| Medium Size Hostas | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
| 'A 10 Hut' | Blue/Green | Streaked | Yellow | Nat-Sport | Pale-Lavender | July | Meyer, Bill & Brashear, Carol | --NR-- |
| 'A Dog of Flanders' | Med-Green | | | Hybrid | | | Philips, Hugo | .2010 |
| 'A Lady in Blue' | Blue/Green | Marginal | Yellow | Hybrid | Pale-Lavender | July | Elslager, Ed | .2004 |
| 'A Many-splendored Thing' | Dark-Green | Marginal | Creamy White | Hybrid | Pale-Lavender | June into July | Elslager, Ed | .1999 |
| 'Aachen' | Blue/Green | | | Hybrid | | June into July | Malloy, Alex | .2005 |
| 'Abana' | Dark-Green | Medial | Yellow | Nat-Sport | | July into August | Dupre, Dirk | .2010 |
| 'Abba Alight' | Med-Green | Medial | Yellow | Unknown | | | Aden, Paul | --NR-- |
| 'Abba Blue Dreams' | Blue/Green | Marginal | White | Unknown | | | Aden, Paul | --NR-- |
| 'Abba Blue Flight' | Blue/Green | | | Unknown | | | Aden, Paul | --NR-- |
| 'Abba Dabba Darling' | Light Yellow | Marginal | Green | Nat-Sport | Pale-Lavender | July | Parsons, Russ & Summers, Alex | --NR-- |
| 'Abba Diane Reeck' | Dark-Green | Medial | White | Unknown | | | Aden, Paul & Zilis, Mark | .2010 |
| 'Abba Double Header' | Med-Green | Medial | White | Unknown | | June into July | Aden, Paul & Zilis, Mark | .2010 |
| 'Abba Fit' | Blue/Green | Marginal | White | Unknown | Near-White | July | Aden, Paul | .1990 |
| 'Abba Flame' | Blue/Green | Medial | Yellow | Unknown | | | Aden, Paul | --NR-- |
| 'Abba Fragrant Centennial' | Med-Green | Marginal | Yellow | Unknown | | | Aden, Paul | --NR-- |
| 'Abba Fragrant Cloud' | Med-Green | Marginal | White | Unknown | Pure-White | July | Aden, Paul | .1990 |
| 'Abba Fragrant Sentry' | Med-Green | Marginal | White | Unknown | | | Aden, Paul | --NR-- |
| 'Abba High Bidder' | Med-Green | Medial | Yellow | Unknown | | | Aden, Paul | --NR-- |
| 'Abba Icecapades' | Med-Green | Medial | White | Unknown | | | Aden, Paul | --NR-- |
| 'Abba Irresistible' | Blue/Green | Medial | Creamy White | Unknown | Light-Purple | July into August | Aden, Paul | --NR-- |
| 'Abba Lit' | Yellow | | | Unknown | | | Aden, Paul | --NR-- |
| 'Abba Loops' | Med-Green | | | Unknown | | | Aden, Paul | --NR-- |
| 'Abba Mist' | Med-Green | Streaked | Yellow | Unknown | | | Aden, Paul | --NR-- |
| 'Abba Ready' | Med-Green | Marginal | White | Nat-Sport | Pale-Lavender | August | Aden, Paul | --NR-- |
| 'Abba Redskin' | Light-Green | Marginal | White | Unknown | | | Aden, Paul | --NR-- |
| 'Abba Rough' | Blue/Green | | | Unknown | Near-White | June into July | Aden, Paul | --NR-- |
| 'Abba Satellite' | Dark-Green | Marginal | Yellow | Unknown | | | Aden, Paul | --NR-- |
| 'Abba Showtime' | Med-Green | Marginal | Creamy White | Hybrid | Pure-White | July into August | Aden, Paul | --NR-- |
| 'Abba Sombrero' | Med-Green | Medial | Yellow | Unknown | | | Aden, Paul | --NR-- |
| 'Abba Windows' | Light-Green | Marginal | Yellow | Nat-Sport | Near-White | July into August | Aden, Paul & Zilis, Mark | .2010 |
