Joan's Joy requires research.
Canna 'John Layden' is a small Crozy Group cultivar, with green leaves and pink flowers.
Canna 'John Lochner' is a medium-sized Crozy Group cultivar, with dark leaves and pink flowers.
Canna 'John Tulett' is a medium-sized Crozy Group cultivar, with green leaves and yellow flowers.
Canna 'Joseph Bischau' is a medium-sized Crozy Group cultivar, with dark leaves and red flowers.
Canna 'Journey's End' is a small Crozy Group cultivar, with green leaves and multi-coloured flowers.