Plantieri requires research.
platyphylla Nees & Mart. requires research.
plurituberosa T. Koyama & Nob. Tanaka requires research.
Canna 'Pluto' is a medium-sized Italian Group cultivar, with dark leaves and red flowers.
Podgora requires research.
Poésie requires research.
Pohl Emléke requires research.
Canna 'Poinsettia' is a small Crozy Group cultivar, with green leaves and red flowers.
Polaris requires research.
Canna 'Polish Lady' is a medium-sized Premier Group cultivar, with green leaves and multi-coloured flowers.
Canna 'Polonaise' is a medium-sized Crozy Group cultivar, with green leaves and multi-coloured flowers.
Canna 'Pomone' is a medium-sized Crozy Group cultivar, with green leaves and yellow flowers.
Canna 'Porcelain Petals' is a small Premier Group cultivar, with green leaves and white flowers.
Canna 'Port Denison' is a medium-sized Premier Group cultivar, with dark leaves and pink flowers.
Canna 'Powick' is a medium-sized Crozy Group cultivar, with green leaves and multi-coloured flowers.
Canna 'Präsident Meyer' is a medium-sized Crozy Group cultivar, with dark leaves and red flowers.
Prelude requires research.
Canna 'Prémices de Nice' is a medium-sized Foliage Group cultivar, with green leaves and multi-coloured flowers.