medium | Blue/Green | Streaked | Speckles | Hybrid | Near-White | August | Aden, Paul | .1982 |
| 'Fragrant Gold' | Large | Yellow | - | - | Hybrid | Pale-Lavender | July into August | Aden, Paul | .1982 |
| 'Fragrant Tot' | Small | Yellow | Streaked | Blue-Green | Hybrid | Pale-Lavender | September | Aden, Paul | .1982 |
| 'Fringe Benefit' | Large | Med-Green | Marginal | Creamy White | Hybrid | Pale-Lavender | July | Vaughn, Kevin & Aden, Paul | .2010 |
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