| 'Abbey Road' | Dark-Green | Marginal | White | Unknown | | June into July | Wasitis, Chick | .2014 |
| 'Aberdeen Mountain' | Blue/Green | | | Unknown | | | Kovalcsik, Joanna | --NR-- |
| 'Abiqua Aries' | Blue/Green | | | Hybrid | Near-White | July | Walden West | .1999 |
| 'Abiqua Blue Crinkles' | Blue/Green | | | Unknown | Near-White | June into July | Walden West | .1999 |
| 'Abiqua Blue Jay' | Blue/Green | | | Unknown | Pale-Lavender | July into August | Walden West | .1988 |
| 'Abiqua Blue Madonna' | Blue/Green | | | Unknown | Pale-Lavender | July | Walden West | .1988 |
| 'Abiqua Chelais' | Med-Green | | | Unknown | | | Walden West | --NR-- |
| 'Abiqua Delight' | Med-Green | Marginal | Yellow | Unknown | Deep-Purple | July into August | Walden West | .1999 |
| 'Abiqua Hallucination' | Blue/Green | | | Unknown | Pale-Lavender | July into August | Walden West | .1988 |
| 'Abiqua Moonbeam' | Blue/Green | Marginal | Greenish White | Nat-Sport | Pale-Lavender | July into August | Walden West | .1987 |
| 'About Face' | Med-Green | Marginal | Yellow | Unknown | | | Smith, Fred | --NR-- |
| 'Abracadabra' | Blue/Green | Marginal | Yellow | Nat-Sport | Pale-Lavender | June into July | Blake, Amanda | .2012 |
| 'Abraham Lincoln' | Blue/Green | | | Hybrid | Light-Purple | June into July | Beilstein, Doug & Zilis, Mark | .2009 |
| 'Academy Another' | Med-Green | Marginal | White | Unknown | Med-Lavender | July into August | Chamberlain, Steve | .2004 |
| 'Academy Aureate Piffle' | Yellow | | | Hybrid | Pale-Lavender | June into July | Chamberlain, Steve | .2006 |
| 'Academy Beech Leaf Stack' | Yellow | | | Hybrid | Pale-Lavender | June into July | Chamberlain, Steve | .2015 |
| 'Academy Blushing Recluse' | Med-Green | Marginal | Yellow | Nat-Sport | Near-White | June into July | Chamberlain, Steve | .1999 |
| 'Academy Bonfire Glade' | Med-Green | | | Hybrid | Light-Purple | August to September | Chamberlain, Steve | .2003 |
| 'Academy Chetwood' | Med-Green | | | Hybrid | Med-Lavender | July into August | Chamberlain, Steve | .2005 |
| 'Academy Dark Space' | Blue/Green | | | Nat-Sport | Med-Lavender | July into August | Chamberlain, Steve | .2015 |
| 'Academy Devon Moor' | Med-Green | | | Hybrid | Near-White | July into August | Chamberlain, Steve | .2000 |
| 'Academy Dimholt' | Med-Green | | | Hybrid | Pale-Lavender | August | Chamberlain, Steve | .2000 |
| 'Academy Fickle Fellow' | Med-Green | Streaked | White | Hybrid | Near-White | June into July | Chamberlain, Steve | .2011 |
| 'Academy Fire' | Yellow | Marginal | White | Nat-Sport | Pale-Lavender | July into August | Chamberlain, Steve | .1997 |
| 'Academy Flora' | Med-Green | | | Unknown | Pale-Lavender | July | Chamberlain, Steve | .1999 |
| 'Academy Galadriel' | Yellow | | | Hybrid | Med-Lavender | August to September | Chamberlain, Steve | .2000 |
| 'Academy Gold Codswallop' | Light-Green | | | Hybrid | Near-White | June into July | Chamberlain, Steve | .2006 |
| 'Academy Golden Papoose' | Light-Green | | | Unknown | | June into July | Chamberlain, Steve | .2004 |
