| Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
| 'Baby Kim' | Miniature | Med-Green | - | - | Unknown | Light-Purple | July | Hauser, J. & Walek, Kevin | .2009 |
| 'Baby Liv' | - | Light-Green | - | - | Hybrid | - | - | Lambrichts, Johann | --NR-- |
| 'Barbara' | Medium | Blue/Green | - | - | Unknown | Light-Purple | July | Stone, David & Ruh, Peter | .1987 |
| 'Barbara AMH' | Large | Med-Green | - | - | Unknown | - | June into July | Bastille, Jocelyne | --NR-- |
| 'Barbara Ann' | Large | Blue/Green | Marginal | White | Sport | Pure-White | June into July | Munton's Microplants | --NR-- |
| 'Barbara May' | Medium | Blue/Green | - | - | Hybrid | Pale-Lavender | July into August | Solberg, Robert | .2004 |
| 'Barnie' | - | - | - | - | Duplicate | - | - | Duplicate Name | --NR-- |
| 'Barry's Return' | - | - | - | - | Unknown | - | - | Sligh, Barry | --NR-- |
| 'Bashful Polly' | Medium | Yellow | Streaked | Green | Hybrid | Near-White | June into July | Benedict, Dr Ralph (Herb) & Kuenster, Rod | .2010 |
| 'Beam Me Up Scotty' | Large | Dark-Green | Streaked | White | Sport | Pale-Lavender | July into August | Schwarz, Jim | .2012 |
| 'Bea's Colossus' | Large | Med-Green | - | - | Unknown | Pale-Lavender | June into July | Tompkins, Chet & Ruh, Peter | .2000 |
| 'Bea's Heartstrings' | Small | Med-Green | - | - | Unknown | - | June into July | Artley, A. | .2015 |
| 'Beatrice' | Small | Med-Green | Streaked | White | Hybrid | Deep-Purple | July | Williams, Frances | --NR-- |
| 'Beatrice Breeder' | Medium | Dark-Green | Streaked | White | Sport | Pale-Lavender | July into August | Zumbar, Wm & Walek, Kevin | .2009 |
| 'Beatrice Green' | Medium | Med-Green | - | - | Sport | Deep-Purple | July | Bond, Sandra | --NR-- |
| 'Beatrice Variegated' | Medium | Dark-Green | Streaked | White | Sport | Light-Purple | July | Williams, Frances | --NR-- |
| 'Beaulah' | Small | Med-Green | Marginal | Yellow | Unknown | Light-Purple | August | Stone, David & Ruh, Peter | .1988 |
| 'Beautiful Bev' | Medium | Yellow | - | - | Unknown | - | - | Asch, Stuart | --NR-- |
| 'Because of Art' | Medium | Dark-Green | - | - | Hybrid | Pale-Lavender | September | Finke, Chuck & Ternes, Nick | .2018 |
| 'Becca' | Medium | Yellow | - | - | Hybrid | Near-White | June into July | Kwick, Charles | .2017 |
| 'Becky Bee' | Medium | Light-Green | | - | Unknown | - | - | Unknown | --NR-- |
| 'Becky Sue' | Medium | Blue/Green | - | - | Unknown | - | - | Unknown | --NR-- |
| 'Becky's Choice' | Medium | Blue/Green | - | - | Hybrid | - | July into August | Zilis, Mark | .2010 |
| 'Belinda' | Large | Yellow | - | - | Hybrid | Near-White | June | Willett, Lance & Simmering, Ron | .2003 |
| 'Belle Vernon Beauty' | Giant | Med-Green | - | - | Hybrid | Pale-Lavender | June into July | Zolock, Steve & Zolock, Sarah | .2011 |
| 'Belle Vernon Pride' | Large | Blue/Green | - | - | Unknown | Med-Lavender | August to September | Zolock, Steve & Zolock, Sarah | .2008 |
| 'Ben' | Giant | Med-Green | - | - | Unknown | - | July into August | Zilis, Mark & Schwarz, Jim | .2015 |
| 'Benedict' | Small | Med-Green | - | - | Sport | Pale-Lavender | - | Gowen, Hideko | --NR-- |
| 'Bengee' | Medium | Yellow | - | - | Hybrid | Pale-Lavender | June into July | Harrison, Dr Jamison & Ruh, Peter | .1999 |
| 'Benjamin William' | Small | Yellow | | | Unknown | | | Owens, Clarence | --NR-- |
| 'Benji's Gold' | Medium | Yellow | - | - | Hybrid | Near-White | June into July | Blake, Amanda | .2013 |
| 'Betsy' | Giant | Blue/Green | - | - | Hybrid | Near-White | - | Parks, David | --NR-- |
| 'Betsy Bunting' | - | - | - | - | Duplicate | - | - | Duplicate Name | --NR-- |
| 'Betty' | Small | Med-Green | - | - | Hybrid | Pale-Lavender | July into August | Benedict, Dr Ralph (Herb) | .1983 |
| 'Betty Darling' | Small | Blue/Green | Streaked | White | Unknown | Light-Purple | - | Owens, Clarence | .1989 |
