Capri (1) requires research.
Canna 'Capri (2)' is a medium-sized Crozy Group cultivar, with green leaves and yellow flowers.
Canna 'Caprice' is a medium-sized Crozy Group cultivar, with green leaves and yellow flowers.
Canna 'Capricieux' is a medium-sized Crozy Group cultivar, with green leaves and red flowers.
Canna 'Capricorn' is a tall Crozy Group cultivar, with green leaves and multi-coloured flowers.
Canna 'Capricornia' is a tall Crozy Group cultivar, with green leaves and orange flowers.
Canna 'Captain America' is a medium-sized Crozy Group cultivar, with dark leaves and orange flowers.
Canna 'Captain Cole' is a tall cultivar, with dark leaves and red flowers.
Canna 'Captain Lolittle' is a tall Foliage Group cultivar, with dark leaves and red flowers.
Captain Scarlet requires research.
Canna 'Cardinal' is a medium-sized Crozy Group cultivar, with green leaves and red flowers.
Canna 'Cardinal Flame' is a medium-sized Italian Group cultivar, with dark leaves and multi-coloured flowers.
Canna 'Cardinal Sinn' is a medium-sized Crozy Group cultivar, with green leaves and red flowers.
Canna 'Caribbean Sunset' is a medium-sized Crozy Group cultivar, with green leaves and orange flowers.
Carmine King requires research.
Canna 'Carnaval (1)' is a tall Crozy Group cultivar, with green leaves and pink flowers.
Canna 'Carnaval (2)' is a medium-sized Crozy Group cultivar, with green leaves and multi-coloured flowers.
Canna 'Carolina Gold' is a medium-sized Premier Group cultivar, with dark leaves and yellow flowers.
Canna 'Carolina Moonglow' is a medium-sized Crozy Group cultivar, with green leaves and yellow flowers.
Canna 'Carolina Pink' is a medium-sized Crozy Group cultivar, with green leaves and pink flowers.