saturate-rubra Bouché ex K.Koch
saturate-rubra Bouché ex K.Koch is a synonym of indica var. indica.
Saturne
Saturne requires research.
Saumur
Saumur is a synonym of Verdi.
Savennières
Canna 'Savennières' is a medium-sized Crozy Group cultivar, with dark leaves and orange flowers.
Scarlet
Scarlet requires research.
Scarlet Beauty
Scarlet Beauty requires research.
Scarlet Fever
Canna 'Scarlet Fever' is a small Crozy Group cultivar, with green leaves and multi-coloured flowers.
Scarlet Perfection
Scarlet Perfection requires research.
Scarlet Sprite
Scarlet Sprite requires research.
Scarlet’s Rib
Canna 'Scarlet's Rib' is a medium-sized Foliage Group cultivar, with green leaves and orange flowers.
Scented Canna
Scented Canna is a synonym of liliiflora Warsc. ex Planch..
schlectendaliana Bouché
schlectendaliana Bouché is a synonym of glauca var. glauca.
schubertii
schubertii requires research.
Schwabenland
Canna 'Schwabenland' is a tall Crozy Group cultivar, with dark leaves and red flowers.
Schwabenstreich
Schwabenstreich requires research.
Schwäbische Heimat
Schwäbische Heimat requires research.
Schwarbriche Heimut
Schwarbriche Heimut is a synonym of Schwäbische Heimat.
Scorch
Canna 'Scorch' is a medium-sized Foliage Group cultivar, with green leaves and pink flowers.
Scorpio
Scorpio requires research.
Secrétaire Chabanne
Secrétaire Chabanne requires research.