| 'Academy Kakistocracy' | Blue/Green | Marginal | Green | Hybrid | Near-White | June into July | Chamberlain, Steve | .2005 |
| 'Academy Lemon Knoll' | Light-Green | | | Hybrid | Pale-Lavender | July into August | Chamberlain, Steve | .2006 |
| 'Academy Little Prother' | Med-Green | Streaked | Speckles | Hybrid | Pure-White | July into August | Chamberlain, Steve | .2011 |
| 'Academy Mavrodaphne' | Dark-Green | | | Hybrid | Pale-Lavender | July into August | Chamberlain, Steve | .2000 |
| 'Academy Mirkwood' | Med-Green | | | Hybrid | Light-Purple | August | Chamberlain, Steve | .2003 |
| 'Academy Muse' | Yellow | Marginal | Green | Unknown | Near-White | July into August | Chamberlain, Steve | .1997 |
| 'Academy Nazgul' | Med-Green | | | Hybrid | Pale-Lavender | August | Chamberlain, Steve | .2000 |
| 'Academy Nightfall' | Dark-Green | | | Nat-Sport | Med-Lavender | June into July | Chamberlain, Steve | .2009 |
| 'Academy Purple Orb' | Med-Green | | | Hybrid | Med-Lavender | July into August | Chamberlain, Steve | .2015 |
| 'Academy Rumpled Beast' | Med-Green | | | Hybrid | Med-Lavender | July into August | Chamberlain, Steve | .2015 |
| 'Academy Smiles' | Med-Green | Marginal | Yellow | Unknown | Light-Purple | July into August | Chamberlain, Steve | .2008 |
| 'Academy Speckled Vase' | Blue/Green | Streaked | Speckles | Hybrid | Med-Lavender | July into August | Chamberlain, Steve | .2008 |
| 'Academy Weathertop' | Med-Green | | | Hybrid | Light-Purple | August | Chamberlain, Steve | .2000 |
| 'Ace Bill Wundram' | Dark-Green | Marginal | Yellow | Unknown | | June into July | Freeman, Franc & Sally | .2008 |
| 'Ace of Spades' | Dark-Green | | | Hybrid | Pale-Lavender | June | Lunsford, Ernest Jr. | .1993 |
| 'Aces High' | Med-Green | | | Hybrid | | | Beilstein, Doug | --NR-- |
| 'Ada Reed' | Yellow | | | Hybrid | Light-Purple | June into July | Suggs, Natalee | .1988 |
| 'Ada Robinson' | Dark-Green | Marginal | White | Unknown | Near-White | June into July | Goodwin, Randy | .2018 |
| 'Adipose Donkey' | Blue/Green | | | Hybrid | | | Moore, Jeff | --NR-- |
| 'Adorable' | Light-Green | Marginal | Dark Green | Nat-Sport | Pure-White | August to September | Van Hoorn, James | --NR-- |
| 'Adrenaline Rush' | Blue/Green | Streaked | Yellow | Unknown | | | Ramsey, Reldon | --NR-- |
| 'Adrian's Glory' | Light-Green | Marginal | Dark Green | Nat-Sport | Pale-Lavender | July into August | Van Hoorn, James | --NR-- |
| 'Advance to Go' | Med-Green | Streaked | White | Hybrid | | | Malloy, Alex | --NR-- |
| 'Aestival Festival' | Yellow | | | Unknown | Pale-Lavender | July | Syre-Herz, Ursula | .1996 |
| 'Age of Aquarius' | Blue/Green | | | Hybrid | Near-White | July | Ward, Dr Dick & Jane | .2011 |
| 'Ah-ha-ha-bah' | Blue/Green | | | Unknown | Light-Purple | June into July | Wade, Van | --NR-- |
| 'Ahhhs' | Blue/Green | | | TC Sport | Pale-Lavender | July into August | Mortko, Rob | --NR-- |
| 'Ahr' | Blue/Green | | | Hybrid | | | Klose, Heinz | --NR-- |
| 'Aichi' | Dark-Green | | | Nat-Sport | Light-Purple | August to September | Unknown | --NR-- |
