Caryopteris - Bluebeard

Caryopteris (commonly known as Bluebeard or Blue Mist Spirea) – Most varieties, including the common Caryopteris × clandonensis, produce violet-blue to deep blue flowers. These appear in late summer to early fall and are highly attractive to bees and butterflies. The foliage is typically silvery-green or gray-green, adding contrast to the vibrant blue blooms.