Caryopteris is a genus of small shrubs bearing bluein late summer. They prefer sunny positions but are not particular about . Plant in winter. Both of the specimens listed below flower better if cut down almost to the ground each April, but not the first year after planting.
Caryopteris clandonensis, 2-1/2 to 3 ft., a hybrid, with greyish leaves and spikes of bright blue flowers in August and September.
C. Ferndown, 1-½ ft., violet-blue flowers and dark green leaves.