| Cultivar | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
| 'Academy Yellow Vuvuzela' | Large | Yellow | | | Unknown | Pale-Lavender | July | Chamberlain, Steve | .2015 |
| 'Aztec Yellow' | | | | | Unknown | | | Unknown | --NR-- |
| 'Bohemia Yellow Corvette' | Medium | Yellow | | | Hybrid | Pale-Lavender | July into August | Mirka, Vladimir | .2017 |
| 'Butter Yellow' | Large | Yellow | | | Unknown | Pale-Lavender | June into July | Vaughn, Kevin | .1982 |
| 'Cardwell Yellow' | Large | Yellow | | | Unknown | Near-White | June into July | Krossa, Gus & Ruh, Peter | .1981 |
| 'Chesieres Yellow Masquerade' | Small | Yellow | | | Nat-Sport | Light-Purple | June into July | Hirsbrunner, Liselotte | --NR-- |
| 'Color Me Yellow' | Medium | | | | Nat-Sport | | | Freeman, Franc & Sally | .2010 |
| 'Curious Yellow' | Small | Yellow | | | Unknown | Light-Purple | | Livingston, Ron | --NR-- |
| 'Fried Yellow Squash' | Medium | Med-Green | Medial | Yellow | TC Sport | Light-Purple | July into August | Anderson, Jim | --NR-- |
| 'Fried Yellow Tomatoes' | Large | Yellow | | | Nat-Sport | Pale-Lavender | August to September | van den Top, Jan | --NR-- |
| 'Frisian Yellow Waves' | Medium | Yellow | | | Hybrid | Med-Lavender | | Aukema, Bate | --NR-- |
| 'Giantland Yellow Dome' | | Yellow | | | Hybrid | | | Miller, Jeff | --NR-- |
| 'Groovy Yellow' | Medium | Yellow | | | Unknown | Med-Lavender | July into August | Kruer, George | .2009 |
| 'John Deere Green and Yellow' | Medium | Dark-Green | Marginal | Yellow | Unknown | | August to September | Freeman, Franc | .2010 |
| 'Kiwi Acid Yellow' | Medium | Yellow | | | Unknown | | | Sligh, Barry | --NR-- |
| 'Krossa Regal Yellow Variegation' | Giant | Blue/Green | Streaked | Yellow | TC Sport | Med-Lavender | July into August | Ruh, Peter | --NR-- |
| 'Lakeside Yellow Pages' | | Yellow | | | Unknown | | | Chastain, Mary | --NR-- |
| 'MALCA (YELLOW SPOT)' | | | | | Unknown | | | Unknown | --NR-- |
| 'Maui Yellow Kitten' | Large | Yellow | | | Hybrid | | | Vaughn, William | --NR-- |
| 'Mellow Yellow' | Large | Yellow | | | Unknown | | | Benedict, Dr Ralph (Herb) | --NR-- |
| 'Needham Yellow' | | Yellow | | | Unknown | | | Seaver, Mildred | --NR-- |
| 'Rokuju Yellow' | | Yellow | | | Unknown | | | Ellerbroek, Paul & Stark, Gunther | --NR-- |
| 'Rosedale Canary Yellow' | | - | - | - | Duplicate | - | - | Duplicate Name | |
| 'Rosedale Yellow Brick Road' | Medium | Med-Green | Streaked | White | Hybrid | Near-White | July | Hadrava, Jerry | .1999 |
| 'Screaming Yellow Zonkers' | Large | Yellow | Streaked | White | Hybrid | | | Goodenough, Rick | --NR-- |
| 'Sea Plain Yellow' | | Yellow | | | Unknown | | | Seaver, Mildred | --NR-- |
| 'Sea Yellow Gold' | | | | | Unknown | | | Seaver, Mildred | --NR-- |
| 'Sea Yellow Piecrust' | | | | | Unknown | | | Seaver, Mildred | --NR-- |
| 'Sea Yellow Sunrise' | Medium | Yellow | | | Nat-Sport | Pale-Lavender | July | Seaver, Mildred | .1985 |
| 'Sponge Bob Yellow' | | Yellow | | | Unknown | | | Goodenough, Rick | --NR-- |
| 'Starker Yellow Leaf' | Large | Dark-Green | Medial | Yellow | Unknown | Pale-Lavender | July | Starker, Carl & Ruh, Peter | .1989 |
