| Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
| 'Sarah Fackey' | Medium | Med-Green | Marginal | Yellow | Unknown | - | June into July | Benedict, Dr R. (Herb) & Dorothy & Kuenster, Rod | .2010 |
| 'Scorpio' | Large | Dark-Green | - | - | Hybrid | - | June into July | Husemann, Jim | .2010 |
| 'Shadow Wood Ruffles' | Medium | Yellow | - | - | Unknown | - | - | Goodwin, Randy | .2013 |
| 'Sharon's Choice' | Small | Med-Green | Streaked | Yellow | Hybrid | - | July into August | Hicks, Gerry | .2014 |
| 'Shirofukurin Hime Iwa' | Miniature | Dark-Green | Marginal | White | Nat-Sport | Pale-Lavender | September | Watanabe, Kenji & Ruh, Peter | .2001 |
| 'Smoke Signals' | Large | Blue/Green | - | - | Unknown | Pale-Lavender | July into August | Stegeman, Bev & Dave | .2008 |
| 'Snakeskin Boots' | Giant | Blue/Green | Marginal | Yellow | Hybrid | Pale-Lavender | June into July | Hackbarth, Robert | .2015 |
| 'Solo Flight' | Medium | Dark-Green | - | - | Hybrid | Med-Lavender | July | Cross, Peter | .2001 |
| 'Spring Back' | Medium | Yellow | - | - | Nat-Sport | Pale-Lavender | July into August | Asch, Stuart | .2009 |
| 'Spring Shower' | Medium | Blue/Green | - | - | Hybrid | Pale-Lavender | July | Solberg, Robert | .2007 |
| 'Star Power' | Large | Yellow | - | - | Hybrid | - | - | Beilstein, Doug & Mardy | .2009 |
| 'Sublime Lime' | Medium | Light-Green | - | - | Unknown | - | June into July | Kruer, George | .2009 |
| 'Summer Showcase' | Large | Light-Green | Marginal | Yellow | Unknown | - | - | Goodwin, Randy | .2009 |
| 'Sun Safari' | Large | Yellow | - | - | Unknown | Pale-Lavender | - | Goodwin, Randy | .2014 |
| 'Supreme Court Justice' | Giant | Dark-Green | Marginal | Yellow | Hybrid | Pale-Lavender | June into July | Gage, Terry | .2015 |
| 'Surrender' | Medium | Med-Green | Marginal | White | Unknown | - | July into August | Goodwin, Randy | .2005 |
| 'Sybil' | Small | Med-Green | Medial | White | Nat-Sport | - | June into July | Pinterics, Michael | .2002 |
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