| Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Season | Source | Registered |
| 'Sabertooth' | Large | Blue/Green | - | - | Hybrid | July | Woodford, R. | .2000 |
| 'Sabrina' | Medium | Yellow | - | - | Hybrid | July into August | Vissers, Louis | .2016 |
| 'Sabrina' | Small | Dark-Green | - | - | Unknown | - | Bastille, Jocelyne | --NR-- |
| 'Sagae' | Giant | Yellow | Marginal | Creamy White | Nat-Sport | July into August | Watanabe, Kenji & Hagiwara, Eigon | .1987 |
| 'Saginaw' | Small | Light-Green | - | - | Unknown | June into July | Krossa, Gus & Ruh, Peter & Jean | .2009 .2018 |
| 'Sahara Nights' | Small | Blue/Green | - | - | Unknown | July | Terpening, Kent | --NR-- |
| 'Sails at Sunset' | Large | Light-Green | Marginal | Green | Hybrid | June into July | Elslager, Ed | .2001 |
| 'Sails Ho' | Large | Blue/Green | Medial | Green | Nat-Sport | July into August | Lydell, Ransom | .1995 |
| 'Saint Elmo's Fire' | Medium | Med-Green | Marginal | White | TC Sport | July into August | Solberg, Robert | .1995 |
| 'Saint Fiacre' | Small | Blue/Green | - | - | Hybrid | - | Bowden, Roger | --NR-- |
| 'Saint Sebastian' | Medium | Med-Green | - | - | Hybrid | August to September | Zolock, Steve & Sarah | .2011 |
| 'Sally and Bob' | Medium | Med-Green | Streaked | Speckles | Hybrid | July | Owens, Clarence | .1994 |
| 'Sally Hoffman' | Small | Med-Green | Marginal | Yellow | Hybrid | June into July | Ward, Dr Dick & Jane | .2014 |
| 'Salsa' | Large | Blue/Green | Medial | Speckles | Nat-Sport | August | Roozekrans, Andi | .2002 |
| 'Salute' | Medium | Blue/Green | - | - | Hybrid | August to October | Benedict, Dr Ralph (Herb) | .1995 |
| 'Sam Spade' | Medium | Dark-Green | Marginal | Yellow | Hybrid | August | Schulz, Ed | .2002 |
| 'Sanctuary' | Large | Blue/Green | - | - | Hybrid | August to September | Carlson, Monty & Julie | --NR-- |
| 'Sand Pebbles' | Medium | Med-Green | Medial | Yellow | Hybrid | July into August | Lachman, Wm & Eleanor & Walek, Kevin | .2009 |
| 'Sand Pebbles Streaked' | Medium | Med-Green | Streaked | White | Nat-Sport | July into August | Unknown | --NR-- |
| 'Sarah Farmer' | Large | Dark-Green | Streaked | Speckles | Nat-Sport | July | Trafton, Burton Jr. | .1975 |
| 'Sarah Jane' | Large | Med-Green | Marginal | Creamy White | Nat-Sport | July into August | Ward, Dr Dick & Jane | .1997 |
| 'Sarah Katherine' | Medium | Light-Green | - | - | Hybrid | July into August | Simmering, Ron | .2005 |
| 'Sarah's Sister' | Large | Med-Green | Marginal | Yellow | Nat-Sport | July into August | Hicks, Gerry | .2015 |
| 'Satin Beauty' | Large | Med-Green | - | - | Unknown | June into July | Fisher, Eunice V. & AHS | .1986 |
| 'Satin Doll' | Medium | Med-Green | Streaked | White | Hybrid | June | Ward, Dr Dick & Jane | .2012 |
| 'Saturday Moon' | Medium | Yellow | - | - | Hybrid | June into July | Cox, A. & Moore, Jeff | .2015 |
| 'Saturn' | Medium | Med-Green | - | - | Nat-Sport | July | Banyai, Pauline | --NR-- |
| 'Savannah' | Large | Med-Green | Marginal | White | Unknown | August | Suggs, Natalee & Zilis, Mark | .1999 |
| 'Savannah Emerald' | Large | Yellow | - | - | TC Sport | August | Zilis, Mark | .2003 |
| 'Savannah Supreme' | Large | Med-Green | Marginal | White | TC Sport | August | Zilis, Mark | .2003 |
| 'Save the Last Dance for Me' | Medium | Light-Green | - | - | Hybrid | July into August | Kwick, Charles | .2017 |
| 'Saw Mill' | Miniature | Light-Green | - | - | Hybrid | July | Malloy, Alex | .1999 |
| 'Sayuri' | Medium | Med-Green | - | - | Hybrid | July into August | Nyikos, Frank | .2007 |
| 'Scaredy Cat' | Small | Light-Green | - | - | Hybrid | June into July | Jones, Leonard | .2006 |
| 'Scheherazade' | Medium | Blue/Green | - | - | Hybrid | July into August | Dalton, Jim & Meg | .2012 |
| 'Schneck' | Small | Blue/Green | - | - | Unknown | - | Maindok, Hans-Hennig | --NR-- |
| 'Schrödinger's Cat' | Miniature | Med-Green | Streaked | White | Nat-Sport | July | Philips, Hugo | --NR-- |
| 'Scituate Sunrise' | Large | Yellow | - | - | Hybrid | - | Goodenough, Rick & Sanford, Matt | --NR-- |
| 'Scugog Rising Star' | Medium | Light-Green | Medial | Blue-Green | Unknown | - | Lamrock's Country Garden | --NR-- |
| 'Sea Angel Wings' | Medium | Yellow | - | - | Unknown | July | Seaver, Mildred | --NR-- |
| 'Sea Beacon' | Large | Med-Green | Marginal | Yellow | Unknown | July | Seaver, Mildred | .2004 |
| 'Sea Biscuit' | Medium | Dark-Green | - | - | Unknown | June into July | Seaver, Mildred | --NR-- |
| 'Sea Current' | Medium | Med-Green | - | - | Hybrid | July | Seaver, Mildred | .2001 |
| 'Sea Dream' | Large | Yellow | Marginal | Creamy White | Hybrid | July into August | Seaver, Mildred | .1984 |
| 'Sea Drift' | Large | Blue/Green | - | - | Hybrid | July | Seaver, Mildred | .1978 |
| 'Sea Fire' | Medium | Yellow | - | - | Unknown | July into August | Seaver, Mildred | .2004 |
| 'Sea Frolic' | Large | Med-Green | - | - | Hybrid | June into July | Seaver, Mildred | .2004 |
| 'Sea Lotus Leaf' | Large | Blue/Green | - | - | Hybrid | July | Seaver, Mildred | .1985 |
| 'Sea Mist' | Medium | Light-Green | Marginal | Green | Hybrid | June into July | Seaver, Mildred & Walek, Kevin | .2009 |
| 'Sea Prize' | Large | Med-Green | Streaked | Yellow | Unknown | July | Seaver, Mildred & Walek, Kevin | .2009 |
| 'Sea Prize Green' | Medium | Med-Green | Streaked | Speckles | Nat-Sport | July | Wade, Van | --NR-- |
| 'Sea Sprite' | Small | Yellow | Marginal | Dark Green | Hybrid | August to October | Seaver, Mildred | .1978 |
| 'Sea Sunrise' | Small | Light-Green | Streaked | Speckles | Hybrid | July | Seaver, Mildred | .1982 |
| 'Sea Waves' | Large | Light-Green | - | - | Unknown | June into July | Seaver, Mildred & Walek, Kevin | .2009 |
| 'Sea White Gold' | Large | Light-Green | - | - | Unknown | June into July | Seaver, Mildred | .1999 |
| 'Sea Yellow Sunrise' | Medium | Yellow | - | - | Nat-Sport | July | Seaver, Mildred | .1985 |
| 'Searchlight' | Medium | Med-Green | Streaked | White | Nat-Sport | July into August | Malloy, Tony | .2001 |
| 'Seawave' | Large | Blue/Green | - | - | Nat-Sport | July into August | Smith, Eric | --NR-- |
| 'Second Coming' | Medium | Dark-Green | Streaked | White | Nat-Sport | August | Bennett, Gerry | --NR-- |