| 'Ain't Misbehavin' | Med-Green | | | Hybrid | Med-Lavender | August to October | Dalton, Jim & Meg | .2012 |
| 'Akane' | Dark-Green | | | Unknown | Light-Purple | August to September | Watanabe, Kenji & Hawes, James & Ruh, Peter & Jean | .2010 |
| 'Aladdin's Lamp' | Light-Green | | | Unknown | Pale-Lavender | July | Ward, Dr Dick & Jane | .1996 |
| 'Alcebana Fukurin' | Med-Green | Marginal | White | Unknown | | | Unknown | --NR-- |
| 'Alex' | Med-Green | Marginal | Yellow | Hybrid | | July into August | Graves, Butch | .2008 |
| 'Alice Blue Gown' | Blue/Green | Streaked | Yellow | Hybrid | Light-Purple | July into August | Elslager, Ed | .2002 |
| 'Alice In Wonderland' | Yellow | Marginal | Green | Hybrid | Pale-Lavender | June into July | Malloy, Alex | .2001 |
| 'Alice McConnel' | Med-Green | Marginal | White | Unknown | Pale-Lavender | June | Anderson, Jim | --NR-- |
| 'Alien Technology' | Med-Green | | | Unknown | Light-Purple | July into August | Livingston, Ron | --NR-- |
| 'All Gold' | Yellow | | | Unknown | Med-Lavender | July into August | Freeman, Franc | --NR-- |
| 'All Jazzed Up' | Med-Green | Streaked | Yellow | Nat-Sport | Near-White | July into August | Powell, Loleta | .2000 |
| 'All Star' | Med-Green | Streaked | Yellow | Nat-Sport | Pale-Lavender | June into July | Aiello, D. | .2005 |
| 'Allan P. McConnell' | Med-Green | Marginal | White | Unknown | Pale-Lavender | July into August | McConnell, Allan & Seaver, Mildred | .1980 |
| 'Allegan Fog' | Med-Green | Medial | Speckles | Hybrid | Pale-Lavender | July into August | Ruh, Peter | .2000 |
| 'Allegan Peppermint' | Light-Green | | | Unknown | | | Unknown | --NR-- |
| 'Allegheny Moon' | Med-Green | | | Hybrid | | | Malloy, Alex | --NR-- |
| 'Allegheny River' | Med-Green | | | Hybrid | Pure-White | August | Malloy, Alex | .2005 |
| 'Allegiance' | Med-Green | Marginal | White | Nat-Sport | Pale-Lavender | August | Helsley, Calvin | .2004 |
| 'Alligator Alley' | Blue/Green | Medial | Yellow | TC Sport | Near-White | June into July | Walters Gardens | .2012 |
| 'Alligator Shoes' | Blue/Green | Marginal | White | Hybrid | Pale-Lavender | July | Benedict, Dr R. (Herb) & Walek, Kevin | .2009 |
| 'Allo, Allo, Allo' | Med-Green | | | Hybrid | Med-Lavender | July into August | Scheer, Alttara & Gilligan, Madelon | .2017 |
| 'Almost' | Green | | | Hybrid | Light-Purple | August to October | Wrede, Arthur | .2005 |
| 'Almost Heaven' | Dark-Green | Medial | White | Unknown | | July into August | Beilstein, Doug & Mardy | .2012 |
| 'Aloha' | Dark-Green | Marginal | Yellow | Nat-Sport | Pale-Lavender | August to September | Zilis, Mark & Schwarz, Jim | .2015 |
| 'Alotta Beauty' | Med-Green | Medial | White | Unknown | | | Unknown | --NR-- |
| 'Alpha' | Med-Green | Marginal | Yellow | Hybrid | | | Malloy, Alex | --NR-- |
| 'Alpine Aire' | Yellow | | | Hybrid | Pale-Lavender | July into August | Minks, Eldren | .1980 |
| 'Alpine Dream' | Med-Green | | | Hybrid | Light-Purple | July | Savory, Robert | .1982 |
