| Cultivar Name | Plant Size | Origin | Flower Color | Season | Source | Registered |
| 'Faerie Dust' | Large | Unknown | - | June into July | Brown, Sandy | .2010 |
| 'Fairy Dust' | Miniature | Hybrid | - | - | Solberg, Robert | .2019 |
| 'Fairy Frolic' | Small | Unknown | Light-Purple | July | Milhorn, Hank & Milhorn, Jane | .1997 |
| 'Farewell Party' | Large | Hybrid | Near-White | June into July | Zilis, Mark | .2010 |
| 'Fat Cat' | Large | Hybrid | Pure-White | June into July | Ward, Dr Dick & Ward, Jane | .1996 |
| 'Fat Cheeks' | Small | Hybrid | Pale-Lavender | June into July | Jones, Leonard | .2005 |
| 'Faux Merry Merry' | Medium | Unknown | - | - | Schembs, Michael | --NR-- |
| 'Feather Boa' | Small | Hybrid | Light-Purple | July | O'Harra, Russ | .1991 |
| 'Field Gold' | Giant | Unknown | - | - | Unknown | --NR-- |
| 'Fire Island' | Medium | Hybrid | Pale-Lavender | August to October | Brincka, Wm | .1998 |
| 'Fire Starter' | Large | Sport | Pale-Lavender | August | Green Mountain Hosta | --NR-- |
| 'First Kiss' | Small | Hybrid | - | June into July | Kwick, Charles | .2016 |
| 'First Up' | Miniature | Unknown | - | - | Goodwin, Randy | --NR-- |
| 'Flamenco Dancer' | Large | Hybrid | - | - | Ruff, Doug | --NR-- |
| 'Flemish Design' | Medium | Sport | Pale-Lavender | July into August | Van Eechaute, Danny | .2014 |
| 'Flemish Gold' | Medium | Hybrid | Pale-Lavender | July into August | Van Eechaute, Danny | .2006 |
| 'Fleshing Design' | Medium | Sport | Light-Purple | July into August | Unknown | --NR-- |
| 'Floratini' | Miniature | Hybrid | Light-Purple | August | Zilis, Mark | .2009 |
| 'Focal Point' | Miniature | Hybrid | Pale-Lavender | August to September | Dean, Don | .2019 |
| 'Fog Light' | Medium | Hybrid | Med-Lavender | - | Scheer, Alttara | --NR-- |
| 'Follow Your Dreams' | Medium | Sport | Pale-Lavender | July into August | Schwarz, Jim | --NR-- |
| 'Forest Moon' | Large | Unknown | Near-White | June into July | Goodwin, Randy | .2005 |
| 'Forest Sparkle' | Medium | Unknown | - | - | Goodwin, Randy | --NR-- |
| 'Fort Knox' | Large | Hybrid | Pale-Lavender | - | Wilkins, Dr Jim & Wilkins, Jill | .1989 |
| 'Foundry Gold' | Large | Unknown | - | - | Hackbarth, Robert | .2015 |
| 'Fountain of Gold' | Medium | Unknown | - | - | Benedict, Dr Ralph (Herb) | --NR-- |
| 'Fourteen Carats' | Large | Sport | Near-White | June into July | Fransen, Marco & Fransen, Joyce | --NR-- |
| 'Foxfire Firefly' | Large | Hybrid | - | July | Schulte, Steve | --NR-- |
| 'Foxfire Moon Dust' | Medium | Hybrid | Light-Purple | July | Schulte, Steve | --NR-- |
| 'Fragrant Gold' | Large | Hybrid | Pale-Lavender | July into August | Aden, Paul | .1982 |
| 'Franc's Trailer Jon' | Large | Unknown | - | June into July | Freeman, Franc | .2009 |
| 'Franklin Center' | Medium | Unknown | - | - | Goodwin, Randy | --NR-- |
| 'French Cancan' | Medium | Hybrid | - | - | Cornitensis, Roger | --NR-- |
| 'French Kiss' | Medium | Hybrid | Pale-Lavender | July into August | Johnson, Greg | .2004 |
| 'Fried Bananas' | Large | TC Sport | Pale-Lavender | August | Solberg, Robert | .1994 |
| 'Fried Yellow Tomatoes' | Large | Sport | Pale-Lavender | August to September | Van den Top, Jan | --NR-- |
| 'Frills' | Medium | Unknown | Near-White | July into August | Benedict, Dr Ralph (Herb) & Kuenster, Rod | .2010 |
| 'Frilly Fantasy' | Small | Unknown | Light-Purple | July into August | Schulz, Ed | .2016 |
| 'Frisian Association' | Medium | Hybrid | Pale-Lavender | - | Aukema, Bate | --NR-- |
| 'Frisian Bells' | Medium | Hybrid | - | August | Aukema, Bate | --NR-- |
| 'Frisian Early Gold' | Large | Unknown | - | - | Aukema, Bate | --NR-- |
| 'Frisian Yellow Waves' | Medium | Hybrid | Med-Lavender | - | Aukema, Bate | --NR-- |
| 'Frosted Heart' | Medium | Unknown | - | - | Vincun, Rachel | --NR-- |
| 'Frosted Lemon' | - | Hybrid | - | - | Jolliffe, Thomas | --NR-- |
| 'Fruehlingssonne' | Medium | Unknown | - | - | Klose, Heinz | --NR-- |
| 'Fruit Punch' | Medium | Hybrid | - | - | Dean, Don | .1999 |
| 'Funny Bones' | Small | Hybrid | Pale-Lavender | August to October | Dalton, Jim & Dalton, Meg | .2012 |
| 'Fury of Flame' | Medium | Hybrid | Light-Purple | July | Zilis, Mark | .1985 |
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