Caryopteris × clandonensis Blue Empire ('Elst33'PBR)

Grow in moderately fertile, well-drained soil in a sunny sheltered spot; ideal against a sunny wall. Some drought tolerance once established. Will not tolerate wet, poorly drained soil

Flowers on new growth so can be cut back hard in spring, see pruning group 6

Propagate by softwood cuttings from spring to mid-summer, semi-ripe cuttings from mid- to late summer or hardwood cuttings from late autumn to mid-winter. As this plant is protected by Plant Breeders' Rights, any propagation should be for personal rather than commercial use

May be susceptible to capsid bug

Generally disease-free