| 'Alternative' | Dark-Green | | | Nat-Sport | Med-Lavender | July into August | van den Top, Jan | --NR-- |
| 'Always and Forever' | Dark-Green | Marginal | White | Unknown | Near-White | June into July | Goodwin, Randy | .2017 |
| 'Amakazari' | Dark-Green | | | Unknown | | | Nakayama, Toyozo | --NR-- |
| 'Amalia' | Dark-Green | Medial | Yellow | Nat-Sport | Med-Lavender | June into July | van den Top, Jan | --NR-- |
| 'Amazing Grace' | Med-Green | Marginal | White | Hybrid | Near-White | June into July | Ward, Dr Dick & Jane | .1999 |
| 'Amazone' | Dark-Green | Medial | White | Nat-Sport | Med-Lavender | July into August | Heemskerk, Gerardus | .2018 |
| 'Amber Tiara' | Yellow | | | Nat-Sport | Deep-Purple | July into August | Walters Gardens | .1998 |
| 'American Beauty' | Green | Streaked | White | Hybrid | Pale-Lavender | July | Asch, Stuart | .2000 |
| 'American Chippewa' | Blue/Green | | | Unknown | Pale-Lavender | July into August | Wade, Van | --NR-- |
| 'American Dream' | Med-Green | Marginal | White | Nat-Sport | Pale-Lavender | July into August | Wade, Van | .1999 |
| 'American Galaxy' | Dark-Green | Streaked | Speckles | Hybrid | Pale-Lavender | July | Wade, Van | --NR-- |
| 'American Gold Canoe' | Blue/Green | | | Nat-Sport | Pale-Lavender | June into July | Wade, Van | --NR-- |
| 'American Gold Edge' | Med-Green | Marginal | Yellow | Unknown | | July into August | Wade, Van | .1999 |
| 'American Golden Frills' | Yellow | | | Unknown | | | Wade, Van | --NR-- |
| 'American Gothic' | Med-Green | Marginal | Yellow | Nat-Sport | | | Beilstein, Doug | --NR-- |
| 'American Gothic' | Med-Green | Marginal | Yellow | Nat-Sport | Pale-Lavender | July into August | Johnson, Greg | .2008 |
| 'American Hero' | Med-Green | Medial | White | TC Sport | Pale-Lavender | June into July | Bergeron, Amy & Walters Gardens | .2010 |
| 'American Idol' | Med-Green | Marginal | Yellow | Nat-Sport | Pale-Lavender | August | Goodwin, Randy | .2005 |
| 'American Lapdance' | Med-Green | Medial | White | Nat-Sport | Med-Lavender | July | Karbula, Steve & Wade, Van | --NR-- |
| 'American Prayers' | Light-Green | | | Hybrid | Pale-Lavender | June into July | Wade, Van | --NR-- |
| 'American Prayers Supreme' | Light-Green | | | Nat-Sport | Near-White | June | Silvers, Bill | --NR-- |
| 'American Royalty' | Med-Green | Medial | White | Unknown | | | Goodwin, Randy | --NR-- |
| 'American Standard' | Med-Green | Marginal | Yellow | Nat-Sport | Pale-Lavender | July into August | Wade, Van | --NR-- |
| 'Americana' | Med-Green | Medial | White | Nat-Sport | Pale-Lavender | July into August | Walters Gardens | .2006 |
| 'Amethyst Blue' | Blue/Green | | | Hybrid | Deep-Purple | June into July | Seaver, Charles | .1996 |
| 'Amethyst Jewel' | Med-Green | | | Hybrid | Light-Purple | September | Banyai, Pauline | .1992 |
| 'Amethyst Joy' | Green | | | Hybrid | | July into August | Sugita, Hajime & Ruh, Peter | .2000 |
| 'Amethyst Star' | Dark-Green | | | Hybrid | Deep-Purple | | Spence, Jim | --NR-- |
| 'Amime Tachi' | Med-Green | Streaked | Yellow | Nat-Sport | Light-Purple | August | Unknown | --NR-- |
