Boca Blue requires research.
Bois de Villée requires research.
Canna 'Bonetti' is a giant Foliage Group cultivar, with green leaves and orange flowers.
Bonfire is a synonym of indica var. coccinea (Mill.) Aiton.
Canna 'Bonnet' is a medium-sized Crozy Group cultivar, with green leaves and yellow flowers.
Canna 'Bonnezeaux' is a medium-sized Crozy Group cultivar, with green leaves and yellow flowers.
Canna 'Borneo' is a medium-sized Premier Group cultivar, with dark leaves and pink flowers.
Borussia requires research.
Botanique requires research.
Canna 'Bounty' is a medium-sized Crozy Group cultivar, with green leaves and yellow flowers.
Bourcier requires research.
Canna 'Brandywine' is a medium-sized Crozy Group cultivar, with dark leaves and red flowers.
Canna 'Brandywine (2)' is a small Conservatory Group cultivar, with green leaves and red flowers.
Canna 'Braunt Orange' is a small cultivar, with green leaves and red flowers.
Braunti requires research.
Brazillian is a synonym of indica var. indica.
Breauté requires research.
Canna 'Brenda Elaine' is a medium-sized Crozy Group cultivar, with green leaves and pink flowers.
Canna 'Breuil' is a medium-sized Crozy Group cultivar, with green leaves and red flowers.
Brick is a synonym of discolor var. discolor (Lindl.) Nb.Tanaka.