| 'Second Wind' | Medium | Dark-Green | - | - | Nat-Sport | July into August | Kulpa, John | .1991 |
| 'Secret Ambition' | Medium | Med-Green | Marginal | White | Nat-Sport | August | van den Top, Jan | --NR-- |
| 'Secret Thoughts' | Small | Blue/Green | Streaked | Yellow | Nat-Sport | August | van den Top, Jan | --NR-- |
| 'See Saw' | Medium | Med-Green | Marginal | White | Nat-Sport | July | Summers, Alex & AHS | .1986 |
| 'See Ya Later' | Large | Yellow | - | - | Nat-Sport | July | Williams (Unknown) | --NR-- |
| 'Seiryu' | Medium | Med-Green | Streaked | White | Nat-Sport | July into August | Unknown | --NR-- |
| 'Seiryu Aiyagawa' | Medium | Dark-Green | Streaked | White | Nat-Sport | July into August | Unknown | --NR-- |
| 'Seiryu Kiyosumi' | Medium | Med-Green | Streaked | White | Unknown | - | Unknown | --NR-- |
| 'Send Your Camel to Bed' | Medium | Med-Green | Marginal | Light Green | Nat-Sport | July into August | Dammen, Mike | .2018 |
| 'Seneca' | Medium | Light-Green | Marginal | Green | Unknown | July | Tobey, M & Chamberlain, Steve | .2000 |
| 'Senora Colleen' | Medium | Med-Green | - | - | Hybrid | July into August | Kwick, Charles | .2016 |
| 'September Sun' | Large | Blue/Green | Medial | Yellow | Nat-Sport | July into August | Solberg, Robert | .1985 |
| 'September Sunrise' | Large | Yellow | - | - | Nat-Sport | July into August | Englerth, Lawrence | --NR-- |
| 'September Surprise' | Large | Light-Green | Marginal | Green | Nat-Sport | August | Walters Gardens | .1997 |
| 'Seraphim' | Giant | Blue/Green | - | - | Nat-Sport | July into August | Thompson, Steve | --NR-- |
| 'Serapis' | Small | Med-Green | Marginal | White | Nat-Sport | July into August | Malloy, Alex | .2000 |
| 'Serena' | Medium | Blue/Green | - | - | Unknown | July | Hunt, Roger | --NR-- |
| 'Serendipity' | Medium | Blue/Green | - | - | Hybrid | July | Aden, Paul | .1978 |
| 'Serendipity Singer' | Medium | Med-Green | Medial | Yellow | Nat-Sport | July | Goodenough, Rick | .2004 |
| 'Sergeant Pepper' | Medium | Blue/Green | Marginal | Yellow | Unknown | August | Wasitis, Chick | .2001 |
| 'Serpentine' | Medium | Light-Green | - | - | Hybrid | July into August | Scheer, Alttara & Gilligan, Madelon | .2015 .2018 |
| 'Shade Fanfare' | Medium | Med-Green | Marginal | Creamy White | Nat-Sport | July | Aden, Paul | .1986 |
| 'Shade Finale' | Small | Med-Green | - | - | Nat-Sport | July into August | Goodwin, Randy | .2005 |
| 'Shade Master' | Medium | Yellow | - | - | Hybrid | July | Aden, Paul | .1982 |
| 'Shade Parade' | Small | Light-Green | Marginal | White | Nat-Sport | July | Goodwin, Randy | .2005 |
| 'Shades of Mercy' | Small | Med-Green | Streaked | Yellow | Nat-Sport | August | Snyder, Ron | .1998 |
| 'Shady Choice' | Large | Med-Green | - | - | TC Sport | July into August | Diesen, Bernie & Jane | .1998 |
| 'Shake for Me' | Small | Light-Green | - | - | Nat-Sport | - | Van Eechaute, Danny | --NR-- |
| 'Shall We Dance' | Medium | Dark-Green | Streaked | Yellow | Nat-Sport | July into August | Ward, Dr Dick & Jane | .2012 |
| 'Shangrila' | Large | Light-Green | Marginal | Yellow | Nat-Sport | August to September | Malloy, Alex | --NR-- |
| 'Sharmon' | Small | Med-Green | - | - | Nat-Sport | July into August | Donahue, Thomas | .1986 |
| 'Sharp Dressed Man' | Medium | Med-Green | Medial | White | Hybrid | July | Solberg, Robert | .2005 |
| 'Shawmut' | Medium | Blue/Green | Marginal | Yellow | Nat-Sport | July | Malloy, Alex | .1999 |
| 'Shazaam' | Medium | Med-Green | Marginal | White | Hybrid | August to October | Avent, Tony | .2007 |
| 'Shazaam' | Medium | Blue/Green | Marginal | Yellow | Hybrid | August to October | Jones, Gil | .2007 |
| 'Shazam' | Medium | Dark-Green | Marginal | White | Unknown | July | Malloy, Alex | --NR-- |
| 'Sheila Macqueen' | Medium | Dark-Green | Streaked | Speckles | Unknown | June into July | Bennerup, Pierre | .2000 |
| 'Sheila West' | Large | Med-Green | Medial | Yellow | TC Sport | July into August | West, Colin | --NR-- |
| 'Shell Bell' | Medium | Light-Green | Marginal | Yellow | Nat-Sport | July | Jones, Leonard | .1999 |
| 'Shelleys' | Large | Med-Green | Marginal | Yellow | Unknown | July into August | Hodgkin, Mrs. Eliot | .1988 |
| 'Shenandoah Abbey' | Large | Blue/Green | - | - | Hybrid | - | Malloy, Alex | .2000 |
| 'Shenanigans' | Medium | Dark-Green | Marginal | White | Unknown | July | Aden, Paul | --NR-- |
| 'Sherborne Profusion' | Medium | Blue/Green | - | - | Unknown | June into July | Smith, Eric & BHHS | .1988 |
| 'Sherborne Songbird' | Large | Blue/Green | - | - | Unknown | July into August | Smith, Eric & BHHS | .1988 |
| 'Sherborne Swallow' | Medium | Blue/Green | - | - | Unknown | July | Smith, Eric & BHHS | .1988 |
| 'Shere Khan' | Small | Med-Green | Marginal | White | TC Sport | June | Zumbar, Wm | .1995 |
| 'Sheriff of Nottingham' | Medium | Yellow | - | - | Nat-Sport | June | Zilis, Mark & Schwarz, Jim | .2012 |
| 'Sherwood Forest' | Large | Dark-Green | - | - | Hybrid | June | Lachman, Wm & Eleanor | .1993 |
| 'Shimmer' | Small | Blue/Green | Marginal | Yellow | Hybrid | August | Dean, Don | .2018 |
| 'Shimmy Shake' | Medium | Med-Green | - | - | Unknown | - | Scheer, Alttara | --NR-- |
| 'Shining Spirit' | Small | Light-Green | Medial | Yellow | Nat-Sport | July | Malloy, Alex | --NR-- |
| 'Shiny Sonata' | Medium | Dark-Green | - | - | Nat-Sport | - | van den Top, Jan | --NR-- |
| 'Shiny Substance' | Large | Light-Green | - | - | Nat-Sport | July into August | van den Top, Jan | --NR-- |
| 'Shirley' | Medium | Yellow | Marginal | Green | Unknown | July | Wade, Van | .1998 |
| 'Shirobana Kanzashi' | Large | Blue/Green | - | - | Hybrid | - | Malloy, Alex | .2000 |
| 'Shirobana Kiyosumi' | Medium | Med-Green | - | - | Unknown | July | Unknown | --NR-- |
| 'Shirofukurin Hime Iwa' | Miniature | Dark-Green | Marginal | White | Nat-Sport | September | Watanabe, Kenji & Ruh, Peter | .2001 |
| 'Shirofukurin Hosoba Mizu' | Small | Med-Green | Marginal | White | Nat-Sport | September | Unknown | --NR-- |
| 'Shirofukurin Oba' | Large | Med-Green | Marginal | White | Nat-Sport | July | Watanabe, Kenji | --NR-- |
| 'Shirofukurin Shikoku' | Medium | Light-Green | Marginal | Green | Unknown | August to September | Unknown | --NR-- |
