Canna 'Gozée' is a small Crozy Group cultivar, with green leaves and orange flowers.
Canna 'Gran Canaria' is a medium-sized Crozy Group cultivar, with green leaves and white flowers.
Canna 'Grand Duc' is a medium-sized Crozy Group cultivar, with dark leaves and orange flowers.
Grand Opera Series requires research.
Canna 'Grandiflora floribunda' is a medium-sized Foliage Group cultivar, with green leaves and pink flowers.
Grandiflora picta requires research.
Canna 'Green Wyoming' is a tall Italian Group cultivar, with green leaves and pink flowers.
Canna 'Grossherzog Ernst Ludwig von Hessen' is a medium-sized Crozy Group cultivar, with dark leaves and orange flowers.
Canna 'Guayaquilla' is a tall Foliage Group cultivar, with green leaves and orange flowers.
Canna 'Guttermanni' is a tall Foliage Group cultivar, with dark leaves and orange flowers.
Canna 'H.W. Coles' is a medium-sized Premier Group cultivar, with green leaves and orange flowers.
Canna 'Hallow' is a small Premier Group cultivar, with green leaves and multi-coloured flowers.
Canna 'Hannah Dalebø-Wood' is a medium-sized Premier Group cultivar, with dark leaves and pink flowers.
Canna 'Happy Carmen' is a small Crozy Group cultivar, with green leaves and red flowers.
Canna 'Happy Cleo' is a small Crozy Group cultivar, with green leaves and orange flowers.
Canna 'Happy Emily' is a small, with green leaves and yellow flowers.
Canna 'Happy Isabel' is a small, with green leaves and pink flowers.
Canna 'Happy Julia' is a miniature Crozy Group cultivar, with dark leaves and pink flowers.
Canna 'Harmony' is a small Crozy Group cultivar, with green leaves and red flowers.
Canna 'Harvest Gold' is a medium-sized Premier Group cultivar, with green leaves and yellow flowers.