Canna 'Circe' is a medium-sized Crozy Group cultivar, with green leaves and pink flowers.
Canna 'City of Portland' is a medium-sized Crozy Group cultivar, with green leaves and pink flowers.
Claire requires research.
Canna 'Clans' is a medium-sized Crozy Group cultivar, with green leaves and red flowers.
Canna 'Clauda' is a medium-sized cultivar, with green leaves and red flowers.
Claude Bernard requires research.
Canna 'Cleopatré' is a small Crozy Group cultivar, with green leaves and orange flowers.
coccinéa is a synonym of coccinea.
Coles Pale Superba requires research.
Colette requires research.
Canna 'Colibri' is a medium-sized Crozy Group cultivar, with green leaves and multi-coloured flowers.
Canna 'Colonel Buisson' is a medium-sized cultivar, with green leaves and multi-coloured flowers.
Canna 'Colonel Dodds' is a small cultivar, with green leaves and red flowers.
Canna 'Colonel Voillard' is a medium-sized Crozy Group cultivar, with green leaves and multi-coloured flowers.
Canna 'Colortime' is a medium-sized Crozy Group cultivar, with green leaves and multi-coloured flowers.
Canna 'Colossal' is a medium-sized cultivar, with green leaves and red flowers.
Colossal White requires research.
Canna 'Columbia' is a medium-sized Crozy Group cultivar, with green leaves and red flowers.
Canna 'Commandant Dubois' is a medium-sized Crozy Group cultivar, with green leaves and multi-coloured flowers.
Canna 'Commandant Faurax' is a medium-sized Crozy Group cultivar, with green leaves and red flowers.