Galapagos
Galapagos requires research.
Gamay
Gamay requires research.
Garbo
Canna 'Garbo' is a medium-sized Conservatory Group cultivar, with dark leaves and pink flowers.
Garum
Garum requires research.
Gemini
Canna 'Gemini' is a medium-sized Crozy Group cultivar, with green leaves and red flowers.
Général de Méribel
Canna 'Général de Méribel' is a medium-sized Crozy Group cultivar, with green leaves and pink flowers.
General Merkel
General Merkel requires research.
Geoffrey St. Hilaire
Canna 'Geoffrey St. Hilaire' is a medium-sized Crozy Group cultivar, with dark leaves and red flowers.
Germania
Germania requires research.
Get-it
Get-it requires research.
Gheluvelt
Gheluvelt requires research.
Giant Red
Canna 'Giant Red' is a tall Foliage Group cultivar, with green leaves and red flowers.
Giselle
Canna 'Giselle' is a medium-sized Crozy Group cultivar, with green leaves and yellow flowers.
Gladstone
Canna 'Gladstone' is a small Crozy Group cultivar, with green leaves and multi-coloured flowers.
glauca f. Caroni
Canna 'glauca f. Caroni' is a small species, with green leaves and white flowers.
glauca f. Davia
Canna 'glauca f. Davia' is a medium-sized aquatic cultivar, equally at home as a water marginal or in the border, with green leaves and yellow flowers.
glauca f. Peach Delight
Canna 'glauca f. Peach Delight' is a medium-sized aquatic cultivar, equally at home as a water marginal or in the border, with green leaves and pink flowers.
glauca var. flava (Michx. ex Lam.) Willd.
Canna 'glauca var. flava (Michx. ex Lam.) Willd.' is a medium-sized cultivar, with green leaves and yellow flowers.
glauca var. glauca
Canna 'glauca var. glauca' is a medium-sized aquatic species, equally at home as a water marginal or in the border, with green leaves and yellow flowers.
glauca var. rubrolutea Hook
glauca var. rubrolutea Hook requires research.