Charmion requires research.
Canna 'Chatei discolor' is a tall Foliage Group cultivar, with dark leaves and red flowers.
Canna 'Chatei grandis' is a giant Foliage Group cultivar, with dark leaves and red flowers.
Canna 'Chaumes' is a small Premier Group cultivar, with green leaves and yellow flowers.
Chautauqua requires research.
Canna 'Cheerfulness' is a medium-sized Crozy Group cultivar, with green leaves and orange flowers.
Canna 'Chelsea' is a small Premier Group cultivar, with green leaves and yellow flowers.
Canna 'Cherokee' is a medium-sized Crozy Group cultivar, with green leaves and red flowers.
Canna 'Cherry Margarita' is a medium-sized Crozy Group cultivar, with green leaves and red flowers.
Canna 'Cherry Red' is a medium-sized Crozy Group cultivar, with green leaves and red flowers.
Cherry Splash requires research.
Cherub requires research.
Canna 'Chesapeake' is a medium-sized Conservatory Group cultivar, with green leaves and white flowers.
Cheshunt Yellow requires research.
Chevalier Besson requires research.
Canna 'Chevreuil' is a small Crozy Group cultivar, with green leaves and red flowers.
Canna 'Cheyenne' is a medium-sized Premier Group cultivar, with green leaves and orange flowers.
Chicago requires research.
Canna 'Childsii' is a small Crozy Group cultivar, with green leaves and multi-coloured flowers.
Canna 'China Doll (1)' is a small Crozy Group cultivar, with green leaves and multi-coloured flowers.