| 'Shirofukurin Sudare' | Small | Med-Green | Marginal | White | Nat-Sport | August to October | Unknown | --NR-- |
| 'Shirofukurin Wakayama' | Small | Med-Green | Marginal | White | Nat-Sport | August to September | Unknown | --NR-- |
| 'Shironakafu Sudare' | Medium | Med-Green | Medial | White | Nat-Sport | August to September | Unknown | --NR-- |
| 'Shocking Chartreuse' | Medium | Light-Green | - | - | Hybrid | - | Vaughn, Kevin | .1982 |
| 'Shogun' | Large | Light-Green | Marginal | White | Hybrid | July | Aden, Paul | .1983 |
| 'Shooting Star' | Large | Blue/Green | - | - | Nat-Sport | July | van den Top, Jan | --NR-- |
| 'Short and Sweet' | Miniature | Blue/Green | Streaked | White | Hybrid | July into August | Elslager, Ed | .2004 |
| 'Show Me' | Small | Med-Green | Medial | White | TC Sport | July | Tempel, Arlie | --NR-- |
| 'Show Me More' | Medium | Dark-Green | Medial | White | Nat-Sport | July into August | Unknown | --NR-- |
| 'Show Me's Mom' | Giant | Dark-Green | Medial | White | Nat-Sport | July | Tempel, Arlie | --NR-- |
| 'Showboat' | Large | Blue/Green | Marginal | White | Hybrid | July | Lachman, Wm & Eleanor | .1993 |
| 'Shuho Nishiki' | Large | Yellow | Marginal | Green | Unknown | July into August | Unknown | --NR-- |
| 'Shunko Nishiki' | Large | Light-Green | Marginal | Blue-Green | Nat-Sport | - | Unknown | --NR-- |
| 'Si Senor Pablo' | Medium | Dark-Green | - | - | Hybrid | June into July | Freeman, Franc | .2011 |
| 'Sibling to Summer Fragrance' | Large | - | - | - | Unknown | August | Vaughn, Kevin | --NR-- |
| 'Sienna Susan' | Large | Light-Green | Marginal | White | Nat-Sport | June into July | Walker, O. & Potts, C. | .2019 |
| 'Sight for Sore Eyes' | Small | Yellow | - | - | Hybrid | July into August | Goodwin, Randy | .2013 |
| 'Silberpfeil' | Medium | Blue/Green | - | - | Unknown | September | Klose, Heinz & Ruh, Peter & Jean | .1990 |
| 'Silent Prayers' | Medium | Med-Green | Streaked | White | Nat-Sport | June into July | Chaulk, Sarah & Joe | --NR-- |
| 'Silk Kimono' | Large | Dark-Green | Marginal | Yellow | Hybrid | July into August | Gowen, Hideko & Hansen, Hans | .1999 |
| 'Silk Road' | Medium | Med-Green | Marginal | Yellow | Nat-Sport | July into August | Hansen, Hans & Shady Oaks Nursery | --NR-- |
| 'Silver and Gold' | Large | Med-Green | Marginal | White | Nat-Sport | July into August | Lydell, Ransom | .1995 |
| 'Silver Certificate' | Small | Dark-Green | Medial | White | Nat-Sport | July into August | Meyer, Bill | --NR-- |
| 'Silver Chalice' | Medium | Yellow | Marginal | White | Nat-Sport | July | Elslager, Ed | .2005 |
| 'Silver Creek Sunshine' | Medium | Med-Green | Marginal | Yellow | Hybrid | September | Savory, Dennis | .1996 |
| 'Silver Eagle' | Medium | Dark-Green | Streaked | White | TC Sport | July into August | Stark, Dean | --NR-- |
| 'Silver Light' | Small | Blue/Green | - | - | Hybrid | July into August | Knoppert, Rene | .2013 |
| 'Silver Lining' | - | Blue/Green | - | - | Unknown | - | Janssen, Bill | --NR-- |
| 'Silver Lining' | Medium | Dark-Green | Marginal | White | Nat-Sport | July into August | Savory, Robert | --NR-- |
| 'Silver Lode' | Large | Dark-Green | Medial | White | Nat-Sport | July | Klehm, Roy | .1999 |
| 'Silver Mine' | Miniature | Med-Green | - | - | Hybrid | July | Malloy, Alex | .1999 |
| 'Silver Moon' | Large | Dark-Green | Marginal | White | Hybrid | August | Hansen, Hans | .2007 |
| 'Silver Serenity' | Large | Blue/Green | - | - | Unknown | - | Livingston, Ron | --NR-- |
| 'Silver Shadows' | Medium | Med-Green | Marginal | White | Nat-Sport | July | Unknown | --NR-- |
| 'Silver Sheen' | Large | Blue/Green | Medial | Yellow | Nat-Sport | July | Fransen, Marco & Joyce | --NR-- |
| 'Silver Spray' | Medium | Blue/Green | Marginal | White | Unknown | July into August | Osbourne, Vera | .1991 |
| 'Silver Star' | Medium | Med-Green | Marginal | White | Unknown | July into August | Unknown | --NR-- |
| 'Silver Streak' | Small | Med-Green | Medial | White | Unknown | July | Zager, Herbert A. & AHS | .1986 |
| 'Silver Twist' | Small | Blue/Green | - | - | Unknown | - | Yinger, Barry | --NR-- |
| 'Silver Wedding' | Medium | Blue/Green | - | - | Hybrid | July | Jolliffe, Thomas | --NR-- |
| 'Silverado' | Small | Blue/Green | Marginal | White | Unknown | August to October | Kuk, Bob | .1987 |
| 'Silvery Slugproof' | Medium | Blue/Green | - | - | Hybrid | July into August | Grenfell, Diana | .1996 |
| 'Simpers New Moon' | Large | Med-Green | Marginal | Yellow | Nat-Sport | July into August | Simpers, Lucille | --NR-- |
| 'Simpers No. 5' | Giant | Dark-Green | - | - | Unknown | June | Simpers, Lucille | --NR-- |
| 'Simply Irresistible' | Small | Blue/Green | Marginal | Yellow | Nat-Sport | July into August | Wasitis, Chick | .2014 |
| 'Sing Your Camel to Bed' | Medium | Light-Green | Medial | Green | Nat-Sport | July into August | Naylor Creek Nursery | --NR-- |
| 'Singing in the Rain' | Medium | Med-Green | Marginal | Creamy White | Nat-Sport | June into July | Falstad, C.H. & Walters Gardens | .2006 |
| 'Singularity' | Small | Dark-Green | - | - | Hybrid | June into July | Bartley, J. | .2017 |
| 'Sir Augie W' | Large | Med-Green | - | - | Hybrid | June into July | Kwick, Charles | .2018 |
| 'Sir Charles' | Giant | Blue/Green | | - | Hybrid | July into August | Kwick, Charles | .2019 |
| 'Sir Francis Drake' | Large | Med-Green | - | - | Nat-Sport | July into August | Malloy, Alex | --NR-- |
| 'Sir Lancelot' | Small | Dark-Green | Streaked | White | Nat-Sport | August | Elslager, Ed | .2005 |
| 'Sir Markus Cooper' | Large | Med-Green | - | - | Unknown | July into August | Kwick, Charles | .2017 |
| 'Sir Richard' | Medium | Med-Green | Streaked | Yellow | Hybrid | July | Schwarz, Jim | .2002 |
| 'Sizzle' | Miniature | Med-Green | Medial | Yellow | Hybrid | - | King, Jim | --NR-- |
| 'Sizzler' | Large | Dark-Green | Streaked | Speckles | Hybrid | July | Elslager, Ed | .2002 |
| 'Skinny Dippin' | Small | Blue/Green | - | - | Hybrid | July into August | Avent, Tony | .2006 |
| 'Skipping School' | Medium | Dark-Green | - | - | Unknown | July into August | Kwick, Charles | .2017 |
| 'Sky Dancer' | Medium | Blue/Green | - | - | Hybrid | August to September | Van Eechaute, Danny | .2003 |
