Plant in a sunny, sheltered spot with free-draining soil, as it dislikes winter wet. A raised bed, gravel garden, or container with gritty compost works well to keep the roots dry. Once established, it becomes more drought tolerant and only needs occasional watering during prolonged dry spells. Avoid overwatering, especially in winter.

Feed with a balanced fertiliser in spring to encourage healthy growth and more flowers. Deadhead faded blooms to prolong the flowering season. Prune lightly after flowering to keep the plant neat and bushy, but avoid hard pruning into old wood, as it does not regenerate well. Apply a layer of horticultural grit or mulch around the base to improve drainage, particularly in heavy soils.

Protect from severe frosts in colder regions by covering with fleece or moving container-grown plants to shelter.