Caryopteris x clandonensis Heavenly Blue is an upright deciduous shrub with narrow silvery-green aromatic leaves. In late summer & early autumn, clusters of small blue flowers appear on long stems amongst the foliage. It is drought tolerant & very attractive to bees & butterflies. Grow in a well-drained soil in full sun. Flowers July-September. Height 90-100cm. Supplied in a 3-4 litre pot.