| 'Stone's Yellow Leaf' | Medium | Light-Green | | | Unknown | | | Stone, David & Ruh, Peter & Jean | .2004 |
| 'Tremont Back to Yellow' | Large | Yellow | | | Unknown | | | Livingston, Ron | --NR-- |
| 'Tremont Yellow Glory' | Large | Blue/Green | | | Unknown | | | Livingston, Ron | --NR-- |
| 'Tremont Yellow Pebbles' | Giant | Blue/Green | Streaked | Yellow | Unknown | | | Livingston, Ron | --NR-- |
| 'Valley's Yellow Fellow' | Medium | Yellow | | | Unknown | | | Linneman, Jeroen | --NR-- |
| 'Valley's Yellow Moon' | | Yellow | | | Hybrid | | | Linneman, Jeroen | --NR-- |
| 'Viette's Yellow Edge' | Medium | Med-Green | Marginal | Yellow | Unknown | Pale-Lavender | July into August | Viette, Andre & AHS | .1986 |
| 'Wendy's Yellow' | Medium | Blue/Green | Marginal | Creamy White | Unknown | - | - | Unknown | --NR-- |
| 'Yarden Yellow Snow' | Medium | Yellow | | | Hybrid | | July into August | White, Brian | .2008 |
| YELLOW BAND | | | | | TRADEMARK | | | TRADENAME | |
| 'Yellow Band' | | | | | Duplicate | | | Duplicate Name | |
| 'Yellow Belly' | | Yellow | | | Unknown | | | Jones, Leonard | --NR-- |
| 'Yellow Bird' | Medium | Yellow | | | Hybrid | Pale-Lavender | August | Benedict, Dr Ralph (Herb) | .1991 |
| 'Yellow Blade' | Medium | Yellow | | | Nat-Sport | | July into August | Benedict, Dr R. (Herb) & Walek, Kevin | .2009 |
| 'Yellow Boa' | Medium | Light-Green | | | Hybrid | Light-Purple | July | O'Harra, Russ | .1991 |
| 'Yellow Bonkers' | Medium | Yellow | | | Unknown | | | Ziarek, Ken | --NR-- |
| 'Yellow Boy' | | | | | Duplicate | | | Duplicate Name | |
| 'Yellow Brick Road' | Medium | Med-Green | Marginal | White | Unknown | Light-Purple | July | Tompkins, Chet | --NR-- |
| 'Yellow Brick Road' | | | | | Unknown | | | Goodwin, Randy | --NR-- |
| 'Yellow Comet' | Medium | Yellow | | | Hybrid | Light-Purple | June into July | Graves, Butch | .2008 |
| 'Yellow Corduroys' | Medium | Light-Green | Marginal | Yellow | Unknown | | June into July | Goodwin, Randy | .2016 |
| 'Yellow Dog' | Large | Yellow | | | Unknown | Pale-Lavender | June into July | Hicks, Gerry | .2017 |
| 'Yellow Dream' | | | | | Unknown | | | Unknown | --NR-- |
| 'Yellow Duckling' | Miniature | Yellow | | | Unknown | | | Unknown | --NR-- |
| 'Yellow Edge' | | - | - | - | Duplicate | - | - | Duplicate Name | |
| 'Yellow Emperor' | Large | Yellow | | | Hybrid | Near-White | June into July | Savory, Robert | .1987 |
| 'Yellow Emperor Han Wu Di' | | | | | Duplicate | | | Duplicate Name | |
| 'Yellow Emperor Standard' | | | | | Duplicate | | | Duplicate Name | |
| 'Yellow Eyes' | Small | Yellow | | | Nat-Sport | Light-Purple | July | Ruh, Peter | .1999 |
| 'Yellow Fever' | Medium | Yellow | | | Hybrid | Near-White | July | Goodwin, Randy | .2009 |
| 'Yellow Flame' | Medium | Med-Green | Medial | Yellow | Nat-Sport | Deep-Purple | July | Hawes, James | .1999 |
| 'Yellow Flash' | Giant | Light-Green | Marginal | Yellow | Nat-Sport | Pale-Lavender | July into August | Ruh, Peter | .1997 |
| 'Yellow Heron' | Medium | Yellow | | | Unknown | | | Owens, Clarence | --NR-- |
| 'Yellow High' | Large | Yellow | | | Unknown | | | Owens, Clarence | .1990 |
| 'Yellow Highness' | Large | Yellow | | | Hybrid | | | Owens, Clarence | .1990 |
