| Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
| 'Faerie Cups' | Large | Blue/Green | - | - | Unknown | - | June into July | Brown, Sandy | .2010 |
| 'Faerie Dust' | Large | Yellow | - | - | Unknown | - | June into July | Brown, Sandy | .2010 |
| 'Family Crest' | Medium | Med-Green | - | - | Hybrid | Pale-Lavender | August to September | Avent, Tony | .2012 |
| 'Fascinating Rhythm' | Large | Med-Green | Streaked | White | Hybrid | Pale-Lavender | June into July | Ward, Dr Dick & Jane | .2014 |
| 'Fertile Phyllis' | Large | Blue/Green | - | - | Unknown | Near-White | June into July | Asch, Stuart | .2010 |
| 'Final Victory' | Large | Med-Green | Marginal | Yellow | Nat-Sport | Pale-Lavender | July into August | Van Eechaute, Danny | .2012 |
| 'Finn's Finest' | Medium | Blue/Green | Medial | Yellow | Nat-Sport | Near-White | June into July | Keller, Robert | .2008 |
| 'First Light' | Small | Dark-Green | Medial | Yellow | Nat-Sport | Pale-Lavender | July into August | Philips, Hugo | .2010 |
| 'Flash Forward' | Small | Blue/Green | Marginal | Green | Nat-Sport | Pale-Lavender | June into July | Walters Gardens | .2014 |
| 'Fleeta's Fantasy' | Medium | Blue/Green | Medial | Green | Unknown | Near-White | June into July | Woodroffe, Fleeta Brownell & Ruh, Peter | .1999 |
| 'Flemish Angel' | Medium | Blue/Green | Marginal | Yellow | Nat-Sport | Pale-Lavender | June into July | Van Eechaute, Danny | .2009 |
| 'Flemish Design' | Medium | Yellow | - | - | Nat-Sport | Pale-Lavender | July into August | Van Eechaute, Danny | .2014 |
| 'Flemish Master' | Large | Blue/Green | Marginal | White | Hybrid | Pale-Lavender | June | Van Eechaute, Danny | .2013 |
| 'Flemish Milkshake' | Medium | Blue/Green | Streaked | Yellow | Nat-Sport | - | June into July | Van Eechaute, Danny | .2008 |
| 'Flirtatious' | Small | Med-Green | Streaked | Yellow | Unknown | - | - | Asch, Stuart | --NR-- |
| 'Floral Top #14' | Medium | Med-Green | - | - | Unknown | Near-White | June into July | Tompkins, Chet | --NR-- |
| 'Floramora' | Medium | Med-Green | - | - | Hybrid | Near-White | August to September | Avent, Tony | .2012 |
| 'Fond Farewell' | Large | Blue/Green | - | - | Hybrid | Pure-White | June into July | Schulz, Ed | .2002 .2018 |
| 'Fond Memory' | Large | Dark-Green | Marginal | Yellow | Nat-Sport | Pale-Lavender | July | Malloy, Alex | .2000 |
| 'Fore Sail' | Large | Dark-Green | Marginal | White | Unknown | - | - | Goodwin, Randy | .2009 |
| 'Forest Moon' | Large | Yellow | - | - | Unknown | Near-White | June into July | Goodwin, Randy | .2005 |
| 'Forest Pebbles' | Medium | Dark-Green | Marginal | White | Unknown | Light-Purple | - | Goodwin, Randy | .2009 |
| 'Forever Young' | Large | Dark-Green | - | - | Hybrid | Med-Lavender | July into August | Husemann, Jim & Zilis, Mark | .2016 |
| 'Foundry Gold' | Large | Yellow | - | - | Unknown | - | - | Hackbarth, Robert | .2015 |
| 'Fountain' | Giant | Blue/Green | - | - | Hybrid | Near-White | June into July | Hensen, Karel | .1983 |
| 'Foxfire Night Skye' | Medium | Dark-Green | Marginal | Yellow | Nat-Sport | Light-Purple | June into July | Schulte, Steve | .2009 |
