| Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Season | Source | Registered |
| 'A B-1 Bomber' | Large | Dark Green | Streaked | Yellow | Hybrid | July into August | Elslager, Ed | .2002 |
| 'Aardvark' | Large | Light Green | Medial | Blue-Green | Hybrid | July into August | Savory, Dennis | .1991 |
| 'Abana' | Medium | Dark Green | Medial | Yellow | Nat-Sport | July into August | Dupre, Dirk | .2010 |
| 'Abba Aloft' | Large | Green | Marginal | Yellow | Nat-Sport | July into August | Aden, Paul | .1990 |
| 'Abba at Large' | Large | Yellow | Marginal | Green | Nat-Sport | July into August | Aden, Paul | .1990 |
| 'Abba Blue Plus' | Large | Blue-Green | Marginal | White | Unknown | August to September | Aden, Paul | .1990 |
| 'Abba Dabba Do' | Large | Dark Green | Marginal | Greenish White | Nat-Sport | July into August | Avent, Tony | .1998 |
| 'Abba Irresistible' | Medium | Blue-Green | Medial | Creamy White | Unknown | July into August | Aden, Paul | NR |
| 'Abba Ready' | Medium | Green | Marginal | White | Nat-Sport | August | Aden, Paul | NR |
| 'Abba Showtime' | Medium | Green | Marginal | Creamy White | Hybrid | July into August | Aden, Paul | NR |
| 'Abba Soul Mate' | Small | Blue-Green | Medial | Blue-Green | Unknown | July into August | Aden, Paul & Zilis, Mark | .2010 |
| 'Abba Windows' | Medium | Light Green | Marginal | Yellow | Nat-Sport | July into August | Aden, Paul & Zilis, Mark | .2010 |
| 'Abiqua Ambrosia' | Large | Green | | | Unknown | July into August | Walden West | .1987 |
| 'Abiqua Blue Jay' | Medium | Blue-Green | | | Unknown | July into August | Walden West | .1988 |
| 'Abiqua Delight' | Medium | Green | Marginal | Yellow | Unknown | July into August | Walden West | .1999 |
| 'Abiqua Elephant Ears' | Giant | Blue-Green | | | Hybrid | July into August | Walden West | .1999 |
| 'Abiqua Hallucination' | Medium | Blue-Green | | | Unknown | July into August | Walden West | .1988 |
| 'Abiqua Miniature' | Miniature | Green | | | Unknown | July into August | Walden West | .1988 |
| 'Abiqua Moonbeam' | Medium | Blue-Green | Marginal | Greenish White | Nat-Sport | July into August | Walden West | .1987 |
| 'Abiqua Trumpet' | Small | Blue-Green | | | Unknown | July into August | Walden West | .1987 |
| 'Abiqua Zodiac' | Large | Yellow | | | Unknown | July into August | Walden West | .1988 |
| 'Academy Another' | Medium | Green | Marginal | White | Unknown | July into August | Chamberlain, Steve | .2004 |
| 'Academy Bonfire Glade' | Medium | Green | | | Hybrid | August to September | Chamberlain, Steve | .2003 |
| 'Academy Chetwood' | Medium | Green | | | Hybrid | July into August | Chamberlain, Steve | .2005 |
| 'Academy Cockcrow' | Small | Green | Marginal | White | Nat-Sport | July into August | Chamberlain, Steve | .2009 |
| 'Academy Dark Space' | Medium | Blue-Green | | | Nat-Sport | July into August | Chamberlain, Steve | .2015 |
| 'Academy Devon Moor' | Medium | Green | | | Hybrid | July into August | Chamberlain, Steve | .2000 |
| 'Academy Dimholt' | Medium | Green | | | Hybrid | August | Chamberlain, Steve | .2000 |
| 'Academy Fangorn Forest' | Large | Green | | | Hybrid | August to September | Chamberlain, Steve | .2003 |
| 'Academy Faux Sedge' | Small | Green | | | Unknown | July into August | Chamberlain, Steve | .2008 |