| 'Yellow Imperial Banner' | Large | Yellow | | | Unknown | | | Unknown | --NR-- |
| 'Yellow in October' | | Med-Green | | | Unknown | | | Wade, Van | --NR-- |
| 'Yellow Jacket' | Small | Med-Green | Marginal | Yellow | Nat-Sport | Light-Purple | June into July | Zilis, Mark & Ruh, Peter | .1998 |
| 'Yellow Kid' | Small | Yellow | | | Hybrid | | | Malloy, Alex | --NR-- |
| 'Yellow Ledbetter' | Large | Yellow | | | Unknown | Med-Lavender | | Sanford, Matt | --NR-- |
| 'Yellow Lollipop' | Medium | Yellow | | | Unknown | | | Hawes, James | --NR-- |
| 'Yellow Moon Rising' | Large | Yellow | | | Unknown | | | Ziarek, Ken | --NR-- |
| 'Yellow Needle' | Miniature | Yellow | | | Unknown | | | Livingston, Ron | --NR-- |
| 'Yellow Plum' | | | | | Duplicate | | | Duplicate Name | |
| 'Yellow Polka Dot Bikini' | Large | Dark-Green | Marginal | Yellow | Nat-Sport | Pale-Lavender | July into August | Jones, Leonard | .2005 |
| 'Yellow Prize' | Small | Yellow | | | Hybrid | | | Kuenster, Rod | .2008 |
| 'Yellow Ribbons' | Small | Yellow | | | Nat-Sport | Med-Lavender | July | Engel, Karen | .1999 |
| 'Yellow River' | Medium | Med-Green | Marginal | Yellow | Unknown | Near-White | July | Smith, Eric & Ruh, Peter | .1993 |
| 'Yellow Ruffles' | Large | Yellow | | | Unknown | | | Livingston, Ron | --NR-- |
| 'Yellow Smiles' | Small | Yellow | | | Unknown | Med-Lavender | | Livingston, Ron | --NR-- |
| 'Yellow Snow' | Medium | Light-Green | Marginal | Yellow | Unknown | | | Janssen, Bill | --NR-- |
| 'Yellow Splash' | Medium | Dark-Green | Streaked | Creamy White | Hybrid | Deep-Purple | July into August | Aden, Paul | .1976 |
| 'Yellow Splash Edge' | | | | | Duplicate | | | Duplicate Name | |
| 'Yellow Splash Rim' | Medium | Med-Green | Marginal | Creamy White | Nat-Sport | Light-Purple | July into August | AHS | .1986 |
| 'Yellow Splashed Edge' | Small | Med-Green | Marginal | Yellow | Unknown | | | Ruh, Peter | --NR-- |
| 'Yellow Spot' | Medium | Yellow | | | Nat-Sport | Light-Purple | July | South Africa | --NR-- |
| 'Yellow Spring' | Medium | Yellow | | | Unknown | | | Plater-Zyberk, Maria | --NR-- |
| 'Yellow Strike' | | Yellow | | | Unknown | | | Unknown | --NR-- |
| 'Yellow Submarine' | Small | Yellow | | | Unknown | Light-Purple | August | O'Harra, Russ & Walek, Kevin | .2009 |
| 'Yellow Surprise' | Medium | Yellow | | | Hybrid | | | Fisher, Eunice V. & Hensen, Karel.J.W. | .1983 |
| 'Yellow Swoosh' | Large | Yellow | | | Unknown | | | Livingston, Ron | --NR-- |
| 'Yellow Tears' | Small | Yellow | | | Hybrid | | | Zonneveld, Ben | --NR-- |
| 'Yellow Tiara' | | | | | Unknown | | | Unknown | --NR-- |
| 'Yellow Urchin' | Medium | Light-Green | | | Unknown | Med-Lavender | | Vaillancourt, Caryl | --NR-- |
| 'Yellow Waves' | Small | Yellow | | | Hybrid | Light-Purple | August | Aden, Paul | .1978 |
| 'Yellow Wedgwood' | Small | Yellow | | | Unknown | | | Unknown | --NR-- |
| 'Yellow Yeti' | Giant | Yellow | | | Unknown | | | Carlson, Monty & Julie | --NR-- |
| 'Yellowtail' | Small | Light-Green | | | Hybrid | Pale-Lavender | July | Elslager, Ed | .2005 |
| 'Zing Me Yellow' | Small | Yellow | Medial | Dark Green | Nat-Sport | Med-Lavender | July | Green Mountain Hosta | --NR-- |
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