Cultivars
'Bouquet Rose'
This plant has pale lilac-pink flowers.

'Galadriel'
This dwarf form grows to 450mm (18in) tall with pale pink-purple flowers.

'Summer Snow'
This plant produces white flowers with green calyces and grows to 1m (3ft) tall.

'Summer Spire'
This plant grows to 600mm (2ft) tall and produces deep pink flowers.

'Variegata', 
syn. subsp speciosa 'Variegata'
This plant has greyish-green leaves with white margins and produces pink flowers.

'Vivid'
This plant forms a dense clump to 600mm (2ft) tall and 300mm (1ft) wide. It produces bright purple-pink flowers.