Giant Crimson
Giant Crimson requires research.
Giant Red
Canna 'Giant Red' is a tall Foliage Group cultivar, with green leaves and red flowers.
Giant White
Giant White is a synonym of Tall White.
gigantea
gigantea is a synonym of tuerckheimii f. Gigantea.
Gigantea major
Gigantea major requires research.
Gigantea rubra
Gigantea rubra requires research.
Gilder
Gilder requires research.
Giselle
Canna 'Giselle' is a medium-sized Crozy Group cultivar, with green leaves and yellow flowers.