Caryopteris 'Dark Knight' is a small shrub with attractive, narrow, grey-green foliage and during the late summer months masses of pretty dark blue flowers. It's a tough shrub, capable of taking dry conditions in its stride once established.
Botanical Name:	Caryopteris x clandonensis 'Dark Knight'

Exposure:	Full Sun
Hardiness Zone:	7+
Bloom Time:	July - Oct
Height:	24 - 36"

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Caryopteris

Botanical Name:
Caryopteris x clandonensis 'Dark Knight'

Caryopteris has blue flowers that bloom late in the season on silver green foliage. It should be treated as an herbaceous perennial and cut to the ground in winter, and a light pruning after the first bloom will often stimulate another flush.