| 'Academy Fire' | Medium | Yellow | Marginal | White | Nat-Sport | July into August | Chamberlain, Steve | .1997 |
| 'Academy Flaxen Spades' | Large | Light Green | | | Hybrid | July into August | Chamberlain, Steve | .2002 |
| 'Academy Galadriel' | Medium | Yellow | | | Hybrid | August to September | Chamberlain, Steve | .2000 |
| 'Academy Gilded Dawn' | Large | Yellow | | | Hybrid | July into August | Chamberlain, Steve | .2008 |
| 'Academy Glowing Embers' | Large | Yellow | Marginal | Yellow | Nat-Sport | July into August | Chamberlain, Steve | .2008 |
| 'Academy Green Bid Paddles' | Large | Dark Green | | | Hybrid | July into August | Chamberlain, Steve | .2015 |
| 'Academy Grins' | Small | Blue-Green | Marginal | Yellow | Unknown | July into August | Chamberlain, Steve | .2008 |
| 'Academy Halo Standard' | Large | Light Green | Marginal | White | Nat-Sport | July into August | Chamberlain, Steve | .2015 |
| 'Academy Lemon Knoll' | Medium | Light Green | | | Hybrid | July into August | Chamberlain, Steve | .2006 |
| 'Academy Little Prother' | Medium | Green | Streaked | Speckles | Hybrid | July into August | Chamberlain, Steve | .2011 |
| 'Academy Lothlórien' | Large | Yellow | | | Hybrid | July into August | Chamberlain, Steve | .2004 |
| 'Academy Mallorn' | Large | Green | | | Hybrid | July into August | Chamberlain, Steve | .2003 |
| 'Academy Mavrodaphne' | Medium | Dark Green | | | Hybrid | July into August | Chamberlain, Steve | .2000 |
| 'Academy Mirkwood' | Medium | Green | | | Hybrid | August | Chamberlain, Steve | .2003 |
| 'Academy Muse' | Medium | Yellow | Marginal | Green | Unknown | July into August | Chamberlain, Steve | .1997 |
| 'Academy Nazgul' | Medium | Green | | | Hybrid | August | Chamberlain, Steve | .2000 |
| 'Academy Palantir' | Large | Green | | | Hybrid | July into August | Chamberlain, Steve | .2000 |
| 'Academy Purple Orb' | Medium | Green | | | Hybrid | July into August | Chamberlain, Steve | .2015 |
| 'Academy Rivendell' | Large | Green | | | Hybrid | July into August | Chamberlain, Steve | .2005 |
| 'Academy Rumpled Beast' | Medium | Green | | | Hybrid | July into August | Chamberlain, Steve | .2015 |
| 'Academy Shiny Vase' | Giant | Green | | | Unknown | July into August | Chamberlain, Steve | .2001 |
| 'Academy Smiles' | Medium | Green | Marginal | Yellow | Unknown | July into August | Chamberlain, Steve | .2008 |
| 'Academy Soaring Rugosity' | Large | Green | | | Hybrid | July into August | Chamberlain, Steve | .2015 |
| 'Academy Speckled Vase' | Medium | Blue-Green | Streaked | Speckles | Hybrid | July into August | Chamberlain, Steve | .2008 |
| 'Academy Streaked Francee' | Large | Dark Green | Streaked | White | Nat-Sport | July into August | Chamberlain, Steve | NR |
| 'Academy Verdant Spades' | Small | Green | | | Hybrid | August to September | Chamberlain, Steve | .2003 |
| 'Academy Weathertop' | Medium | Green | | | Hybrid | August | Chamberlain, Steve | .2000 |
| 'Adorable' | Medium | Light Green | Marginal | Dark Green | Nat-Sport | August to September | Van Hoorn, James | NR |
| 'Adrian's Glory' | Medium | Light Green | Marginal | Dark Green | Nat-Sport | July into August | Van Hoorn, James | NR |
| 'Agawa' | Giant | Blue-Green | | | Hybrid | July into August | Wade, Van | .2007 |
