| Cultivar Name | Plant Size | Origin | Flower Color | Season | Source | Registered |
| 'Back Light' | Large | Sport | Pale-Lavender | July | Unknown | --NR-- |
| 'Back Stage' | Medium | Hybrid | - | - | Woods, Doyle | --NR-- |
| 'Baja Sunset' | Large | Sport | - | - | Livingston, Ron | --NR-- |
| 'Bali-Hai' | Miniature | Hybrid | - | June into July | Scroggy, Ian | .2009 |
| 'Banana Kid' | Medium | Sport | Pale-Lavender | July into August | Heemskerk, Gerardus | .2014 |
| 'Banana Puddin' | Miniature | Hybrid | Pale-Lavender | June into July | Avent, Tony | .2005 |
| 'Barbara White' | Medium | Hybrid | Near-White | June into July | Bond, Sandra | .1990 |
| 'Beautiful Bev' | Medium | Unknown | - | - | Asch, Stuart | --NR-- |
| 'Becca' | Medium | Hybrid | Near-White | June into July | Kwick, Charles | .2017 |
| 'Belinda' | Large | Hybrid | Near-White | June | Willett, Lance & Simmering, Ron | .2003 |
| 'Benediction' | Large | Unknown | Pale-Lavender | July | Lysne, Rod | .2006 |
| 'Bengee' | Medium | Hybrid | Pale-Lavender | June into July | Harrison, Dr Jamison & Ruh, Peter | .1999 |
| 'Benji's Gold' | Medium | Hybrid | Near-White | June into July | Blake, Amanda | .2013 |
| 'BFF' | Small | Sport | Pale-Lavender | June into July | Schwarz, Jim & Zilis, Mark | .2012 |
| 'Bibb Lettuce' | Small | Unknown | - | - | Asch, Stuart | --NR-- |
| 'Big Bird' | Medium | Unknown | - | - | Ziarek, Ken | --NR-- |
| 'Big Dipper' | Large | Hybrid | Near-White | June into July | Kuk, Bob | .1995 |
| 'Big John's Gold' | Large | Sport | - | - | Unknown | --NR-- |
| 'Big Strappy' | Large | Unknown | - | - | Unknown | --NR-- |
| 'Birchwood Gold' | Medium | Unknown | Pale-Lavender | June into July | Shaw, Florence | .1986 |
| 'Birchwood Parky's Gold' | Medium | Hybrid | Pale-Lavender | July | Shaw, Florence | .1986 |
| 'Birdbeak' | Medium | Hybrid | Pale-Lavender | August | Carlson, Monty & Carlson, Julie | .2009 |
| 'Birthday Candles' | Medium | Hybrid | Pale-Lavender | June into July | Teager, David | .2017 |
| 'Biscuits-n-Honey' | Medium | Hybrid | Pale-Lavender | July | Solberg, Robert & Middle Tennessee Hosta Society | .2019 |
| 'Bitsy Gold' | Small | Hybrid | Pale-Lavender | - | Savory, Robert | .1985 |
| 'Bitter Lemons' | Small | Unknown | Light-Purple | July | Schulte, Steve | --NR-- |
| 'Blast Off' | Large | Hybrid | Pale-Lavender | July | Benedict, Dr Ralph (Herb) & Benedict, Dorothy | .1995 |
| 'Blaze of Glory' | Large | Hybrid | Near-White | - | Elslager, Ed | .1999 |
| 'Bleached Canvas' | Large | Unknown | - | - | Seaver, Charles | --NR-- |
| 'Blonde Elf' | Small | Sport | Light-Purple | July | Aden, Paul & Zilis, Mark | .2010 |
| 'Blondie' | Large | Hybrid | - | - | Harshbarger, Gretchen | .1982 |
| 'Blood, Sweat and Tears' | Small | Hybrid | Pale-Lavender | July | Dean, Don | .2000 |
| 'Blue Ann Gold' | Large | Sport | Pale-Lavender | July into August | Unknown | --NR-- |
| 'Bluffview Emma Rose' | Giant | Unknown | - | - | Kniffin, Brian & Miller, Jeff | --NR-- |
| 'Bohemia Yellow Corvette' | Medium | Hybrid | Pale-Lavender | July into August | Mirka, Vladimir | .2017 |
| 'Bold and Brassy' | Large | Unknown | Pale-Lavender | June into July | Seaver, Mildred & Walek, Kevin | .2009 |
| 'Boyz Toy' | Miniature | Unknown | Light-Purple | June into July | Scheer, Alttara | --NR-- |
| 'Brazen Hussy' | Giant | Hybrid | Pale-Lavender | June into July | Duback, Robyn | .2000 |
| 'Bright Eagle' | Large | Unknown | Pale-Lavender | July into August | Lydell, Ransom | .1998 |
| 'Bright Glow' | Small | Hybrid | Pure-White | June into July | Aden, Paul | .1986 |
| 'Bright-eyed Ellie' | Medium | Hybrid | Near-White | June into July | Whitmer, Milt | .2016 |
| 'Bri-Sun' | Medium | Unknown | - | July into August | McHugh, Ed | .2015 |
| 'Brocade' | Small | Hybrid | Near-White | September | Goodwin, Randy | .2013 |
| 'Bubblicious' | Medium | Unknown | Near-White | - | Hackbarth, Robert | .2015 |
| 'Buffalo Amber Waves' | Miniature | Sport | - | August to September | Zubrik, Milan & Zubrik, Dana | .2016 |
| 'Bumblebee' | Medium | Hybrid | Pure-White | July | Savory, Dennis | .2000 |
| 'Burnished Brass' | Medium | Unknown | - | June into July | Tompkins, Chet & Walek, Kevin | .2009 |
| 'Buster' | Medium | TC Sport | Pale-Lavender | July into August | Zilis, Mark | .2009 |
| 'Butter Cream' | Medium | Hybrid | - | - | Balitewicz, Bob | --NR-- |
| 'Butter Yellow' | Large | Unknown | Pale-Lavender | June into July | Vaughn, Kevin | .1982 |
| 'Buttercrunch' | Medium | Unknown | - | - | Dean, Don | --NR-- |
| 'Buttercup' | Large | Hybrid | - | - | Benedict, Dr Ralph (Herb) | --NR-- |
| 'Buttercup Baby' | Miniature | Unknown | - | June into July | Wasitis, Chick | .2014 |
| 'Butterscotch Ripple' | Large | Unknown | - | - | Sawyer, Rick | --NR-- |
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