| 'Amo Rural and Urban | Med-Green | Marginal | White | Unknown | | | Goodwin, Randy | --NR-- |
| 'Amy Elizabeth' | Med-Green | Marginal | Greenish White | Nat-Sport | Pale-Lavender | July | Zilis, Mark | .2003 |
| 'Amy Stewart' | Blue/Green | | | Unknown | | | Stark, Gunther | --NR-- |
| 'Amy's Hope' | Yellow | Marginal | White | Nat-Sport | Light-Purple | July | Snyder, Ron | .2000 |
| 'An Old Smoothie' | Med-Green | Streaked | Speckles | Hybrid | Pale-Lavender | July into August | Elslager, Ed | .2003 |
| 'Anaconda' | Light-Green | | | Hybrid | Pale-Lavender | July into August | Scheer, Alttara & Gilligan, Madelon | .2015 |
| 'Anderson Form' | Med-Green | | | Hybrid | Light-Purple | July | Anderson, Kenneth | --NR-- |
| 'Andrew M. Wright' | Med-Green | Marginal | Yellow | Unknown | | | Chamberlain, Steve | .2014 |
| 'Andrew's Moody Mom' | Blue/Green | | | Unknown | | June into July | Wolfe, A. & Freeman, Franc | .2010 |
| 'Andy' | Blue/Green | | | Unknown | | | Goodwin, Randy | --NR-- |
| 'Andy Murray' | Blue/Green | Marginal | Yellow | Hybrid | Pale-Lavender | July into August | BHHS & Solberg, Robert | .2013 |
| 'Angel Feathers' | Med-Green | Marginal | Creamy White | Hybrid | Light-Purple | July into August | Vaughn, Kevin & Walek, Kevin | .2009 |
| 'Angel from Montgomery' | Med-Green | Marginal | Yellow | Unknown | | June into July | Wasitis, Chick | .2014 |
| 'Angelique' | Med-Green | Marginal | Yellow | Unknown | | | Zumbar, Wm | --NR-- |
| 'Anglo Saxon' | Med-Green | Marginal | Yellow | Hybrid | Pale-Lavender | July | Malloy, Alex | .2001 |
| 'Ani Machi' | Med-Green | Medial | Greenish White | Unknown | Light-Purple | August to September | Ruh, Peter & Jean | .2002 .2018 |
| 'Anna' | Light-Green | Marginal | White | Unknown | | | Heemskerk, Gerardus | --NR-- |
| 'Anna Boynton' | Med-Green | Medial | Yellow | Hybrid | Near-White | July | Heinke, Gretchen | .2005 |
| 'Anna Lindh' | Light-Green | Medial | White | Unknown | Med-Lavender | August to September | Kósa, Lehel | .2005 |
| 'Anna Mae' | Blue/Green | Marginal | Yellow | Unknown | Pale-Lavender | | Savory, Dennis | .2012 |
| 'Anna the Stripper' | Yellow | Streaked | Green | Unknown | | July into August | Barger, Bill & Anna | .2016 |
| 'Annabel Lee' | Dark-Green | | | Unknown | Light-Purple | | Scheer, Alttara | --NR-- |
| 'Anne' | Med-Green | Marginal | Creamy Yellow | Nat-Sport | Pale-Lavender | June into July | Heemskerk, Gerardus | .2005 |
| 'Ansty' | Blue/Green | | | Unknown | | | Simon, Dr Hans | --NR-- |
| 'Answered Prayers' | Med-Green | Medial | White | Unknown | | | Asch, Stuart | --NR-- |
| 'Antoinette' | Med-Green | Marginal | Yellow | Nat-Sport | Pale-Lavender | July | Kuk, Bob | .2000 |
| 'Aomori Gold' | Yellow | | | Nat-Sport | Deep-Purple | August to October | Muroya, Kimio & Zilis, Mark | .2009 |
| 'Aomori Gold Star' | Yellow | Marginal | Green | Nat-Sport | Light-Purple | August to September | Muroya, Kimio & Zilis, Mark | .2009 |
| 'Aomori Select' | Green | | | Nat-Sport | Light-Purple | July into August | Zilis, Mark | .2009 |