| 'Sky High' | Giant | Blue/Green | - | - | Hybrid | July into August | Elslager, Ed | .2005 |
| 'Sky King' | Medium | Med-Green | - | - | Hybrid | July into August | Purvis, Owen & Sue | .2009 |
| 'Sky Kissed' | Medium | Blue/Green | - | - | Hybrid | June into July | Powell, Loleta | .1991 |
| 'Sky Pilot' | Giant | Blue/Green | - | - | Nat-Sport | July | Green Mountain Hosta | --NR-- |
| 'Skylight' | Medium | Blue/Green | - | - | Hybrid | June | Stegeman, Bev & Dave | .2001 |
| 'Skyrocket' | Large | Yellow | - | - | Nat-Sport | July into August | Kuk, Bob | .1999 |
| 'Skyward' | Large | Blue/Green | - | - | Hybrid | June into July | Elslager, Ed | .2000 |
| 'Skywriter' | - | Blue/Green | - | - | Hybrid | August | Wols, Dan | --NR-- |
| 'Sleeping Beauty' | Small | Blue/Green | Marginal | White | Nat-Sport | July into August | Walters Gardens | .1997 |
| 'Sleeping Star' | Medium | Blue/Green | Marginal | Yellow | Nat-Sport | July into August | van den Top, Jan | --NR-- |
| 'Sleepy Hollow' | Medium | Dark-Green | Marginal | Green | Nat-Sport | June into July | Malloy, Alex | .2003 |
| 'Slim Jim' | Medium | Dark-Green | - | - | Unknown | - | Wade, Van | --NR-- |
| 'Small Parts' | Small | Dark-Green | - | - | Hybrid | July | Van Eechaute, Danny | .2006 |
| 'Small Talk' | Small | Med-Green | - | - | Unknown | June | Simpers, Lucille & Ruh, Peter | .1991 |
| 'Small World' | Miniature | Dark-Green | - | - | Hybrid | June into July | Goodwin, Randy | .2013 |
| 'Smalltown Boy' | Small | Med-Green | - | - | Nat-Sport | July into August | Van Eechaute, Danny | --NR-- |
| 'Smash Hit' | Medium | Dark-Green | Medial | Yellow | Nat-Sport | July into August | Zilis, Mark | .2012 |
| 'Smiling Mouse' | Small | Blue/Green | Marginal | Yellow | Nat-Sport | July | van den Top, Jan | --NR-- |
| 'Smiling Susan' | Medium | Med-Green | - | - | Hybrid | July | Bronson, Gary | .2013 |
| 'Smoke Signals' | Large | Blue/Green | - | - | Unknown | July into August | Stegeman, Bev & Dave | .2008 |
| 'Smokey' | Medium | Med-Green | - | - | Hybrid | July into August | Wrede, Arthur | .2006 |
| 'Smokey Mountains' | Medium | Blue/Green | - | - | Hybrid | August to September | Beilstein, Doug & Mardy | .2012 |
| 'Smooth Sailing' | Large | Yellow | Marginal | Blue-Green | Hybrid | July | Elslager, Ed | .2002 |
| 'Smoothie' | Large | Med-Green | - | - | Hybrid | August to September | Banyai, Pauline & Banyai, Bruce | .1999 |
| 'Smurfette' | Medium | Blue/Green | Marginal | White | Nat-Sport | July into August | Wilson, Chris | .2017 |
| 'Snake Charmer' | Medium | Med-Green | - | - | Hybrid | September | Stegeman, Bev & Dave | --NR-- |
| 'Snake Eyes' | Medium | Light-Green | Medial | White | Nat-Sport | July into August | Torvinen, Andy | .2005 |
| 'Snakeskin Boots' | Giant | Blue/Green | Marginal | Yellow | Hybrid | June into July | Hackbarth, Robert | .2015 |
| 'Sneak Peak' | Large | Med-Green | - | - | Nat-Sport | July into August | Crabb, Scott | --NR-- |
| 'Sno Cone' | Small | Light-Green | Medial | White | Nat-Sport | July | Solberg, Robert | .2009 |
| 'Snow Boy' | Medium | Blue/Green | Marginal | Yellow | Nat-Sport | July | van den Top, Jan | --NR-- |
| 'Snow Crust' | Large | Med-Green | Marginal | White | Nat-Sport | July into August | Zilis, Mark | .1985 |
| 'Snow Mountain' | Large | Med-Green | Marginal | White | TC Sport | July | Zilis, Mark | --NR-- |
| 'Snow Mouse' | Small | Blue/Green | Medial | White | Nat-Sport | - | Fransen, Marco | --NR-- |
| 'Snow Squall' | Large | Dark-Green | Medial | White | Nat-Sport | July into August | O'Brien, John | --NR-- |
| 'Snow White' | Small | Med-Green | Medial | White | Nat-Sport | July | Arett, Anne | .1983 |
| 'Snowbound' | Medium | Med-Green | Marginal | White | Unknown | July | Tompkins, Cynthia & Ruh, Peter & Jean | .2002 |
| 'Snowdrift' | Small | Med-Green | Medial | White | TC Sport | July | Zilis, Mark | .1985 |
| 'Snowy Lake' | Medium | Blue/Green | Marginal | White | Nat-Sport | June | Heims, Dan | --NR-- |
| 'So Sweet' | Large | Med-Green | Marginal | Creamy White | Hybrid | August | Vaughn, Kevin & Aden, Paul | .1986 |
| 'Soaring Eagle' | Giant | Med-Green | Streaked | Yellow | Hybrid | June into July | Elslager, Ed | .2002 |
| 'Soft Shoulders' | Medium | Med-Green | Marginal | White | Hybrid | August | Avent, Tony | .1995 |
| 'Solar Eclipse' | Large | Yellow | - | - | Nat-Sport | June into July | Ziarek, Ken | --NR-- |
| 'Solar Energy' | Medium | Yellow | Marginal | White | Nat-Sport | July | Unknown | --NR-- |
| 'Solar Flare' | Giant | Yellow | - | - | Unknown | June into July | Ross, Henry & Gardenview Horticultural Park | .2005 |
| 'Solarkugel' | Large | Yellow | - | - | Hybrid | June into July | Kohlein, Fritz | --NR-- |
| 'Soldier Boy' | Medium | Blue/Green | Marginal | Yellow | Unknown | June | Smith, Fred | --NR-- |
| 'Solid Gold' | Medium | Yellow | - | - | Hybrid | June into July | Savory, Dennis | .2012 |
| 'Solitude' | Medium | Blue/Green | - | - | Hybrid | August to September | Dean, Don | .2018 |
| 'Solo Flight' | Medium | Dark-Green | - | - | Hybrid | July | Cross, Peter | .2001 |
| 'Something Blue' | Large | Blue/Green | - | - | Hybrid | June into July | Simpers, Lucille & Ruh, Peter | .1991 |
| 'Something Different' | Large | Yellow | Marginal | Blue-Green | Nat-Sport | July into August | Banyai, Pauline | .1990 |
| 'Something Good' | Giant | Light-Green | - | - | Nat-Sport | August | Walters Gardens | .2000 |
| 'Song Sung Blue' | Medium | Blue/Green | Marginal | Green | Hybrid | June into July | Elslager, Ed | .2004 |
| 'Songbird' | Small | Blue/Green | Streaked | Yellow | Hybrid | June into July | Elslager, Ed | .2005 |
| 'Sookai' | Medium | Blue/Green | Marginal | Yellow | Nat-Sport | July into August | Hartmann, Jim | .2002 |
| 'Sophisticated Lady' | Large | Blue/Green | Marginal | Yellow | Hybrid | July | Ward, Dr Dick & Jane | .2000 |
| 'Soul Brother' | Small | Med-Green | - | - | Nat-Sport | July into August | Mortko, Rob | .2002 |
| 'Soul Shine' | - | Light-Green | - | - | Hybrid | July | Dean, Don | .2018 |
| 'Sound Waves' | Large | Blue/Green | - | - | Unknown | - | Kridler, Barrie | --NR-- |
| 'Sourpuss' | Giant | Blue/Green | Marginal | Yellow | Nat-Sport | July into August | Chopko, Dave | --NR-- |