| 'Foxfire Nightsong' | Medium | Dark-Green | Medial | White | Nat-Sport | Pale-Lavender | July | Schulte, Steve | --NR-- |
| 'Foxfire X-Philes' | Medium | Blue/Green | Medial | Yellow | Nat-Sport | Near-White | June into July | Schulte, Steve & Silvers, Bill | .2009 |
| 'Fragrant Queen' | Medium | Dark-Green | Marginal | White | Nat-Sport | Pale-Lavender | July into August | van den Top, Jan & Van Eechaute, Danny | .2008 |
| 'Franc and Ed' | Large | Blue/Green | - | - | Unknown | - | July into August | Schulz, Ed | .2015 |
| 'Franc's Blueboy Lost' | Small | Blue/Green | - | - | Unknown | - | June into July | Freeman, Franc & Sally | .2010 |
| 'Franc's Green Bomber' | Giant | Dark-Green | - | - | Unknown | - | June into July | Freeman, Franc | .2010 |
| 'Franc's Mor Blue' | Medium | Blue/Green | - | - | Unknown | - | June into July | Freeman, Franc & Sally | .2010 |
| 'Freising' | Small | Light-Green | - | - | Hybrid | Near-White | - | Mȕssel, Hermann, Klose, Heinz & Ruh, Peter | .2009 |
| 'Freising Variegated' | Small | Light-Green | Marginal | Yellow | Nat-Sport | Near-White | - | Mȕssel, Hermann | --NR-- |
| 'Friar Fritz' | Giant | Dark-Green | - | - | Unknown | - | - | Hackbarth, Robert | .2015 |
| 'Friday Morning Coffee' | Large | Blue/Green | Marginal | Green | Unknown | - | June into July | Freeman, Franc | .2010 |
| 'Friendly Persuasion' | Large | Med-Green | - | - | Nat-Sport | Near-White | June into July | Ward, Dr Dick & Jane | .2013 |
| 'Friends Forever' | Large | Blue/Green | - | - | Unknown | Pure-White | July into August | King, Herb & Gladys | .2018 |
| 'Frills' | Medium | Yellow | - | - | Unknown | Near-White | July into August | Benedict, Dr R. (Herb) & Kuenster, Rod | .2010 |
| 'Frilly Frolic' | Large | Blue/Green | - | - | Hybrid | Pale-Lavender | July into August | Dean, Don | .2015 |
| 'Frilly Lady' | Medium | Light-Green | Marginal | White | Hybrid | Near-White | July | Graves, Butch | .2015 |
| 'Frog Bog' | Medium | Light-Green | - | - | Unknown | Pale-Lavender | July into August | Munson, Jim | .2008 |
| 'Frog Milhouse' | Medium | Light-Green | Marginal | Yellow | Unknown | - | July into August | Goodwin, Randy | .2016 |
| 'Frost Giant' | Giant | Blue/Green | Marginal | Yellow | Unknown | Pale-Lavender | June into July | Lefever, Wyatt & Solberg, Robert | .2008 |
| 'Frosted Evening' | Large | Med-Green | Marginal | White | Nat-Sport | Pale-Lavender | July into August | Kuenster, Rod | .2008 |
| 'Frosted Flakes' | Large | Light-Green | - | - | Unknown | - | - | Livingston, Ron | --NR-- |
| 'Frosted Morning' | Large | Med-Green | Marginal | White | Unknown | Pale-Lavender | July into August | Kuenster, Rod | .2008 |
| 'Frozen Jacket' | Medium | Blue/Green | Marginal | White | Nat-Sport | - | - | Philips, Hugo | .2011 |
| 'Fumiko' | Medium | Blue/Green | - | - | Unknown | Med-Lavender | July | Klose, Heinz & Ruh, Peter & Jean | .2003 |
| 'Funny Face' | Large | Med-Green | - | - | Unknown | - | June into July | Ward, Dr Dick & Jane | .2014 |
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