| 'Ahwaneeh' | Large | Light Green | | | Hybrid | July into August | Syre-Herz, Ursula | .1990 |
| 'Aichi' | Medium | Dark Green | | | Nat-Sport | August to September | Unknown | NR |
| 'Aidan Bryden Cleghorn' | Small | Dark Green | Marginal | Yellow | Unknown | July into August | Chamberlain, Steve | .2006 |
| 'Ain't Misbehavin' | Medium | Green | | | Hybrid | August to October | Dalton, Jim & Meg | .2012 |
| 'Akane' | Medium | Dark Green | | | Unknown | August to September | Gotemba Nursery & Hawes, James & Ruh, Peter & Jean | .2010 |
| 'Alakazaam' | Small | Light Green | Marginal | Yellow | Hybrid | July into August | Livingston, Ron | .2008 |
| 'Alan Titchmarsh' | Large | Green | Medial | Yellow | Nat-Sport | July into August | Ford, Richard & Mary | .2006 |
| 'Alaskan Halo' | Large | Green | Marginal | White | Nat-Sport | July into August | Ruh, Peter | .1997 |
| 'Alba' | Small | Green | | | Hybrid | August | Unknown | NR |
| 'Alcebana Kukurin' | Miniature | Green | Marginal | White | Unknown | August to September | Unknown | NR |
| 'Alex' | Medium | Green | Marginal | Yellow | Hybrid | July into August | Graves, Butch | .2008 |
| 'Alice Blue Gown' | Medium | Blue-Green | Streaked | Yellow | Hybrid | July into August | Elslager, Ed | .2002 |
| 'Alien Technology' | Medium | Green | | | Unknown | July into August | Livingston, Ron | NR |
| 'Alinghi' | Large | Blue-Green | | | Hybrid | August to September | Hirsbrunner, Lisolette | .2003 |
| 'Aliyah's Grace' | Small | Light Green | | | Hybrid | July into August | Asch, Stuart | .2004 |
| 'All Gold' | Medium | Yellow | | | Unknown | July into August | Freeman, Franc | NR |
| 'All Jazzed Up' | Medium | Green | Streaked | Yellow | Nat-Sport | July into August | Powell, Loleta | .2000 |
| 'All That Jazz' | Large | Dark Green | Marginal | White | Hybrid | July into August | Petryszyn, Olga | .2006 |
| 'Allan P. McConnell' | Medium | Green | Marginal | White | Unknown | July into August | Seaver, Mildred | .1980 |
| 'Allegan Fog' | Medium | Green | Medial | Speckles | Hybrid | July into August | Ruh, Peter | .2000 |
| 'Allegheny River' | Medium | Green | | | Hybrid | August | Malloy, Alex | .2005 |
| 'Allegiance' | Medium | Green | Marginal | White | Nat-Sport | August | Helsley, Calvin | .2004 |
| 'Alley Oop' | Small | Green | Streaked | White | Nat-Sport | July into August | Malloy, Alex | .2001 |
| 'Alleyne Cook' | Large | Blue-Green | Marginal | Yellow | Nat-Sport | July into August | Cook, Alleyne & Hodgson, D. | .2003 |
| 'Allo, Allo, Allo' | Medium | Green | | | Hybrid | July into August | Scheer, Alttara & Gilligan, Madelon | 2017 |
| 'Alma' | Small | Yellow | | | Unknown | August | Krossa, Gus & Ruh, Peter | .1995 |
| 'Almost' | Medium | Green | | | Hybrid | August to October | Wrede, Arthur | .2005 |
| 'Almost Heaven' | Medium | Dark Green | Medial | White | Unknown | July into August | Beilstein, Doug & Mardy | .2012 |
| 'Aloha' | Medium | Dark Green | Marginal | Yellow | Nat-Sport | August to September | Zilis, Mark & Schwarz, Jim | .2015 |
| 'Alpine Aire' | Medium | Yellow | | | Hybrid | July into August | Minks, Eldren | .1980 |
| 'Alpine Ice' | Large | Green | Marginal | White | Nat-Sport | July into August | Green Mountain Hosta | NR |
| 'Alternative' | Medium | Dark Green | | | Nat-Sport | July into August | van den Top, Jan | NR |
