Butter Ball requires research.
Butter Snap requires research.
Canna 'Buttercup' is a small Crozy Group cultivar, with green leaves and yellow flowers.
Canna 'Butterfly Kisses' is a medium-sized aquatic cultivar, equally at home as a water marginal or in the border, with green leaves and pink flowers.
Canna 'Butterscotch' is a small Crozy Group cultivar, with green leaves and yellow flowers.