Cultivars
'Alba Grandiflora'
This plant produces white flowers and has dark green undulating leaves.

'Charles Thomas'
This plant produces lavender-pink flowers to 200mm (8in) across.

'Kermesina'
This plant produces double rose pink flowers that are held high above the foliage in stiff petioles.

'Momo Botan'
This plant produces flowers with dark rose-pink petals that are yellow at the base. The plant is smaller reaching a hight of 120cm (4ft) and is suitable for smaller ponds or containers. 

'Rosa Plena'
This plant produces double dark rose pink flowers that are up to 350mm (14in) across.