| 'Betty's Glory' | Large | Med-Green | Medial | Yellow | Sport | Pure-White | June into July | Mitchell, J. | .2014 |
| 'Bev and Dave' | Large | Med-Green | Streaked | Yellow | Sport | Near-White | June into July | Skaggs, Virginia & Skaggs, Brian | --NR-- |
| 'Bianca' | Medium | Med-Green | - | - | Unknown | - | - | Pagels, Ernst | --NR-- |
| 'Big Al' | Small | Blue/Green | - | - | Unknown | - | - | Cullerton, Walter | --NR-- |
| 'Big Bad John' | Large | Dark-Green | Marginal | Yellow | Hybrid | Pale-Lavender | June into July | Elslager, Ed | .2005 |
| 'Big Bubba' | Giant | Med-Green | - | - | Hybrid | Near-White | June into July | Hanna, Clarence | .2018 |
| 'Big Fred' | Giant | Blue/Green | Marginal | Yellow | Hybrid | - | - | Benedict, Dr Ralph (Herb) | --NR-- |
| 'Big Fred Zach' | - | - | - | - | Unknown | - | - | Unknown | --NR-- |
| 'Big Gary' | Giant | Blue/Green | - | - | Unknown | Near-White | June into July | Larsen, Kim | .2009 |
| 'Big John' | Giant | Med-Green | - | - | Hybrid | Near-White | June into July | Owens, Clarence | .1986 |
| 'Big John's Brother' | Giant | Blue/Green | - | - | Unknown | - | - | Unknown | --NR-- |
| 'Big John's Gold' | Large | Yellow | - | - | Sport | - | - | Unknown | --NR-- |
| 'Big Mike' | Large | Blue/Green | - | - | Hybrid | - | - | Summers, Alex | --NR-- |
| 'Big Mo' | Giant | Blue/Green | - | - | Hybrid | Pale-Lavender | - | Stephens, Ray | .1990 |
| 'Big Old Bob' | Giant | Blue/Green | - | - | Hybrid | Near-White | July | Zolock, Steve & Zolock, Sarah | .2005 |
| 'Big Old Teddy Bear' | Giant | Blue/Green | - | - | Unknown | Near-White | June into July | Schulz, Ed | .2017 |
| 'Big Pete' | Large | Blue/Green | - | - | Hybrid | - | - | Summers, Alex | --NR-- |
| 'Big Sam' | Giant | Med-Green | - | - | Hybrid | Pale-Lavender | - | Klopping, Minnie | .1986 |
| 'Big Zach' | Large | Blue/Green | - | - | Hybrid | Near-White | July | Jones, Leonard | .2002 |
| 'Bigga Luigi' | Giant | Blue/Green | - | - | TC Sport | Near-White | June into July | Kuk, Bob | .2002 |
| 'Bigga Luigi Splash' | Large | Blue/Green | Streaked | White | Sport | Pale-Lavender | June | Kuk, Bob | --NR-- |
| 'Bill and Eleanor' | Large | Dark-Green | Medial | Yellow | Unknown | Med-Lavender | July into August | Lachman, Eleanor & Schmid, Tom | .2001 |
| 'Bill's White Back' | - | - | - | - | Unknown | - | - | Unknown | --NR-- |
| 'Billy Bob Angel' | Large | Dark-Green | - | - | Hybrid | - | June into July | Zilis, Mark | .2010 |
| 'Black Jack Chew' | Medium | Dark-Green | - | - | TC Sport | Light-Purple | July | Schwarz, Jim | .2005 |
| 'Blondie' | Large | Yellow | - | - | Hybrid | - | - | Harshbarger, Gretchen | .1982 |
| 'Bloody Mary' | Large | Med-Green | - | - | Hybrid | Deep-Purple | August | Sugita, Hajime & Ruh, Peter | .1999 |
| 'Blue Ann Gold' | Large | Yellow | - | - | Sport | Pale-Lavender | July into August | Unknown | --NR-- |
| 'Blue Beau' | Medium | Blue/Green | - | - | Unknown | - | - | Aden, Paul | --NR-- |
| 'Blue Belle' | Large | Blue/Green | - | - | Unknown | Light-Purple | July into August | Smith, Eric & British Hosta and Hemerocallis Society | .1988 |
| 'Blue Betty Lou' | Large | Blue/Green | - | - | Hybrid | Pale-Lavender | July | Owens, Clarence | .1987 |
| 'Blue Dorothy' | Large | Blue/Green | | | Unknown | | | Kuenster, Rod | --NR-- |
| 'Blue Max' | Large | Blue/Green | - | - | Hybrid | Pure-White | July | Ruh, Peter | .1998 |
| 'Blue Sanders' | Large | Blue/Green | Streaked | Yellow | Hybrid | - | - | Livingston, Ron | --NR-- |
| 'Bluffview Emma Rose' | Giant | Yellow | - | - | Unknown | - | - | Kniffin, Brian & Miller, Jeff | --NR-- |
| 'Bob' | Giant | Dark-Green | - | - | Hybrid | - | - | Avent, Tony | --NR-- |
| 'Bob the Builder' | Medium | Blue/Green | - | - | Sport | Pure-White | June into July | Schwarz, Jim | .2009 |
