Canna 'Scarlet Fever' is a small Crozy Group cultivar, with green leaves and multi-coloured flowers.
Canna 'Scarlet's Rib' is a medium-sized Foliage Group cultivar, with green leaves and orange flowers.
Scented Canna is a synonym of liliiflora Warsc. ex Planch..
Canna 'Schwabenland' is a tall Crozy Group cultivar, with dark leaves and red flowers.
Schwäbische Heimat requires research.
Schwarbriche Heimut is a synonym of Schwäbische Heimat.
Canna 'Scorch' is a medium-sized Foliage Group cultivar, with green leaves and pink flowers.