Canna 'Champigny' is a medium-sized Crozy Group cultivar, with dark leaves and red flowers.
Canna 'Champion (2)' is a medium-sized Crozy Group cultivar, with dark leaves and pink flowers.
Canna 'Chanteclair' is a medium-sized Crozy Group cultivar, with dark leaves and red flowers.
Canna 'Charlemagne' is a medium-sized Crozy Group cultivar, with dark leaves and pink flowers.
Charles Dippe requires research.
Canna 'Charles Hubert' is a medium-sized Crozy Group cultivar, with dark leaves and red flowers.
Canna 'Charlotte' is a medium-sized cultivar, with dark leaves and red flowers.
Canna 'Charming' is a medium-sized Crozy Group cultivar, with dark leaves and yellow flowers.
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.
Chinese Purple requires research.
Canna 'Chocolate Cherry' is a medium-sized cultivar, with dark leaves and red flowers.