| 'Amber Glass' | Large | Yellow | | | TC Sport | August | Anderson, Jim | NR |
| 'Amber Tiara' | Medium | Yellow | | | Nat-Sport | July into August | Walters Gardens | .1998 |
| 'Amber Waves of Grain' | Large | Green | Marginal | Yellow | Hybrid | July into August | Elslager, Ed | .2003 |
| 'Ambrosia' | Large | Blue-Green | Medial | Yellow | Nat-Sport | July into August | Solberg, Robert | .2016 |
| 'American Bikini' | Miniature | Light Green | Streaked | White | Nat-Sport | August to September | Wade, Van | NR |
| 'American Chippewa' | Medium | Blue-Green | | | Unknown | July into August | Wade, Van | NR |
| 'American Choice' | Large | Green | Marginal | Greenish White | TC Sport | July into August | Wade, Van | .2007 |
| 'American Dream' | Medium | Green | Marginal | White | Nat-Sport | July into August | Wade, Van | .1999 |
| 'American Fashion' | Large | Yellow | Marginal | Green | Nat-Sport | July into August | Wade, Van | NR |
| 'American Gold Edge' | Medium | Green | Marginal | Yellow | Unknown | July into August | Wade, Van | .1999 |
| 'American Gothic' | Medium | Green | Marginal | Yellow | Nat-Sport | July into August | Johnson, Greg | .2008 |
| 'American Idol' | Medium | Green | Marginal | Yellow | Nat-Sport | August | Goodwin, Randy | .2005 |
| 'American Misty' | Large | Blue-Green | Medial | Greenish White | Nat-Sport | July into August | Wade, Van | .2005 |
| 'American Sonata' | Large | Green | Medial | Yellow | Nat-Sport | August | Wade, Van | NR |
| 'American Standard' | Medium | Green | Marginal | Yellow | Nat-Sport | July into August | Wade, Van | NR |
| 'American Starburst' | Small | Green | Marginal | White | Nat-Sport | August | Wade, Van | NR |
| 'American Sweetheart' | Large | Dark Green | Medial | White | Nat-Sport | July into August | Hansen, Hans | .2002 |
| 'American Weenie Bikini' | Miniature | Light Green | Streaked | Yellow | Nat-Sport | August to September | Wade, Van | NR |
| 'Americana' | Medium | Green | Medial | White | Nat-Sport | July into August | Walters Gardens | .2006 |
| 'Amethyst Chip' | Miniature | Blue-Green | | | Hybrid | July into August | Benedict, Dr R. (Herb) & Dorothy | .2000 |
| 'Amethyst Facet' | Small | Blue-Green | | | Unknown | July into August | Benedict, Dr Ralph (Herb) | .2003 |
| 'Amethyst Joy' | Medium | Green | | | Hybrid | July into August | Sugita, Hajime & Ruh, Peter | .2000 |
| 'Amigo' | Large | Blue-Green | Marginal | Yellow | Nat-Sport | July into August | Schwarz, Karen & Zilis, Mark | .2014 |
| 'Amime Tachi' | Medium | Green | Streaked | Yellow | Nat-Sport | August | Unknown | NR |
| 'An Old Smoothie' | Medium | Green | Streaked | Speckles | Hybrid | July into August | Elslager, Ed | .2003 |
| 'Anaconda' | Medium | Light Green | | | Hybrid | July into August | Scheer, Alttara & Gilligan, Madelon | .2015 |
| 'Andy Murray' | Medium | Blue-Green | Marginal | Yellow | Hybrid | July into August | BHHS & Solberg, Robert | .2013 |
| 'Angel Feathers' | Medium | Green | Marginal | Creamy White | Hybrid | July into August | Vaughn, Kevin & Walek, Kevin | .2009 |
| 'Angie's Dimples' | Large | Dark Green | | | Nat-Sport | August to September | Milbradt, Marc | .2009 |
| 'Ani Machi' | Medium | Green | Medial | Greenish White | Unknown | August to September | Ruh, Peter & Jean | .2002 |
