Krasnall
Krasnall requires research.
Krelagei discolor
Krelagei discolor requires research.
Kreta
Canna 'Kreta' is a small Crozy Group cultivar, with green leaves and red flowers.
Kronos
Canna 'Kronos' is a medium-sized Italian Group cultivar, with green leaves and multi-coloured flowers.
Kronprinzessin Cäcilie
Kronprinzessin Cäcilie requires research.
kunzei Kraenzl.
kunzei Kraenzl. is a synonym of paniculata.
Kupferriese
Kupferriese is a synonym of Copper Giant.
Kyneburg
Canna 'Kyneburg' is a small Crozy Group cultivar, with dark leaves and pink flowers.