| 'Aomori Setting Sun' | Med-Green | Marginal | Yellow | Nat-Sport | Deep-Purple | August to October | Unknown | --NR-- |
| 'Apache' | Med-Green | Medial | Yellow | Nat-Sport | Med-Lavender | July into August | Wade, Van | --NR-- |
| 'Appalachian Spring' | Light-Green | | | Nat-Sport | Near-White | June into July | Malloy, Alex | .2004 |
| 'Apple Candy' | Med-Green | Marginal | Yellow | Nat-Sport | Pale-Lavender | July into August | van den Top, Jan | --NR-- |
| 'Apple Green' | Med-Green | | | Hybrid | Light-Purple | June into July | Anderson, Kenneth | .1982 |
| 'Apple Jack' | Blue/Green | | | Hybrid | | | Benedict, Dr Ralph (Herb) | --NR-- |
| 'Applegate' | Med-Green | Medial | White | Nat-Sport | Light-Purple | August to September | Summers, Alex | --NR-- |
| 'Aquamarine' | Blue/Green | | | Unknown | Med-Lavender | July into August | Gossett, Gary & Terra Nova Nurseries | --NR-- |
| 'Aquarius' | Light-Green | | | Hybrid | Med-Lavender | July | Husemann, Jim | .2009 |
| 'Arcade' | Med-Green | Medial | White | Unknown | | | Livingston, Ron | --NR-- |
| 'Archangel' | Light-Green | | | TC Sport | Pale-Lavender | July | Zilis, Mark | .2003 |
| 'Arctic Blast' | Blue/Green | | | Hybrid | Light-Purple | July | Carlson, Monty & Julie | --NR-- |
| 'Arctic Circle' | Med-Green | Marginal | White | Unknown | Pale-Lavender | July into August | Tompkins, Chet & Ruh, Peter & Jean | .2002 |
| 'Arctic Rim' | Blue/Green | Marginal | White | Nat-Sport | Pale-Lavender | July into August | Lydell, Ransom | .1993 |
| 'Arctic Sunset' | Light-Green | Streaked | Yellow | Nat-Sport | Med-Lavender | August to September | Ruh, Peter & Jean | .2005 |
| 'Ariel' | Dark-Green | | | Unknown | Pure-White | | Syre-Herz, Ursula | --NR-- |
| 'Aries' | Dark-Green | Medial | Yellow | Nat-Sport | Pale-Lavender | July | Husemann, Jim | .2012 |
| 'Aroma of Arbutus' | Light-Green | | | Unknown | Pure-White | August to September | Kwick, Charles | .2016 .2018 |
| 'Arten' | Blue/Green | | | Hybrid | Light-Purple | August | Livingston, Ron | --NR-- |
| 'Artist's Palette' | Med-Green | Marginal | White | Hybrid | Light-Purple | July into August | Kuk, Bob | .1986 |
| 'Aslan' | Med-Green | Streaked | Yellow | Nat-Sport | Pale-Lavender | July into August | Roozekrans, Andi | --NR-- |
| 'Aspen Blue' | Blue/Green | | | Nat-Sport | Near-White | June into July | Hawes, James | --NR-- |
| 'Aspen Breeze' | Yellow | Marginal | White | TC Sport | Pale-Lavender | | Scolnik, Patricia & Walek, Kevin | .2009 |
| 'Aspen Pride' | Yellow | Marginal | Green | Unknown | | | Benedict, Dr Ralph (Herb) | --NR-- |
| 'Aspen White' | Yellow | Marginal | White | Nat-Sport | Near-White | June into July | Brill, Kirk | --NR-- |
| 'ASPIRE' | Blue/Green | Medial | White | Nat-Sport | | June into July | Silvers, Bill | .2013 |
| 'At Attention' | Light-Green | | | Unknown | | August to September | Benedict, Dr R. (Herb) & Kuenster, Rod | .2010 |
| 'Athena' | Med-Green | Streaked | White | TC Sport | Pure-White | August | Hird, Bob | .2005 |
