Cultivars
'Aureum'
This less vigorous plant has yellow-gold coloured leaves with pink flowers.

'Aureum Crispum'
This plant spreads quickly and has golden-yellow curled leaves.

'Compactum'
This compact plant grows to 150mm (6in) forming a rounded habit with small leaves.

'Heiderose'
This upright plant has a bushy habit and pink flowers.

'Variegatum'
This plant has leaves that are tipped in yellow.