| Cultivar | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
| 'Alex Summers' | Large | Blue/Green | Marginal | Yellow | Nat-Sport | Pale-Lavender | June into July | Santa Lucia, Vic | .1989 |
| 'Endless Summer' | Medium | Light-Green | - | - | Nat-Sport | Pale-Lavender | July into August | Zilis, Mark & Ruh, Peter | .2006 |
| 'Essence of Summer' | Large | Blue/Green | Medial | Yellow | Nat-Sport | Pure-White | July into August | Fransen, Marco & van den Top & Van Eechaute, Danny | .2004 |
| 'Fragrant Summer' | - | - | - | - | Duplicate | - | - | Duplicate Name | --NR-- |
| 'Gene Summers' | Medium | Dark-Green | Streaked | Speckles | Hybrid | Pale-Lavender | July | Aden, Paul | .1978 |
| 'Green Summer Fragrance' | Large | Med-Green | - | - | Nat-Sport | Pale-Lavender | August to September | Wade, Van | --NR-- |
| 'Green Summer Music' | Medium | Med-Green | - | - | Nat-Sport | Pale-Lavender | July | Unknown | --NR-- |
| 'Indian Summer' | Medium | Med-Green | - | - | Unknown | - | - | Summers, Alex | --NR-- |
| 'Indian Summer' | Small | Yellow | Marginal | White | Nat-Sport | Med-Lavender | July into August | Goodwin, Randy | .2006 |
| 'Jipson Place Summer Solstice' | Giant | Yellow | - | - | Unknown | Pale-Lavender | June into July | Butler, Dick & Jamie | .2016 |
| 'King's Summer Surprise' | Medium | Dark-Green | Marginal | Yellow | Unknown | - | - | King, Herb | --NR-- |
| 'Kiwi Summer Haze' | Small | Blue/Green | - | - | Unknown | Pale-Lavender | July into August | Sligh, Barry | --NR-- |
| 'Midsummer Night's Green' | Large | Dark-Green | - | - | Hybrid | Med-Lavender | July into August | Goodwin, Randy | .2006 |
| 'PeeDee Summerdream' | - | Yellow | - | - | Unknown | - | - | Syre-Herz, Ursula | --NR-- |
| 'Rosedale Melody of Summer' | Medium | Dark-Green | Medial | White | Nat-Sport | Med-Lavender | July | Hadrava, Jerry | --NR-- |
| 'Rosedale Summer Melody' | - | - | - | - | Duplicate | - | - | Duplicate Name | --NR-- |
| 'Sibling to Summer Fragrance' | Large | - | - | - | Unknown | Pale-Lavender | August | Vaughn, Kevin | --NR-- |
| 'Summer Breeze' | Large | Dark-Green | Marginal | Yellow | TC Sport | Pale-Lavender | July | Zilis, Mark | .1999 |
| 'Summer Concerto' | Medium | Light-Green | Medial | White | Nat-Sport | Pale-Lavender | July | Ziarek, Ken | --NR-- |
| 'Summer Delight' | - | - | - | - | Unknown | - | - | Unknown | --NR-- |
| 'Summer Dress' | Large | Light-Green | - | - | Hybrid | Med-Lavender | July | Syre-Herz, Ursula | .1990 |
| 'Summer Fest' | Medium | Med-Green | Streaked | Yellow | Nat-Sport | Pale-Lavender | July | Unknown | --NR-- |
| 'Summer Fragrance' | Large | Med-Green | Marginal | White | Hybrid | Pale-Lavender | July into August | Vaughn, Kevin | .1983 |
| 'Summer Fragrance Green' | Large | Med-Green | - | - | Nat-Sport | Pale-Lavender | August to September | Wade, Van | --NR-- |
| 'Summer Gift' | Large | Dark-Green | - | - | Unknown | Pale-Lavender | - | Unknown | --NR-- |
| 'Summer Gold' | Medium | Med-Green | - | - | Unknown | Pale-Lavender | July into August | Hamblin, Nesmith, Philips & Ruh, Peter | .1998 |
| 'Summer Haze' | Small | Blue/Green | - | - | Unknown | - | - | Sligh, Barry | --NR-- |
| 'Summer in Georgia' | Large | Blue/Green | Marginal | Yellow | Unknown | Med-Lavender | August | Anderson, Jim | --NR-- |
| 'Summer Joy' | Large | Blue/Green | Medial | White | Nat-Sport | Pure-White | - | Klehm, Roy | .1998 |
| 'Summer Love' | Medium | Yellow | - | - | Nat-Sport | Pale-Lavender | June into July | Zilis, Mark | .2010 |
| 'Summer Lovin' | Medium | Dark-Green | Marginal | Yellow | TC Sport | Pale-Lavender | July | Zilis, Mark | .2004 |
| 'Summer Magic' | Large | Med-Green | Medial | White | Unknown | - | - | Unknown | --NR-- |
| 'Summer Melody' | Large | Dark-Green | Marginal | Yellow | Hybrid | - | - | Smith, Roger | --NR-- |
| 'Summer Music' | Medium | Med-Green | Medial | White | Nat-Sport | Pale-Lavender | July | Klehm, Roy | .1998 |
| 'Summer Music Gold' | Medium | Yellow | - | - | Nat-Sport | Pale-Lavender | July | Unknown | --NR-- |
| 'Summer Music Streaked' | - | - | - | - | Duplicate | - | - | Duplicate Name | --NR-- |
| 'Summer Music Supreme' | Medium | Med-Green | Streaked | White | Nat-Sport | Pale-Lavender | July | Stark, Gunther | --NR-- |
| 'Summer Olympics' | Large | Yellow | - | - | TC Sport | Pale-Lavender | July | Zilis, Mark | .2004 |
| 'Summer Palace' | Large | Light-Green | Marginal | Yellow | Hybrid | - | June into July | Ward, Dr Dick & Jane | .2010 |
| 'Summer Rainbow' | Large | Dark-Green | Marginal | White | Nat-Sport | - | July into August | Bowe, Dave & Wilson, Chris | .2010 |
| 'Summer Rapture' | Medium | Yellow | - | - | Hybrid | Pale-Lavender | June into July | Tylinski, Stan | .2003 |
| 'Summer Ripples' | Small | Med-Green | Marginal | White | Hybrid | - | - | Avent, Tony & Walek, Kevin | .2009 |
| 'Summer Serenade' | Large | Yellow | Marginal | Dark Green | Nat-Sport | Near-White | June | Klehm, Roy | .1998 |
| 'Summer Showcase' | Large | Light-Green | Marginal | Yellow | Unknown | - | - | Goodwin, Randy | .2009 |
| 'Summer Snow' | Large | Blue/Green | Marginal | White | Hybrid | Pale-Lavender | June into July | Cannon, Lillian | .1978 |
| 'Summer Solstice' | Large | Med-Green | Marginal | Yellow | Nat-Sport | Pale-Lavender | July | Meyer, Bill | --NR-- |
| 'Summer Squall' | Medium | Blue/Green | - | - | Hybrid | Pale-Lavender | July | Solberg, Robert | .2007 |
| 'Summer Storm' | Medium | Dark-Green | Marginal | Light Green | Nat-Sport | - | - | Zilis, Mark | .2012 |
| 'Summer Sunrise' | - | Light-Green | Marginal | White | Unknown | - | - | van den Top, Jan | --NR-- |
