Caryopteris x clandonensis (Blue Spirea)
- Native to eastern Asia. A genus from the Verbena family
- Small deciduous shrub to 1.5m
- Flowering in late summer
- Deep blue to violet blue flowers in dense cymes
- Prefers sun in well drained enriched soil
- Leaves are downy and serrated
- Fully frost hardy
- Propagate from soft tip or firm leafy cuttings in spring to autumn
- Good cultivars – “Arthur Simmonds”, “Heavenly Blue”, “Blue Mist”
- Prune moderately in late winter or early spring to promote new growth