Joan's Joy requires research.
Jocelyn requires research.
Joeph Métral requires research.
John Farquahar 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.
Johnny Lochner is a synonym of Kønigen Charlotte.
Jolene requires research.
Joseph Ausende requires research.
Canna 'Joseph Bischau' is a medium-sized Crozy Group cultivar, with dark leaves and red flowers.
Joseph Buchan is a synonym of Joseph Bischau.
Canna 'Journey's End' is a small Crozy Group cultivar, with green leaves and multi-coloured flowers.
Juanita requires research.
Canna 'Jubilee' is a medium-sized Premier Group cultivar, with green leaves and multi-coloured flowers.
Judy Cuppaidge requires research.
Jules Chrétien requires research.
juncea Retz. is a synonym of indica var. indica.
June Ranger requires research.