| 'Summer Time' | Medium | Dark-Green | Marginal | White | Unknown | - | - | Krul, Nancy & Belle Gardens | --NR-- |
| 'Summer Vacation' | Medium | Dark-Green | - | - | TC Sport | Pale-Lavender | July | Zilis, Mark | --NR-- |
| 'Summer Warrior' | Large | Yellow | - | - | Unknown | Pale-Lavender | July | Goodwin, Randy | .2000 |
| 'Summer Wedding' | Medium | Yellow | - | - | Unknown | Pure-White | - | Nyikos, Frank | .2009 |
| 'Summer Wind' | Large | Dark-Green | Marginal | White | Hybrid | Med-Lavender | July into August | Dalton, Jim & Meg | .2012 |
| 'Summers' Gift' | Medium | Dark-Green | - | - | Unknown | Med-Lavender | - | Summers, Alex | --NR-- |
| 'Summer's Krossa' | - | - | - | - | Duplicate | - | - | Duplicate Name | --NR-- |
| 'Summers No. 00' | - | - | - | - | Duplicate | - | - | Summers, Alex | --NR-- |
| 'Summers No. 1' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 100' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 101' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 104' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 108' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 111' | | | | | Duplicate | | | Summers, Alex | |
| 'Summers No. 115' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 118' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 125' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 140' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 143' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 145' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 146' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 15' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 15' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 151' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 158' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 17' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 170' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 182' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 183' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 184' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 185' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 189' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 196' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 197' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 20' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 20' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 21' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 210' | - | - | | | Duplicate | - | - | Epstein, Harold & Summers, Alex | |
| 'Summers No. 23' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 239' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 246' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 27' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 280' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 282' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 29' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 298' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 30' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 304' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 317' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 32' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 323' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 324' | | | | | Duplicate | | | Summers, Alex | |
| 'Summers No. 331' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 332' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 334' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 335' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 347' | | | | | Duplicate | | | Summers, Alex | |
| 'Summers No. 355' | | | | | Duplicate | | | Craig, Jack & Summers, Alex | |
| 'Summers No. 371-375' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 378' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 392' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 395' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 411' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 412' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 43' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 432' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 445' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 448' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 45' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 450' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 46' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 466' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 472' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 486' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 50' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 51' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 526' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 53' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 575' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 61' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 69' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 73' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 75' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 78' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 80' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 86' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 87' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 92' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No. 98' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summers No.110' | - | - | | | Duplicate | - | - | Summers, Alex | |
| 'Summertime' | - | - | - | - | Unknown | - | - | Unknown | --NR-- |
|