| Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
| 'Bachelor Party' | Medium | Med-Green | Marginal | White | Sport | Deep-Purple | July | Zilis, Mark & Schwarz, Jim | .2011 |
| 'Bali-Hai' | Miniature | Yellow | - | - | Hybrid | - | June into July | Scroggy, Ian | .2009 |
| 'Barbarossa' | Small | Med-Green | - | - | Hybrid | Pale-Lavender | August to September | Malloy, Alex | .2002 |
| 'Batman' | Medium | Blue/Green | Streaked | White | Hybrid | - | - | White, Jeff | --NR-- |
| 'Beach Party' | Large | Blue/Green | - | - | TC Sport | Near-White | July into August | Zilis, Mark | .2009 |
| 'Beam Me Up Scotty' | Large | Dark-Green | Streaked | White | Sport | Pale-Lavender | July into August | Schwarz, Jim | .2012 |
| 'Beautiful Dreamer' (Asch) | Large | Dark-Green | Medial | Yellow | Unknown | Near-White | | Asch, Stuart | --NR-- |
| 'Beautiful Dreamer' (Ward) | Medium | Med-Green | Marginal | White | Hybrid | - | June into July | Ward, Dr Dick & Ward, Jane | .2010 |
| 'Bedazzled' | Small | Blue/Green | Marginal | Creamy White | Hybrid | Pale-Lavender | July | Goodwin, Randy | .1999 |
| 'Ben' | Giant | Med-Green | - | - | Unknown | - | July into August | Zilis, Mark & Schwarz, Jim | .2015 |
| 'Ben Hur' | Medium | Med-Green | - | - | Sport | Pale-Lavender | July | Malloy, Alex | --NR-- |
| 'Bette Davis Eyes' | Medium | Med-Green | - | - | Hybrid | Pale-Lavender | August | Vaughn, Kevin | .1987 |
| 'Beyond Glory' | Large | Dark-Green | Medial | Yellow | TC Sport | Light-Purple | July | Hansen, Hans & Walters Gardens | .2018 |
| 'Big Chance' | Large | Blue/Green | - | - | Unknown | Near-White | June into July | Unknown | --NR-- |
| 'Birth of the Blues' | Large | Blue/Green | Streaked | Yellow | Hybrid | Pale-Lavender | June into July | Elslager, Ed | .2005 |
| 'Black Beauty' | Medium | Dark-Green | - | - | Hybrid | Pale-Lavender | July into August | Carpenter, Kate | .1984 |
| 'Black Pearl' | Medium | Dark-Green | - | - | Hybrid | Med-Lavender | June into July | Cross, Peter | .2001 |
| 'Black Thunder' | Large | Dark-Green | Medial | White | Sport | Pale-Lavender | July into August | Schwarz, Jim & Schwarz, Karen & Zilis, Mark | .2014 |
| 'Black Velvet' | Small | Med-Green | Marginal | Creamy White | Unknown | Light-Purple | July | Benedict, Dr Ralph (Herb) | --NR-- |
| 'Blade Runner' | Small | Med-Green | Marginal | Greenish White | Unknown | Pale-Lavender | July into August | Taylor, Richard & Walek, Kevin | .2009 |
| 'Blaze of Glory' | Large | Yellow | - | - | Hybrid | Near-White | - | Elslager, Ed | .1999 |
| 'Blazing Saddles' | Large | Med-Green | Marginal | White | Hybrid | Light-Purple | July into August | Avent, Tony | .2000 |
| 'Blind Date' (Meyer) | Large | Med-Green | Streaked | Yellow | Unknown | - | - | Meyer, Bill | --NR-- |
| 'Blind Date' (Ward) | Large | Light-Green | Marginal | Yellow | Hybrid | Near-White | June into July | Ward, Dr Dick & Ward, Jane | .2011 |
| 'Blockbuster' | Giant | Med-Green | Streaked | Speckles | Hybrid | Pale-Lavender | July into August | Elslager, Ed | .2003 |
| 'Blondie' | Large | Yellow | - | - | Hybrid | - | - | Harshbarger, Gretchen | .1982 |
| 'Bloody Mary' | Large | Med-Green | - | - | Hybrid | Deep-Purple | August | Sugita, Hajime & Ruh, Peter | .1999 |
| 'Blue Angel' | Giant | Blue/Green | - | - | Hybrid | Pure-White | - | Shaw, Florence | .1986 |
| 'Blue Beard' | Miniature | Blue/Green | - | - | Unknown | Near-White | July into August | Benedict, Dr Ralph (Herb) | --NR-- |
| 'Blue Hawaii' | Giant | Blue/Green | - | - | Hybrid | Light-Purple | July | Petryszyn, Olga | .1999 |
| 'Blue Lady' (Fisher) | Small | Blue/Green | - | - | Unknown | Light-Purple | July | Fisher, Eunice V. | .1998 |