| 'Anita' | Small | Green | Marginal | White | Hybrid | July into August | Graves, Butch | .2009 |
| 'Ann Kulpa' | Large | Green | Medial | White | Hybrid | July into August | Kulpa, John | .1999 |
| 'Anna Lindh' | Medium | Light Green | Medial | White | Unknown | August to September | Kósa, L. | .2005 |
| 'Anna the Stripper' | Medium | Yellow | Streaked | Green | Unknown | July into August | Barger, Bill & Anna | .2016 |
| 'Anne Arett' | Small | Green | Marginal | White | Nat-Sport | July into August | Arett, Anne | .1975 |
| 'Antioch' | Large | Green | Marginal | Creamy White | Hybrid | July into August | Tompkins, Cynthia & Hofer, Paul & Ruh, Peter | .1979 |
| 'Aoba Komachi' | Small | Green | | | Nat-Sport | July into August | Unknown | NR |
| 'Aoki' | Large | Green | | | Unknown | July into August | Bailey, Liberty Hyde & AHS | .1987 |
| 'Aomori Gold' | Medium | Yellow | | | Nat-Sport | August to October | Muroya, Kimio & Zilis, Mark | .2009 |
| 'Aomori Gold Star' | Medium | Yellow | Marginal | Green | Nat-Sport | August to September | Muroya, Kimio & Zilis, Mark | .2009 |
| 'Aomori Select' | Medium | Green | | | Nat-Sport | July into August | Zilis, Mark | .2009 |
| 'Aomori Setting Sun' | Medium | Green | Marginal | Yellow | Nat-Sport | August to October | Unknown | NR |
| 'Aomori Sunrise' | Large | Green | Medial | Yellow | Nat-Sport | July into August | Unknown | NR |
| 'Apache' | Medium | Green | Medial | Yellow | Nat-Sport | July into August | Wade, Van | NR |
| 'Aphrodite' | Large | Green | | | Nat-Sport | August to October | Maekawa, Dr Fumio, Schmid, W. & Walek, Kevin | .2009 |
| 'Apple Candy' | Medium | Green | Marginal | Yellow | Nat-Sport | July into August | van den Top, Jan | NR |
| 'Applegate' | Medium | Green | Medial | White | Nat-Sport | August to September | Summers, Alex | NR |
| 'Appletini' | Small | Yellow | | | Hybrid | August | Zilis, Mark | .2009 |
| 'Applique' | Small | Green | Marginal | White | Unknown | July into August | Jones, C.L. | .2016 |
| 'Aqua Velva' | Large | Blue-Green | | | Hybrid | July into August | Vaughn, Kevin | .1983 |
| 'Aquamarine' | Medium | Blue-Green | | | Unknown | July into August | Gossett, Gary & Terra Nova Nurseries | NR |
| 'Arc de Triomphe' | Large | Blue-Green | Marginal | Creamy White | Hybrid | July into August | Elslager, Ed | .2000 |
| 'Arch Duke' | Giant | Blue-Green | | | Hybrid | July into August | Lydell, Ransom | .2000 |
| 'Arctic Circle' | Medium | Green | Marginal | White | Unknown | July into August | Tompkins, Chet & Ruh, Peter & Jean | .2002 |
| 'Arctic Frost' | Large | Blue-Green | Streaked | Speckles | Nat-Sport | August to October | Trucks, Gary | NR |
| 'Arctic Rim' | Medium | Blue-Green | Marginal | White | Nat-Sport | July into August | Lydell, Ransom | .1993 |
| 'Arctic Sunset' | Medium | Light Green | Streaked | Yellow | Nat-Sport | August to September | Ruh, Peter & Jean | .2005 |
| 'Aristocrat' | Small | Blue-Green | Marginal | Creamy White | Nat-Sport | July into August | Walters Gardens | .1997 |
| 'Armani' | Large | Dark Green | | | Hybrid | July into August | Van Eechaute, Danny | .2015 |
| 'Aroma of Arbutus' | Medium | Light Green | | | Unknown | August to September | Kwick, Charles | .2016 |
| 'Arten' | Medium | Blue-Green | | | Hybrid | August | Livingston, Ron | NR |