| 'Southern Blues' | Medium | Blue/Green | - | - | Hybrid | June into July | McDonell, Harold | .2014 |
| 'Southern Gold' | Medium | Yellow | - | - | Hybrid | - | Davis, Art | --NR-- |
| 'Southern Music' | Medium | Dark-Green | Medial | White | Nat-Sport | July | Harris, Robert | --NR-- |
| 'Southern Pride' | Small | Light-Green | Marginal | Yellow | Hybrid | June into July | Suggs, Natalee | .1986 |
| 'Spacious Skies' | Large | Blue/Green | - | - | Hybrid | June into July | Purtymun, Charles & Hyslop, Jay | .1998 |
| 'Sparkler' | Miniature | Dark-Green | Medial | White | Nat-Sport | July into August | Zwagerman, Hannah & Walters Gardens | .2012 |
| 'Sparta Class of '59' | Small | Yellow | | - | Hybrid | July into August | Kwick, Charles | .2019 |
| 'Spartacus' | Medium | Med-Green | Marginal | White | Nat-Sport | - | Hansen, Hans | .2007 |
| 'Spartan Flash' | Medium | Med-Green | Streaked | Yellow | Nat-Sport | July | Elslager, Ed | .1998 |
| 'Spartan Gem' | Medium | Med-Green | - | - | Unknown | August to October | Banyai, Pauline | .1989 |
| 'Spartan Spear' | Medium | Med-Green | Marginal | White | Hybrid | August | Dean, Don | .2012 |
| 'Special Blend' | Medium | Blue/Green | Streaked | White | Unknown | July | Van Eechaute, Danny | --NR-- |
| 'Special Gift' | Medium | Med-Green | - | - | Hybrid | July | Fisher, Eunice V. | .1973 |
| 'Special Item' | Large | Blue/Green | - | - | Hybrid | June into July | Fisher, Eunice V. & Ruh, Peter | .1991 |
| 'Spike Jones' | Medium | Med-Green | - | - | Unknown | August | Schulz, Ed | .2002 |
| 'Spinach Soufflé' | Large | Blue/Green | Marginal | Yellow | TC Sport | July | Solberg, Robert | .2006 |
| 'Spinners' | Large | Med-Green | Marginal | White | Unknown | July | BHHS | .1988 |
| 'Splashed Leather' | Medium | Med-Green | Streaked | White | Unknown | July into August | Goodwin, Randy | .1996 |
| 'Splendid Reign' | Large | Med-Green | Marginal | Chartreuse | Nat-Sport | July into August | Johnson, Irwin | .2001 |
| 'Splendor' | Large | Yellow | Marginal | Green | Hybrid | June into July | Elslager, Ed | .2000 |
| 'Split Decision' | Large | Dark-Green | - | - | Hybrid | July | Terpening, Kent | --NR-- |
| 'Split Personality' | Large | Dark-Green | - | - | Unknown | July | Seaver, Mildred | --NR-- |
| 'Sporty' | Miniature | Light-Green | Streaked | Yellow | Hybrid | July | Elslager, Ed | .2004 |
| 'Spotted Janet' | Medium | Med-Green | Medial | Yellow | Nat-Sport | July into August | Wade, Van | --NR-- |
| 'Sprengeri' | Large | Dark-Green | - | - | Nat-Sport | July into August | Unknown | --NR-- |
| 'Spring Back' | Medium | Yellow | - | - | Nat-Sport | July into August | Asch, Stuart | .2009 |
| 'Spring Break' | Medium | Light-Green | Marginal | White | Hybrid | July into August | Asch, Stuart | .2000 |
| 'Spring Circle' | Large | Med-Green | Medial | Yellow | Nat-Sport | August | van den Top, Jan | --NR-- |
| 'Spring Fever' | Medium | Light-Green | - | - | Hybrid | July | Van Ostrand, John | .2005 |
| 'Spring Fling' | Large | Med-Green | Marginal | Yellow | Hybrid | July | Herold, Roy | .2000 |
| 'Spring Grove' | Giant | Med-Green | - | - | Unknown | July into August | Mack, Carl & Ruh, Peter & Jean | .2002 |
| 'Spring Luau' | Medium | Med-Green | - | - | Nat-Sport | August | Philips, Hugo & Van Eechaute, Danny | --NR-- |
| 'Spring Morning' | Medium | Light-Green | Marginal | White | Unknown | July | Unknown | --NR-- |
| 'Spring Shower' | Medium | Blue/Green | - | - | Hybrid | July | Solberg, Robert | .2007 |
| 'Spritzer' | Medium | Yellow | Marginal | Greenish White | Hybrid | August to October | Aden, Paul | .1986 |
| 'Spumoni' | Medium | Light-Green | Streaked | Yellow | Hybrid | July | Elslager, Ed | .2004 |
| 'Spun Silk' | Medium | Yellow | - | - | Hybrid | June | Syre-Herz, Ursula | .1990 |
| 'Spun Sulphur' | Medium | Blue/Green | - | - | Unknown | July | O'Harra, Russ | .1986 |
| 'Squiggles' | Small | Med-Green | Medial | White | Hybrid | July into August | Aden, Paul | .1978 |
| 'Squiggles Green' | Small | Med-Green | - | - | Nat-Sport | July | Wade, Van | --NR-- |
| 'Squire Rich' | Large | Light-Green | - | - | Unknown | July | Kuk, Bob | .1988 |
| 'St. Paul' | Large | Blue/Green | Medial | Yellow | Nat-Sport | July | Goad, Tom | --NR-- |
| 'Stag’s Leap' | Large | Blue/Green | Marginal | White | Nat-Sport | July into August | Goodenough, Rick | --NR-- |
| 'Stained Glass' | Large | Yellow | Medial | Green | TC Sport | August | Hansen, Hans & Shady Oaks Nursery | .1999 |
| 'Stand By Me' | Medium | Blue/Green | Medial | Yellow | Nat-Sport | - | Fransen, Marco | --NR-- |
| 'Stand Corrected' | Large | Med-Green | Marginal | Yellow | Unknown | - | Livingston, Ron | --NR-- |
| 'Standard Deviation' | Large | Med-Green | Medial | Yellow | Nat-Sport | July into August | Helsley, Calvin | .1998 |
| 'Standard's Bands' | Medium | Med-Green | Marginal | Yellow | Nat-Sport | July into August | McHugh, Ed | .2010 |
| 'Standing Tall' | Giant | Med-Green | Streaked | Yellow | Hybrid | June into July | Elslager, Ed | .2004 |
| 'Stand-up America' | Large | Dark-Green | Marginal | Yellow | Hybrid | June into July | Elslager, Ed | .2005 |
| 'Star Struck' | Small | Med-Green | Marginal | Blue-Green | Nat-Sport | August | Wilkins, Dr Jim & Jill | .1995 |
| 'Starboard Light' | Large | Yellow | - | - | Hybrid | June into July | Seaver, Charles | .1994 |
| 'Starburst' | Small | Blue/Green | Marginal | White | Hybrid | August | Eisel, Mervin | .1973 |
| 'Stardust' | Large | Yellow | - | - | Hybrid | July | Ward, Dr Dick & Jane | .1998 |
| 'Stargate' | Large | Med-Green | Streaked | Yellow | Nat-Sport | July | Wade, Van | --NR-- |
| 'Starker Yellow Leaf' | Large | Dark-Green | Medial | Yellow | Unknown | July | Starker, Carl & Ruh, Peter | .1989 |
| 'Star-kissed' | Large | Med-Green | Medial | Yellow | Nat-Sport | July | Zilis, Mark | .2006 |
| 'Starlight' | Miniature | Med-Green | Medial | White | Nat-Sport | July | Eisel, Mervin | .1973 |
| 'Stars and Stripes' | Medium | Dark-Green | Streaked | White | Hybrid | June into July | Simmering, Ron | .2000 |
| 'Starship' | Large | Light-Green | Marginal | White | Nat-Sport | July | Zilis, Mark | .2004 |
