Canna 'Hilary Owens' is a small Premier Group cultivar, with green leaves and pink flowers.
Canna 'Honey Mango' is a medium-sized Crozy Group cultivar, with green leaves and orange flowers.
Canna 'Honeycomb' is a medium-sized Crozy Group cultivar, with green leaves and multi-coloured flowers.
Canna 'Horn' is a small Crozy Group cultivar, with green leaves and pink flowers.
Canna 'Hossegor' is a medium-sized Crozy Group cultivar, with green leaves and multi-coloured flowers.
Canna 'Howzat' is a medium-sized Australian Group cultivar, with dark leaves and yellow flowers.
Hummingbird Ecstasy requires research.
Canna 'Hungaria' is a medium-sized Crozy Group cultivar, with green leaves and pink flowers.