Cultivar
'White Cloud'
This sub-shrub grows to 2.5 m (8 ft) tall with deeply cut grey green foliage and produces very large saucer-shaped white crepe-like flowers with a yellow centre, throughout summer. It prefers an open sunny to partially shaded position and requires little or no water during the growing period. This hardy sub-shrub tolerates most well-drained soils and grows in USDA zones 5-10.