| 'Starship Enterprise' | Medium | Light-Green | Streaked | Green | Nat-Sport | July into August | Kwick, Charles | .2017 |
| 'Status Quo' | Medium | Blue/Green | Streaked | White | Unknown | June into July | de Rooij, Piet | .2013 |
| 'Stealth' | Medium | Med-Green | Streaked | White | TC Sport | July into August | Anderson, Jim | --NR-- |
| 'Steel Canopy' | Large | Blue/Green | - | - | Hybrid | June into July | Asch, Stuart | .2000 |
| 'Steely Dan' | Small | Blue/Green | - | - | Hybrid | June into July | Avent, Tony | .2007 |
| 'Stegeman's Dreadnaught' | Large | Dark-Green | - | - | Hybrid | June into July | Stegeman, Bev & Dave | --NR-- |
| 'Stellar by Starlight' | Large | Dark-Green | Streaked | Yellow | Hybrid | July | Elslager, Ed | .2000 |
| 'Stephen' | Small | Blue/Green | - | - | Hybrid | July | Weissenberger, Henry | .1986 |
| 'Stepmom' | Medium | Yellow | - | - | Nat-Sport | July | Schwarz, Jim | --NR-- |
| 'Sterling Medallion' | Medium | Blue/Green | - | - | Hybrid | June into July | Dean, Don | .2012 |
| 'Stetson' | Medium | Med-Green | Marginal | Creamy White | TC Sport | July into August | Walters Gardens | .1997 |
| 'Steven P. Register' | Medium | Med-Green | - | - | Hybrid | July into August | Chamberlain, Steve | .2005 |
| 'Stiff Upper Lip' | Large | Blue/Green | - | - | Unknown | June into July | Asch, Stuart | .2010 |
| 'Stimulation' | Medium | Dark-Green | - | - | Hybrid | August to October | Avent, Tony | .2006 |
| 'Sting' | Medium | Dark-Green | Marginal | White | Nat-Sport | July into August | Heemskerk, Gerardus | .2011 |
| 'Stitch In Time' | Small | Yellow | Medial | Green | Nat-Sport | July | Mortko, Rob | .2004 |
| 'Stitchery' | Large | Med-Green | Streaked | Yellow | Nat-Sport | August to October | Wade, Van | --NR-- |
| 'Stones' | Large | Dark-Green | - | - | Nat-Sport | June into July | Stone, David | --NR-- |
| 'Stone's Valentine' | Medium | Yellow | - | - | Unknown | July | Stone, David & Ruh, Peter | .1989 |
| 'Stoop' | Small | Blue/Green | - | - | Unknown | - | Vincun, Rachael | --NR-- |
| 'Storm' | Medium | Blue/Green | - | - | Hybrid | August to September | Shadrack, Mike | .2011 |
| 'Stormy Lakes' | Large | Blue/Green | - | - | Hybrid | June into July | Goodale, T. | .2009 |
| 'Stormy Seas' | Large | Dark-Green | - | - | Hybrid | June into July | Zilis, Mark | .2004 |
| 'Straight Arrow' | Small | Med-Green | - | - | Nat-Sport | July into August | Malloy, Alex | --NR-- |
| 'Straight Flush' | Medium | Yellow | - | - | Nat-Sport | July | Savory, Dennis | .2004 |
| 'Stranger in the Dark' | Medium | Dark-Green | - | - | Nat-Sport | July | Fransen, Marco & Joyce | --NR-- |
| 'Stratosphere' | Large | Yellow | - | - | Nat-Sport | June | Malloy, Alex | .2001 |
| 'Strawberry Parfait' | Large | Yellow | - | - | Hybrid | August to October | Dean, Don | .2004 |
| 'Strawberry Ripple' | Large | Dark-Green | Streaked | White | Hybrid | June into July | Elslager, Ed | .2004 |
| 'Strawberry Surprise' | Medium | Blue/Green | Marginal | Yellow | Hybrid | July into August | Dean, Don | .2008 |
| 'Streaked Regal' | Giant | Light-Green | - | - | Nat-Sport | July | Lydell, Ransom & Seaver, Charles | --NR-- |
| 'Streaker Ahoy' | Giant | Dark-Green | Streaked | Yellow | Hybrid | June into July | Elslager, Ed | .2004 |
| 'Streaker Heaven' | Large | Blue/Green | Streaked | Yellow | Hybrid | June into July | Kuenster, Rod | .2009 |
| 'Streakin in Georgia' | Small | Light-Green | Streaked | Yellow | Unknown | - | Thaubald, Ed | --NR-- |
| 'Streaking Frenzy' | Large | Dark-Green | Streaked | Yellow | Hybrid | June into July | Elslager, Ed | .2004 |
| 'Streaking Party' | Medium | Yellow | Streaked | Green | Hybrid | June into July | Elslager, Ed | .2005 |
| 'Streaking Sandy' | Small | Med-Green | Streaked | Yellow | Nat-Sport | July into August | Freeman, Franc | .2012 |
| 'Streaky Streak' | Large | Med-Green | Streaked | Yellow | Hybrid | July | Elslager, Ed | .1999 |
| 'Streets of Gold' | Large | Yellow | - | - | Hybrid | July | Lysne, Rod | .2002 |
| 'Strike it Rich' | Large | Yellow | - | - | Hybrid | June into July | Ward, Dr Dick & Jane | .2014 |
| 'String Bikini' | Large | Dark-Green | Medial | Yellow | Nat-Sport | July into August | Hawes, James & Snyder, Ron | .2000 |
| 'Strip Act' | Large | Med-Green | - | - | Nat-Sport | July | Van Eechaute, Danny | --NR-- |
| 'Strip Poker' | Large | Med-Green | Marginal | Yellow | Nat-Sport | July into August | Burlingame, Nancy | .2004 |
| 'Strip Search' | Medium | Blue/Green | Marginal | Yellow | Nat-Sport | July into August | Weiss, Sharon | --NR-- |
| 'Stripped Naked' | Medium | Med-Green | Medial | White | Nat-Sport | July into August | Van Ostrand, John | .2004 |
| 'Stripper' | Large | Med-Green | Marginal | White | Nat-Sport | July into August | Klinkhamer, Luc & Van Eechaute, Danny | .2002 |
| 'Striptease' | Large | Dark-Green | Medial | White | Nat-Sport | July into August | Thompson, Rick & Criss | .1991 |
| 'Striptease Streaker' | Large | Med-Green | Streaked | Yellow | Nat-Sport | July into August | Jennings, Dave | --NR-- |
| 'Stuck in Time' | Small | Yellow | - | - | Nat-Sport | July | Fransen, Marco & Joyce | --NR-- |
| 'Substance Abuse' | Large | Med-Green | - | - | Unknown | June into July | Kuk, Bob | --NR-- |
| 'Subterranean Pool' | Medium | Blue/Green | - | - | Hybrid | August to September | Dean, Don | .1999 |
| 'Subtlety' | Small | Light-Green | Marginal | Yellow | Nat-Sport | June into July | Tower, Alan | .2003 |
| 'Sugar and Spice' | Large | Dark-Green | Marginal | Yellow | TC Sport | August | Zilis, Mark | .2003 |
| 'Sugar and Spice Supreme' | Large | Med-Green | Streaked | White | Nat-Sport | August | Unknown | --NR-- |
| 'Sugar Pie' | Small | Med-Green | Marginal | White | Nat-Sport | August | Snyder, Ron | .1998 |
| 'Sulfur Butterfly' | Medium | Yellow-Gold | | | Unknown | June | Goodwin, Randy | .2019 |
| 'Suliban' | Medium | Med-Green | Streaked | Yellow | Nat-Sport | July into August | Van Eechaute, Danny | .2013 |
| 'Sultana' | Small | Blue/Green | Marginal | Yellow | TC Sport | June | Zumbar, Wm | .1988 |
| 'Sultan's Smoke' | Medium | Blue/Green | Marginal | Yellow | Hybrid | June into July | Elslager, Ed | .2001 |
| 'Sum and Substance' | Giant | Light-Green | - | - | Unknown | July into August | Shaw, Florence & Aden, Paul | .1980 |
