The Gem (2) is a synonym of Oiseau de Feu.
Canna 'The President' is a medium-sized Premier Group cultivar, with green leaves and red flowers.
Canna 'Theresa Blakey' is a small Crozy Group cultivar, with dark leaves and multi-coloured flowers.
Canna 'Thorvald Dalebø' is a small Premier Group cultivar, with green leaves and red flowers.
Canna 'Tiger Paws' is a medium-sized Premier Group cultivar, with dark leaves and orange flowers.
Tiger Stripe is a synonym of Bengal Tiger.
Tiki Torch is a synonym of compacta Roscoe.
Tiki Tourche is a synonym of compacta Roscoe.
Tinkerbell is a synonym of Tropical Yellow.
Canna 'Tirol' is a medium-sized Crozy Group cultivar, with dark leaves and pink flowers.
Canna 'Tivoli' is a tall Australian Group cultivar, with green leaves and multi-coloured flowers.
Canna 'Tom Thumb' is a small Miniature Group cultivar, with green leaves and yellow flowers.
Canna 'Topaz' is a small Premier Group cultivar, with green leaves and orange flowers.
Canna 'Torchlight' is a medium-sized Foliage Group cultivar, with green leaves and multi-coloured flowers.
Canna 'Tornado' is a medium-sized Foliage Group cultivar, with green leaves and red flowers.
Canna 'Trilby' is a medium-sized Italian Group cultivar, with green leaves and multi-coloured flowers.
Canna 'Trinacria' is a medium-sized Italian Group cultivar, with green leaves and yellow flowers.
Canna 'Trinacria Variegata' is a small Italian Group cultivar, with variegated leaves and multi-coloured flowers.
Canna 'Triomphe' is a medium-sized Premier Group cultivar, with dark leaves and red flowers.
Canna 'Triumph' is a small Crozy Group cultivar, with green leaves and red flowers.