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.
Triomphe de Nantes requires research.
Triton requires research.
Canna 'Triumph' is a small Crozy Group cultivar, with green leaves and red flowers.