These are the subject of our National Collection! Native to China & Japan this species has its flowers in panicles (long tapering cones) which usually hang from the branches but may sometimes grow upright.  They normally form a large bush with vigorous ascending and spreading branches.  They will flower on new wood and respond well to pruning by producing larger panicles.  The first cultivars were all white but breeding programmes have produced many new cultivars with flowers that turn green, pink and even red as they mature.