Caryopteris × clandonensis

This bluebeard (in German called Bartblume [=beardflower]) version is a hybrid of the Caryopteris incana and the Caryopteris mongholica. Although this hybrid is actually an accidental cross, it is now more or less the most common version.
We have this plant in the shady, Northern part of our garden.
Thanks to BikerBear for hosting the Flower Friday challenge.