| 'Blue Lagoon' | Medium | Blue/Green | - | - | Hybrid | Near-White | - | Woodroffe, Fleeta Brownell | .1972 |
| 'Blue Max' | Large | Blue/Green | - | - | Hybrid | Pure-White | July | Ruh, Peter | .1998 |
| 'Blue Valentine' | Small | Blue/Green | - | - | Unknown | - | - | Benedict, Dr Ralph (Herb) & Kuenster, Rod & The American Hosta Society | .2010 |
| 'Blue Veil' | Large | Blue/Green | - | - | Sport | Pale-Lavender | July into August | Aden, Paul & Ruh, Peter | .2010 |
| 'Blues in the Night' | Large | Dark-Green | Streaked | Yellow | Hybrid | Pale-Lavender | June into July | Elslager, Ed | .2004 |
| 'Blythe Spirit' | Medium | Med-Green | - | - | Unknown | Pale-Lavender | August to October | Schenk, George & Ruh, Peter | .1990 |
| 'Body and Soul' | Large | Med-Green | Marginal | White | Hybrid | Pale-Lavender | July | Ward, Dr Dick & Ward, Jane | .2014 |
| 'Bogie and Bacall' | Medium | Med-Green | Marginal | White | Hybrid | Pale-Lavender | August to September | Beilstein, Doug & Zilis, Mark | .2009 |
| 'Bohemia Charles Emerald' | Medium | Dark-Green | | | Unknown | | | Mirka, Vladimir | --NR-- |
| 'Bohemia Flash Gordon' | Large | Dark-Green | Streaked | White | Unknown | | | Mirka, Vladimir | --NR-- |
| 'Bohemia Helter Skelter' | Medium | Med-Green | Streaked | Yellow | Unknown | | | Mirka, Vladimir | --NR-- |
| 'Bohemia Shere Khan' | Medium | Med-Green | Streaked | Yellow | Unknown | | | Mirka, Vladimir | --NR-- |
| 'Bolero' (Malloy) | Small | Med-Green | Streaked | Yellow | Unknown | - | - | Malloy, Alex | --NR-- |
| 'Bolero' (Ziarek) | Large | Blue/Green | | | Unknown | | | Ziarek, Ken | --NR-- |
| 'Bolero Dancer' | | | | | Unknown | | | Balitewicz, Bob | --NR-- |
| 'Boogie Man' | Large | Blue/Green | - | - | Unknown | - | - | Woszczyna, Tom | --NR-- |
| 'Boots and Saddles' | Medium | Yellow | Marginal | Blue-Green | Sport | Near-White | June into July | Minks, Eldren | .1983 |
| 'Border Bandit' | Medium | Dark-Green | Marginal | Yellow | Hybrid | Light-Purple | August | Lachman, Wm & Lachman, Eleanor | .1992 |
| 'Border Street' | Large | Dark-Green | Marginal | White | Hybrid | Pale-Lavender | June into July | Van Eechaute, Danny | .2008 |
| 'Born Again' | Medium | Med-Green | Medial | White | Sport | Med-Lavender | July | Hawes, James | --NR-- |
| 'Born Free' | - | - | - | - | Unknown | - | - | Unknown | --NR-- |
| 'Bounty' | Small | Blue/Green | Medial | White | Sport | Med-Lavender | July into August | Van Eechaute, Danny | .2015 |
| 'Braveheart' | Medium | Dark-Green | - | - | TC Sport | Pale-Lavender | August | Wasitis, Chick | --NR-- |
| 'Breathless' | Medium | Blue/Green | - | - | Hybrid | Pale-Lavender | July | Lydell, Ransom & Walek, Kevin | .2009 |
| 'Briar Patch' | Miniature | Blue/Green | - | - | Unknown | - | - | Goodwin, Randy | .2014 |
| 'Bright Star' | Small | Med-Green | Marginal | White | Sport | Pale-Lavender | July into August | Van den Top, Jan | --NR-- |
| 'Brilliance' | Large | Med-Green | Streaked | Yellow | Hybrid | Near-White | July | Elslager, Ed | .2001 |
| 'Buck Rogers' | Medium | Med-Green | Marginal | Yellow | Unknown | - | - | Malloy, Alex | --NR-- |
| 'Buckaroo' | Medium | Med-Green | - | - | Unknown | - | June into July | Duncan, Mary Jo | .2014 |
| 'Buffalo Bill' | Large | Blue/Green | - | - | Sport | Near-White | June into July | Zubrik, Milan & Zubrik, Dana | .2014 |
| 'Burlesque' | Medium | Blue/Green | Streaked | White | Sport | Pale-Lavender | July into August | Ritchey, Allen | .2015 |
| 'Buster' | Medium | Yellow | - | - | TC Sport | Pale-Lavender | July into August | Zilis, Mark | .2009 |
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