| 'Sum and Subtle' | Large | Light-Green | Marginal | Green | TC Sport | July into August | Zilis, Mark | .2009 |
| 'Sum Cup-o-Joe' | Large | Med-Green | Marginal | White | Nat-Sport | June into July | Elslager, Ed | .2000 |
| 'Sum it Up' | Giant | Med-Green | Marginal | Yellow | TC Sport | July into August | Zilis, Mark | .1999 |
| 'Sum Like It Hot' | Large | Light-Green | Streaked | Yellow | Nat-Sport | July into August | Elslager, Ed | .2003 |
| 'Sum More Magic' | Large | Med-Green | - | - | Hybrid | June into July | Doggett, Sally | .2006 |
| 'Sum Of All' | Giant | Blue/Green | Marginal | Green | TC Sport | July into August | Zilis, Mark | .2000 |
| 'Sum Piecrust' | Giant | Light-Green | - | - | Nat-Sport | July into August | Elslager, Ed | .1999 |
| 'Sum Ringer' | Giant | Med-Green | Marginal | Yellow | Nat-Sport | July | Green Mountain Hosta | --NR-- |
| 'Sum Streaker' | Giant | Yellow | Streaked | White | Nat-Sport | August | Elslager, Ed | .2005 |
| 'Sum Sunfish' | Giant | Light-Green | Medial | Yellow | Nat-Sport | July into August | Sauve, Criste | .2004 |
| 'Sum Thing Else' | Large | Dark-Green | - | - | Nat-Sport | July into August | Unknown | --NR-- |
| 'Sum Total' | Giant | Dark-Green | Marginal | Yellow | Nat-Sport | July into August | Pedrick, Sandra | .1991 |
| 'Sum Treasure' | Giant | Yellow | Marginal | Green | Nat-Sport | July into August | Unknown | --NR-- |
| 'Sum Upper Crust' | Giant | Light-Green | Streaked | White | Nat-Sport | July into August | Elslager, Ed | .2004 |
| 'Sum Whopper' | Large | Dark-Green | Marginal | Yellow | Nat-Sport | July into August | Unknown | --NR-- |
| 'Sum Zero' | Large | Dark-Green | - | - | Nat-Sport | July into August | Solberg, Robert | .2011 |
| 'Summa Cum Laude' | Giant | Light-Green | Marginal | Yellow | Nat-Sport | July into August | Lysne, Rod | .2006 |
| 'Summer Breeze' | Large | Dark-Green | Marginal | Yellow | TC Sport | July | Zilis, Mark | .1999 |
| 'Summer Concerto' | Medium | Light-Green | Medial | White | Nat-Sport | July | Ziarek, Ken | --NR-- |
| 'Summer Dress' | Large | Light-Green | - | - | Hybrid | July | Syre-Herz, Ursula | .1990 |
| 'Summer Fest' | Medium | Med-Green | Streaked | Yellow | Nat-Sport | July | Unknown | --NR-- |
| 'Summer Fragrance' | Large | Med-Green | Marginal | White | Hybrid | July into August | Vaughn, Kevin | .1983 |
| 'Summer Fragrance Green' | Large | Med-Green | - | - | Nat-Sport | August to September | Wade, Van | --NR-- |
| 'Summer Gift' | Large | Dark-Green | - | - | Unknown | - | Unknown | --NR-- |
| 'Summer Gold' | Medium | Med-Green | - | - | Unknown | July into August | Hamblin, Nesmith, Philips & Ruh, Peter | .1998 |
| 'Summer in Georgia' | Large | Blue/Green | Marginal | Yellow | Unknown | August | Anderson, Jim | --NR-- |
| 'Summer Love' | Medium | Yellow | - | - | Nat-Sport | June into July | Zilis, Mark | .2010 |
| 'Summer Lovin' | Medium | Dark-Green | Marginal | Yellow | TC Sport | July | Zilis, Mark | .2004 |
| 'Summer Music' | Medium | Med-Green | Medial | White | Nat-Sport | July | Klehm, Roy | .1998 |
| 'Summer Music Gold' | Medium | Yellow | - | - | Nat-Sport | July | Unknown | --NR-- |
| 'Summer Music Supreme' | Medium | Med-Green | Streaked | White | Nat-Sport | July | Stark, Gunther | --NR-- |
| 'Summer Olympics' | Large | Yellow | - | - | TC Sport | July | Zilis, Mark | .2004 |
| 'Summer Rapture' | Medium | Yellow | - | - | Hybrid | June into July | Tylinski, Stan | .2003 |
| 'Summer Snow' | Large | Blue/Green | Marginal | White | Hybrid | June into July | Cannon, Lillian | .1978 |
| 'Summer Solstice' | Large | Med-Green | Marginal | Yellow | Nat-Sport | July | Meyer, Bill | --NR-- |
| 'Summer Squall' | Medium | Blue/Green | - | - | Hybrid | July | Solberg, Robert | .2007 |
| 'Summer Vacation' | Medium | Dark-Green | - | - | TC Sport | July | Zilis, Mark | --NR-- |
| 'Summer Warrior' | Large | Yellow | - | - | Unknown | July | Goodwin, Randy | .2000 |
| 'Summer Wind' | Large | Dark-Green | Marginal | White | Hybrid | July into August | Dalton, Jim & Meg | .2012 |
| 'Summers' Gift' | Medium | Dark-Green | - | - | Unknown | - | Summers, Alex | --NR-- |
| 'Sumsational' | Large | Dark-Green | Medial | Yellow | Nat-Sport | July into August | Zilis, Mark | .2010 |
| 'Sun Banner' | Large | Dark-Green | Marginal | Yellow | Nat-Sport | July | O'Harra, Russ | .1999 |
| 'Sun Bouquet' | Medium | Yellow | - | - | Nat-Sport | August | van den Top, Jan | --NR-- |
| 'Sun Chaser' | Large | Dark-Green | Streaked | Yellow | Hybrid | July into August | Elslager, Ed | .2004 |
| 'Sun Dogs' | Giant | Light-Green | Marginal | Yellow | Nat-Sport | July | Meyer, Gerry & Jean | .2018 |
| 'Sun Drop' | Medium | Med-Green | Marginal | Yellow | Nat-Sport | July | Banyai, Bruce | .1999 |
| 'Sun Glow' | Large | Yellow | - | - | Hybrid | June | Aden, Paul | .1974 |
| 'Sun Mouse' | Small | Yellow | - | - | Nat-Sport | June into July | Avent, Tony | --NR-- |
| 'Sun Power' | Large | Yellow | - | - | Hybrid | July | Aden, Paul | .1986 |
| 'Sun Safari' | Large | Yellow | - | - | Unknown | - | Goodwin, Randy | .2014 |
| 'Sun Shadows' | Small | Light-Green | Streaked | Green | Nat-Sport | July | Meyer, Bill | --NR-- |
| 'Sun Shower' | Medium | Yellow | - | - | Hybrid | July | Solberg, Robert | .2007 |
| 'Sun Worshiper' | Medium | Yellow | - | - | Hybrid | July into August | Solberg, Robert | .2006 |
| 'Sunami' | Large | Dark-Green | - | - | Hybrid | July | Soules, Clarence | .1990 |
| 'Sundae Mix' | Small | Med-Green | Streaked | White | Nat-Sport | August to September | Philips, Hugo | --NR-- |
| 'Sundance' | Large | Dark-Green | Marginal | White | TC Sport | - | Walters Gardens | .1984 |
| 'Sundance Streaked' | Large | Dark-Green | Streaked | Yellow | Nat-Sport | July | Unknown | --NR-- |
| SUNDANCER | Medium | Med-Green | Marginal | White | Unknown | - | Berbee, Leo | .2004 |
| 'Sunday Morning' | Medium | Yellow | - | - | Hybrid | June into July | Dalton, Jim & Meg | .2012 |
| 'Sundowner' | Giant | Blue/Green | - | - | Nat-Sport | July into August | Elslager, Ed | .2005 |
| 'Sunfish Bett' | Large | Light-Green | Marginal | Green | Nat-Sport | July | Sauve, Criste | .2004 |
| 'Sunfish Stripe' | Medium | Med-Green | Medial | Yellow | Nat-Sport | July into August | Sauve, Criste | .2004 |