| 'Athletic Event' | Med-Green | Marginal | White | Nat-Sport | | July into August | Nyikos, Frank | .2008 |
| 'Atomic Elvis' | Light-Green | | | Hybrid | Med-Lavender | | Livingston, Ron | --NR-- |
| 'Atomic Elvis Blue' | Blue/Green | | | Hybrid | Light-Purple | August | Livingston, Ron | --NR-- |
| 'Atomic Mama' | Med-Green | | | Hybrid | Light-Purple | August | Livingston, Ron | --NR-- |
| 'Atomic Needle' | Med-Green | | | Hybrid | Pale-Lavender | | Livingston, Ron | --NR-- |
| 'Atypical Blonde' | Light-Green | | | Hybrid | Near-White | June into July | Kwick, Charles | .2017 |
| 'Audra's Expectations' | Blue/Green | Medial | White | TC Sport | Pure-White | June into July | Wilson, Audra | --NR-- |
| 'Audrey's Island' | Light-Green | Medial | Yellow | Nat-Sport | | June into July | Moore, Betty | .2016 |
| 'August Fire' | Blue/Green | Marginal | White | TC Sport | Light-Purple | August to September | Bergeron, Amy & Walters Gardens | .2008 |
| 'Augustus' | Green | Marginal | White | Hybrid | Pale-Lavender | July into August | Tylinski, Stan & Malloy, Alex | .2003 |
| 'Aunt Saphrona' | Blue/Green | | | Unknown | Near-White | July | Tompkins, Cynthia | --NR-- |
| 'Aurea' H. longipes | Yellow | | | Hybrid | Light-Purple | August to October | Unknown | --NR-- |
| 'Aureocinata' | Dark-Green | Marginal | White | Unknown | | | Unknown | --NR-- |
| 'Aureomaculata', H ventricosa | Yellow | Marginal | Dark Green | Nat-Sport | Light-Purple | July | AHS | .1987 |
| 'Aurora's Glow' | Med-Green | Marginal | Green | Nat-Sport | Med-Lavender | July into August | McHugh, Ed | .2012 |
| 'Austin Dickinson' | Med-Green | Marginal | Yellow | Hybrid | Light-Purple | August to October | Lachman, Wm & Eleanor | .1992 |
| 'Autumn Bouquet' | Dark-Green | | | Unknown | Med-Lavender | August to September | Unknown | --NR-- |
| 'Autumn Charm' | Med-Green | | | Hybrid | Pale-Lavender | September | Lachman, Wm & Eleanor | --NR-- |
| 'Autumn Ridge' | Med-Green | Marginal | White | Unknown | | | Goodwin, Randy | --NR-- |
| 'Autumn Sun' | Med-Green | | | Unknown | | | Unknown | --NR-- |
| 'Avalanche' | Med-Green | Marginal | Creamy White | Hybrid | Near-White | July into August | Goodwin, Randy | .2000 |
| 'Avalon Wild One' | Yellow | Marginal | Yellow | Unknown | | | Ricketts, Dennis | --NR-- |
| 'Aventurine' | Blue/Green | | | Unknown | | | Seaver, Mildred | --NR-- |
| 'Avery Angel' | Yellow | Marginal | White | Unknown | Pure-White | July into August | Tiffany, Barbara | .2005 |
| 'Awakening Angel' | Blue/Green | | | Hybrid | Light-Purple | July into August | Nyikos, Frank | .2005 |
| 'Ayesha' | Med-Green | Medial | Yellow | TC Sport | Pale-Lavender | July into August | van den Top, Jan | --NR-- |
| 'Azure Cherub' | Blue/Green | | | Unknown | Pale-Lavender | July into August | Ruh, Peter | .2002 |
| 'Azure Frills' | Blue/Green | | | Hybrid | Light-Purple | July into August | Zilis, Mark | .2010 |
| 'Azure Waves' | Blue/Green | | | Hybrid | Med-Lavender | July | Micheletti, Tom | .2011 |
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