| 'Artist's Palette' | Medium | Green | Marginal | White | Hybrid | July into August | Kuk, Bob | .1986 |
| 'Asher' | Large | Blue-Green | | | Hybrid | July into August | Kwick, Charles | 2017 |
| 'Aslan' | Medium | Green | Streaked | Yellow | Nat-Sport | July into August | Roozekrans, Andi | NR |
| 'Astral Bliss' | Small | Blue-Green | | | Hybrid | July into August | Dean, Don | .2009 |
| 'At Attention' | Medium | Light Green | | | Unknown | August to September | Benedict, Dr R. (Herb) & Kuenster, Rod | .2010 |
| 'Athena' | Medium | Green | Streaked | White | TC Sport | August | Hird, Bob | .2005 |
| 'Athletic Event' | Medium | Green | Marginal | White | Nat-Sport | July into August | Nyikos, Frank | .2008 |
| 'Atomic Dragon' | Small | Light Green | | | Hybrid | August | Livingston, Ron | NR |
| 'Atomic Elvis Blue' | Medium | Blue-Green | | | Hybrid | August | Livingston, Ron | NR |
| 'Atomic Elvis Green' | Small | Green | | | Hybrid | August | Livingston, Ron | NR |
| 'Atomic Mama' | Medium | Green | | | Hybrid | August | Livingston, Ron | NR |
| 'August Beauty' | Large | Dark Green | Marginal | Yellow | Nat-Sport | July into August | Warmerdam, Piet & Walek, Kevin | .2009 |
| 'August Emerald' | Large | Dark Green | | | Nat-Sport | July into August | Wade, Van | NR |
| 'August Fire' | Medium | Blue-Green | Marginal | White | TC Sport | August to September | Bergeron, Amy & Walters Gardens | .2008 |
| 'August Moon' | Large | Yellow | | | Unknown | July into August | Langfelder, Richard & Ruh, Peter | .1996 |
| 'August Moon Green' | Large | Green | | | Nat-Sport | July into August | Wade, Van | NR |
| 'Augustus' | Medium | Green | Marginal | White | Hybrid | July into August | Tylinski, Stan & Malloy, Alex | .2003 |
| 'Aurea' H. longipes | Medium | Yellow | | | Hybrid | August to October | Unknown | NR |
| 'Aurora's Glow' | Medium | Green | Marginal | Green | Nat-Sport | July into August | McHugh, Ed | .2012 |
| 'Austin Dickinson' | Medium | Green | Marginal | Yellow | Hybrid | August to October | Lachman, Wm & Eleanor | .1992 |
| 'Autumn Bouquet' | Medium | Dark Green | | | Unknown | August to September | Unknown | NR |
| 'Autumn Frost' | Large | Yellow | Medial | Green | TC Sport | July into August | Walters Gardens | .2009 |
| 'Autumn Joy' | Large | Green | | | Unknown | August to September | Benedict, Dr R. (Herb) & Kuenster, Rod | .2010 |
| 'Avalanche' | Medium | Green | Marginal | Creamy White | Hybrid | July into August | Goodwin, Randy | .2000 |
| 'Avery Angel' | Medium | Yellow | Marginal | White | Unknown | July into August | Tiffany, Barbara | .2005 |
| 'Avocado' | Large | Green | Medial | Yellow | Nat-Sport | July into August | Diesen, Bernie & Jane | .1998 |
| 'Awakening Angel' | Medium | Blue-Green | | | Hybrid | July into August | Nyikos, Frank | .2005 |
| 'Azure Cherub' | Medium | Blue-Green | | | Unknown | July into August | Ruh, Peter | .2002 |
| 'Azure Frills' | Medium | Blue-Green | | | Hybrid | July into August | Zilis, Mark | .2010 |
| 'Azure Mediterranean' | Large | Green | | | Unknown | July into August | Helsley, Calvin | .1999 |
| 'Azure Snow' | Large | Blue-Green | | | Hybrid | August to October | Ruh, Peter | .1991 |
| 'Azuretini' | Small | Green | | | Hybrid | August to October | Zilis, Mark | .2009 |
|