Plant in well-drained, moisture-retentive soil in sun or light shade. For pots, use a loam-based compost such as John Innes No.3, with good drainage to prevent waterlogging. Water newly planted shrubs regularly until established, and keep container-grown plants watered during dry spells.
Tip-prune young plants in spring by pinching out soft shoot tips or cutting back longer growth by a third to encourage a bushy shape. After flowering, cut back spent flowered stems to a strong, healthy bud. Remove about a quarter of the oldest stems at the base to promote new growth and keep the shrub compact. Apply a balanced fertiliser in spring to support good flowering and healthy foliage.