Theophilus Viard requires research.
Theresa is a synonym of CannaSun™ Theresa.
Canna 'Theresa Blakey' is a small Crozy Group cultivar, with dark leaves and multi-coloured flowers.
Thibauti requires research.
Thomas S. Ware requires research.
Canna 'Thorvald Dalebø' is a small Premier Group cultivar, with green leaves and red flowers.
thyrsiflora Hegetschw. is a synonym of indica var. indica.
Tickled Pink requires research.
Tiger Lily is a synonym of Le Tigre.
Tiger Moth requires research.
Canna 'Tiger Paws' is a medium-sized Premier Group cultivar, with dark leaves and orange flowers.
Tiger Stripe is a synonym of Bengal Tiger.
Tigris requires research.
Tiki Torch is a synonym of compacta Roscoe.
Tiki Tourche is a synonym of compacta Roscoe.
tinei Tod. is a synonym of indica var. indica.
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.
Tobago requires research.