| Rating | Plant | Thumbnail |
| Formal Decorative Dahlia 'B-Man'
Dahlia |  |
| Informal Decorative Dahlia 'Baarn Bounty'
Dahlia
Hybridized by Bruidegom, 1974 |  |
| Dinner Plate Dahlia, Informal Decorative Dahlia 'Babylon Bronze'
Dahlia |  |
| Dinner Plate Dahlia, Formal Decorative Dahlia 'Babylon Flamed'
Dahlia | |
 | Dinner Plate Dahlia, Formal Decorative Dahlia 'Babylon Purple'
Dahlia |  |
| Dinner Plate Dahlia, Formal Decorative Dahlia 'Babylon Red'
Dahlia | |
| Dahlia Babylon Rose 'Babylon Rose'
Dahlia | |
| Informal Decorative Dahlia 'Bahama Mama'
Dahlia
Hybridized by Gitts, 2006 |  |
| Decorative Dahlia 'Bahama Red'
Dahlia | |
| Decorative Dahlia 'Bahamas'
Dahlia
Hybridized by Knudsen, 2004
Additional info: (PP16085, aka DalinaŽ Midi series) | |
| Decorative Dahlia 'Bali'
Dahlia
Additional info: (aka DalinaŽ Midi series) | |
| Laciniated Dahlia 'Ballerina'
Dahlia |  |
| Decorative Dahlia 'Balsas'
Dahlia
Hybridized by Ruigrok-van Haaster, 2001
Additional info: (PP12832, DahlinovaŽ Longlife series) | |
| Decorative Dahlia 'Balthasar'
Dahlia | |
| Mignon Single Dahlia 'Bambino'
Dahlia variabilis
Hybridized by Topsvoort, 1955 | |
| Decorative Dahlia 'Banana Rama'
Dahlia |  |
| Waterlily Dahlia 'Barbados'
Dahlia
Additional info: (aka DalinaŽ Midi series) | |
| | Formal Decorative Dahlia 'Barbarossa'
Dahlia
Hybridized by Carlee, 1936 |  |
| | Ball Dahlia 'Barbarry Ball'
Dahlia
Hybridized by Davies, 1991 |  |
| Formal Decorative Dahlia 'Barbarry Cracker'
Dahlia
Hybridized by Davies, 2006 |  |
| Formal Decorative Dahlia 'Barbarry Dominion'
Dahlia
Hybridized by Davies, 1989 |  |
| Formal Decorative Dahlia 'Barbarry Fusilier'
Dahlia
Hybridized by Davies, 2005 |  |
| Ball Dahlia 'Barberry Atlantean'
Dahlia
Hybridized by Davies, 1994 |  |
| Formal Decorative Dahlia 'Baron Norma'
Dahlia
Hybridized by Miner, 2008 |  |
| Single Flowered Border Dahlia 'Bashful'
Dahlia
Hybridized by Gitts, 1999 |  |
 | Novelty Dahlia 'Be A Sport'
Dahlia
Hybridized by Swan Island, 1994 |  |
| | Waterlily Dahlia 'Bea Paradise'
Dahlia |  |
| | Waterlily Dahlia 'Bea Paradise'
Dahlia
Hybridized by Paradise, 2003 |  |
| Decorative Dahlia 'Beaucon White'
Dahlia |  |
| Straight Cactus Dahlia 'Becky'
Dahlia
Additional info: (Surprise series) |  |
| Incurved Cactus Dahlia 'Bed Head'
Dahlia
Hybridized by Gitts, 2005 |  |
| Dahla 'Bednall Beauty'
Dahlia | |
| Single Flowered Border Dahlia 'Bee Happy'
Dahlia |  |
| Anemone Flowered Dahlia 'Bee Mine'
Dahlia |  |
| | Decorative Dahlia 'Belle of Barmera'
Dahlia |  |
| | Cactus Dahlia 'Berger's Record'
Dahlia
Hybridized by Berger, 2005 |  |
| | Border Dahlia, Decorative Dahlia 'Berliner Kleene'
Dahlia
Hybridized by Severin, 1967 |  |
| Formal Decorative Dahlia 'Bernadette Castro'
Dahlia
Hybridized by Nowotarski, 2003 |  |
| Semi Cactus Dahlia 'Berner Oberland'
Dahlia
Hybridized by Geerlings, 1979 |  |
| Informal Decorative Dahlia 'Bert Pitt'
Dahlia
Hybridized by Palminteri, 1974 |  |
