Canna 'En Avant' is a medium-sized Premier Group cultivar, with green leaves and multi-coloured flowers.
Enchantress requires research.
Canna 'Endeavour' is a medium-sized aquatic cultivar, equally at home as a water marginal or in the border, with green leaves and red flowers.
Canna 'Enfant de Rhône' is a small Crozy Group cultivar, with green leaves and pink flowers.
Ensign requires research.
Canna 'Epi d'Or' is a medium-sized Crozy Group cultivar, with green leaves and yellow flowers.
Canna 'Epicure' is a medium-sized Crozy Group cultivar, with dark leaves and red flowers.
Epiphany is a synonym of Burbank.
Canna 'Erebus' is a medium-sized aquatic cultivar, equally at home as a water marginal or in the border, with green leaves and pink flowers.
Eric Neubert is a synonym of Verdi.
Eric Newbert is a synonym of Verdi.
Ermine is a synonym of North Star Ermine.
Canna 'Erotic One' is a medium-sized Foliage Group cultivar, with green leaves and red flowers.
Erythrina requires research.
Escarène requires research.
esculenta Loudon is a synonym of indica var. indica.
Canna 'Espresso Festival' is a medium-sized Crozy Group cultivar, with dark leaves and pink flowers.
Etincelle requires research.