| 'Bobbie Sue' | Large | Blue/Green | Marginal | White | Sport | Pale-Lavender | July into August | Owens, Clarence | .1994 |
| 'Bob's Perfection' | - | Med-Green | - | - | Unknown | - | - | Unknown | --NR-- |
| 'Bohemia Charles Emerald' | Medium | Dark-Green | | | Unknown | | | Mirka, Vladimir | --NR-- |
| 'Bohemia Charles Throne' | Large | Blue/Green | Marginal | Yellow | Unknown | | | Mirka, Vladimir | --NR-- |
| 'Bohemia Doug's Dirk' | Medium | Med-Green | Marginal | White | Unknown | | | Mirka, Vladimir | --NR-- |
| 'Bohemia Flash Gordon' | Large | Dark-Green | Streaked | White | Unknown | | | Mirka, Vladimir | --NR-- |
| 'Bohemia King Charles' | Large | Blue/Green | | | Unknown | | | Mirka, Vladimir | --NR-- |
| 'Bohemia Quill Bill' | Medium | Med-Green | - | - | Hybrid | Med-Lavender | July into August | Mirka, Vladimir | .2017 |
| 'Bojangles' | Medium | Med-Green | Marginal | White | Hybrid | Pale-Lavender | August to October | Dean, Don | .1999 |
| 'Bonnie' | Large | Blue/Green | - | - | Unknown | Near-White | June into July | Stone, David & Ruh, Peter | .1987 |
| 'Bonnie's Bounty' | Medium | Dark-Green | Marginal | Blue-Green | Unknown | Med-Lavender | July into August | Treichel, Bernie | .2000 |
| 'Boris' | Large | Dark-Green | | | Unknown | | | Ziarek, Ken | --NR-- |
| 'Brady' | Medium | Dark-Green | Marginal | White | Hybrid | - | July into August | Graves, Butch | .2016 |
| 'Branden' | - | - | - | - | Unknown | - | - | Uniquely Hostas | --NR-- |
| 'Brandi Nicole' | Medium | Med-Green | Medial | White | Sport | Near-White | July | Daughenbaugh, Walt | .2002 |
| 'Brenda and Dean' | | - | | - | Unknown | - | - | Unknown | --NR-- |
| 'Brent' | Large | Med-Green | - | - | Unknown | Near-White | June into July | Wade, Van | --NR-- |
| 'Brianna T.' | Medium | Med-Green | Streaked | Speckles | Sport | Light-Purple | July into August | Barger, Bill & Barger, Anna | .2016 |
| 'Brigham Blue' (Ruh) | Medium | Blue/Green | - | - | Unknown | Pale-Lavender | July into August | Ruh, Peter | .2002 |
| 'Bright-eyed Ellie' | Medium | Yellow | - | - | Hybrid | Near-White | June into July | Whitmer, Milt | .2016 |
| 'Brodie's Bonanza' | Small | Light-Green | - | - | Hybrid | Pale-Lavender | September | Goodwin, Randy | .2013 |
| 'Brooke' | Large | Med-Green | - | - | Unknown | Pale-Lavender | July | Stone, David & Ruh, Peter | .1987 |
| 'Brother Jack' | Medium | Dark-Green | - | - | Unknown | Light-Purple | August | Kwick, Charles | .2017 |
| 'Brother Ronald' | Medium | Blue/Green | - | - | Unknown | Pure-White | July into August | Smith, Eric & British Hosta and Hemerocallis Society | .1988 |
| 'Brother Stefan' | Large | Yellow | Marginal | Greenish White | Hybrid | Pure-White | June into July | Petryszyn, Olga | .1998 |
| 'Bruce' | Small | Med-Green | - | - | Unknown | Med-Lavender | June into July | Stone, David & Ruh, Peter | .2002 |
| 'Bruce's Blue' | Medium | Blue/Green | - | - | Unknown | Pale-Lavender | July | Briggs Nursery-MA | .1991 |
| 'Brutus' | Giant | Med-Green | - | - | Hybrid | Light-Purple | July into August | Beilstein, Doug | .2007 |
| 'Bryce' | Medium | Med-Green | - | - | Unknown | Med-Lavender | August to September | Tompkins, Chet & Ruh, Peter | .2002 |
| 'Bryce David' | Large | Dark-Green | Marginal | Yellow | Unknown | - | - | Axmear, Bob | --NR-- |
| 'Bubba' | Small | Med-Green | - | - | Hybrid | Pale-Lavender | June into July | Avent, Tony | .1998 |
| 'Bud Lite' | Large | Med-Green | - | - | Hybrid | - | - | Beilstein, Doug & Beilstein, Mardy & Rogers, Floyd | .2017 |
| 'Buffy' | Large | Blue/Green | - | - | Hybrid | Pale-Lavender | July into August | Weissenberger, Henry | .1986 |
| 'Buster' | Medium | Yellow | - | - | TC Sport | Pale-Lavender | July into August | Zilis, Mark | .2009 |
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