| 'SUNHOSTA | Large | Med-Green | Marginal | White | Nat-Sport | August | Chodyla, Bernard | --NR-- |
| 'Sunny Disposition' | Medium | Light-Green | - | - | Hybrid | July | Nyikos, Frank | .2001 |
| 'Sunny Halcyon' | Medium | Yellow | - | - | Nat-Sport | July into August | Heemskerk, Gerardus | --NR-- |
| 'Sunny Side Up' | Small | Yellow | - | - | Hybrid | July into August | Avent, Tony | .2007 |
| 'Sunny Smiles' | Large | Light-Green | Marginal | White | Hybrid | July | Tompkins, Chet & Ruh, Peter & Jean | .2001 |
| 'Sunrise' | Medium | Dark-Green | Marginal | Yellow | Nat-Sport | July into August | Goodwin, Randy | .2018 |
| 'Sun's Glory' | Giant | Med-Green | - | - | Nat-Sport | July | Vaughn, Kevin | --NR-- |
| 'Sunset Strip' | Giant | Blue/Green | Streaked | Yellow | Unknown | July into August | Elslager, Ed | .2005 |
| 'Sunshine Floozie' | Medium | Yellow-Gold | - | - | Unknown | June into July | Avent, Tony | --NR-- |
| 'Sunshine Glory' | Large | Med-Green | Marginal | White | Hybrid | July | Vaughn, Kevin | .1982 |
| 'Sunspray' | Large | Med-Green | Marginal | White | Nat-Sport | July into August | Snyder, Ron | .2002 |
| 'Super Ego' | Giant | Dark-Green | Streaked | White | Nat-Sport | June into July | Skaggs, Virginia & Brian | --NR-- |
| 'Super Sagae' | Large | Dark-Green | Marginal | White | Nat-Sport | July into August | Dautzenberg, Theo & Marie-José | --NR-- |
| 'Super Samson' | Giant | Dark-Green | Marginal | Green | Nat-Sport | July into August | Kuntz, J. | .2018 |
| 'Super Silver' | Medium | Blue/Green | - | - | Unknown | June into July | Ross, Henry | --NR-- |
| 'Super Star' | Large | Blue/Green | Streaked | Yellow | Hybrid | July | Elslager, Ed | .2000 |
| 'Super Streak' | Medium | Blue/Green | Streaked | Yellow | Unknown | August | Vaughn, Kevin | .1982 |
| 'Supersonic' | Giant | Dark-Green | Marginal | Yellow | Nat-Sport | July into August | Anderson, Kenneth & Luke | .1996 |
| 'Supreme Court Justice' | Giant | Dark-Green | Marginal | Yellow | Hybrid | June into July | Gage, Terry | .2015 |
| 'Surf and Turf' | Large | Dark-Green | - | - | Hybrid | July | Elslager, Ed | .1999 |
| 'Surf's Up' | Medium | Yellow | - | - | TC Sport | July into August | Zilis, Mark | .2009 |
| 'Surprise' | Medium | Med-Green | - | - | Unknown | August to October | Williams, Frances & AHS | .1986 |
| 'Susanna' | Medium | Yellow | - | - | Unknown | - | Kósa, Lehel | --NR-- |
| 'Susie Chamberlain' | Giant | Med-Green | - | - | Unknown | July into August | Chamberlain, Steve | .2006 |
| 'Sutter's Mill' | Large | Yellow | - | - | Hybrid | June into July | Balitewicz, Bob | --NR-- |
| 'Suzanne' | Medium | Dark-Green | Marginal | White | Unknown | - | Ruh, Peter | --NR-- |
| 'Suzy Merle' | Giant | Dark-Green | - | - | Unknown | June into July | Simpers, Lucille | --NR-- |
| 'Swan Lake' | Large | Blue/Green | - | - | Hybrid | August | Sugita, Hajime & Ruh, Peter | .1998 |
| 'Swan Lane' | Small | Blue/Green | - | - | Unknown | June into July | Van Zyverden, Inc. | --NR-- |
| 'Swan Song' | Miniature | Dark-Green | Medial | White | Unknown | July | Goodwin, Randy | .2019 |
| 'Sweet and Low' | Miniature | Blue/Green | Streaked | Yellow | Hybrid | July into August | Elslager, Ed | .2004 |
| 'Sweet Blonde Babe' | Small | Yellow | Marginal | White | Nat-Sport | August | van den Top, Jan | --NR-- |
| 'Sweet Bo Peep' | Medium | Dark-Green | - | - | Hybrid | August | Benedict, Dr R. (Herb) & Walek, Kevin | .2009 |
| 'Sweet Bouquet' | Large | Light-Green | Marginal | Yellow | Nat-Sport | August to September | Fransen, Marco & Joyce | --NR-- |
| 'Sweet Diversion' | Medium | Blue/Green | Marginal | White | Hybrid | July | Johnson, Greg | .2004 |
| 'Sweet Dream' | Large | Light-Green | Marginal | White | Nat-Sport | August | van den Top, Jan | --NR-- |
| 'Sweet Dreams' | Small | Med-Green | Medial | White | TC Sport | July | Zilis, Mark & Walek, Kevin | .2009 |
| 'Sweet Gold' | Large | Yellow | - | - | Nat-Sport | August to September | van den Top, Jan | --NR-- |
| 'Sweet Home Chicago' | Medium | Yellow | Marginal | Blue-Green | TC Sport | July | Ruh, Peter | .2002 |
| 'Sweet Home Chicago Streaked' | Medium | Dark-Green | Streaked | White | Nat-Sport | July | Miller, Jeff | --NR-- |
| 'Sweet Innocence' | Medium | Med-Green | Marginal | White | Nat-Sport | August | Hansen, Hans | --NR-- |
| 'Sweet Jill' | Small | Med-Green | Medial | White | Nat-Sport | August | Benedict, Dr Ralph (Herb) | .1986 |
| 'Sweet Jill Supreme' | Medium | Med-Green | Streaked | White | Nat-Sport | August | Schwarz, Jim | --NR-- |
| 'Sweet Marjorie' | Large | Yellow | - | - | Hybrid | August to October | Benedict, Dr Ralph (Herb) | .1983 |
| 'Sweet Pea' | Medium | Med-Green | - | - | Hybrid | August | Benedict, Dr Ralph (Herb) | --NR-- |
| 'Sweet Serenity' | Large | Med-Green | Marginal | Yellow | TC Sport | August | Zilis, Mark | .1990 |
| 'Sweet Standard' | Large | Med-Green | Marginal | White | TC Sport | August to October | Zilis, Mark | .1984 |
| 'Sweet Susan' | Large | Med-Green | - | - | Hybrid | August | Williams, Frances & Williams, Connie | .1986 |
| 'Sweet Susan Streaked' | Medium | Med-Green | Streaked | White | Nat-Sport | - | Unknown | --NR-- |
| 'Sweet Susan Variegated' | Medium | Med-Green | Marginal | Light Green | Nat-Sport | - | Summers, Alex | --NR-- |
| 'Sweet William' | Large | Dark-Green | Streaked | White | Hybrid | July | Asch, Stuart | .2004 |
| 'Sweetie' | Medium | Med-Green | Marginal | Creamy White | Hybrid | August | Aden, Paul | .1988 |
| 'Sweetness' | Large | Med-Green | - | - | TC Sport | August to September | Zilis, Mark | .2003 |
| 'Swirling Hearts' | Large | Dark-Green | - | - | Hybrid | July | Ruh, Peter | .2003 |
| 'Swirling Pebbles' | Medium | Dark-Green | Medial | White | Nat-Sport | - | Unknown | --NR-- |
| 'Swizzle Sticks' | Medium | Med-Green | - | - | Hybrid | August | Herold, Roy & Walek, Kevin | .2009 |
| 'Symphony in Blue' | Medium | Blue/Green | | | Hybrid | September | Stegeman, Bev & Dave | .2019 |
| 'Syncopated Harmony' | Medium | Med-Green | Marginal | Yellow | Hybrid | August | Dean, Don | .2018 |
| 'Synergy' | Medium | Med-Green | Marginal | Yellow | Nat-Sport | July into August | Zilis, Mark | .2012 |
|