Rhône
Canna 'Rhône' is a medium-sized Crozy Group cultivar, with green leaves and red flowers.
Richstone Pink
Canna 'Richstone Pink' is a medium-sized Premier Group cultivar, with dark leaves and pink flowers.
Rigoletto
Canna 'Rigoletto' is a medium-sized Italian Group cultivar, with green leaves and yellow flowers.
Riven Mist
Canna 'Riven Mist' is a medium-sized aquatic cultivar, equally at home as a water marginal or in the border, with green leaves and orange flowers.
River Avon
Canna 'River Avon' is a small aquatic cultivar, equally at home as a water marginal or in the border, with green leaves and yellow flowers.
River Loire
Canna 'River Loire' is a medium-sized aquatic cultivar, equally at home as a water marginal or in the border, with green leaves and pink flowers.
River Mersey
Canna 'River Mersey' is a medium-sized aquatic cultivar, equally at home as a water marginal or in the border, with green leaves and pink flowers.
River Ouse
Canna 'River Ouse' is a medium-sized aquatic cultivar, equally at home as a water marginal or in the border, with green leaves and yellow flowers.
River Seine
Canna 'River Seine' is a medium-sized aquatic cultivar, equally at home as a water marginal or in the border, with green leaves and pink flowers.
River Severn
Canna 'River Severn' is a medium-sized aquatic cultivar, equally at home as a water marginal or in the border, with green leaves and yellow flowers.
River Teme
Canna 'River Teme' is a small aquatic cultivar, equally at home as a water marginal or in the border, with green leaves and white flowers.
River Thames
Canna 'River Thames' is a small aquatic cultivar, equally at home as a water marginal or in the border, with green leaves and yellow flowers.
River Trent
Canna 'River Trent' is a medium-sized aquatic cultivar, equally at home as a water marginal or in the border, with green leaves and yellow flowers.
River Usk
Canna 'River Usk' is a medium-sized aquatic cultivar, equally at home as a water marginal or in the border, with green leaves and red flowers.
River Wye
Canna 'River Wye' is a small aquatic cultivar, equally at home as a water marginal or in the border, with green leaves and multi-coloured flowers.
Roi Humbert 1er
Canna 'Roi Humbert 1er' is a medium-sized Italian Group cultivar, with dark leaves and red flowers.
Roi Soleil
Canna 'Roi Soleil' is a medium-sized Crozy Group cultivar, with green leaves and red flowers.
Roitelet
Canna 'Roitelet' is a small Crozy Group cultivar, with green leaves and red flowers.
Roma
Canna 'Roma' is a tall Italian Group cultivar, with green leaves and multi-coloured flowers.
Romagna
Canna 'Romagna' is a medium-sized Italian Group cultivar, with green leaves and red flowers.