Bluebeard is named for the shape and colour of the flowers rather than the grisly French folktale. This visually-charming and bee-friendly shrub has found its way into many xeriscape gardens, including one at the site of today’s photograph, the Summerland Ornamental Gardens.
Caryopteris × clandonensis is a name that was never validly published. Instead, it has origins in horticulture, and the name has persisted (see the abbreviation Hort., via Wikipedia). This hybrid taxon is the byproduct of a garden cross made in the 1930s between Caryopteris incana and Caryopteris mongholica, and it is now the most commonly-grown member of the genus. In addition to its pollinator-friendliness and suitability for dry gardens, it has scented foliage (similar to lavender) and a prominent spray of blue flowers (see a couple photos in the gardenscape). Cultivars of Caryopteris × clandonensis are often selected for differences in flower colour.
In non-Botany Photo of the Day news, the paucity of entries lately is due in part to preparation for the American Public Gardens Association‘s Excellence in Plant Collections Management Symposium being co-hosted by UBC Botanical Garden. In addition to the events I am involved with for the symposium, my colleagues and I are also trying to complete a web site for exploring the Garden’s plant collections.