Blue mist shrub, Blue spirea
. . . for powder blue blooms in autumn
Common Names: Blue mist shrub, Blue spirea
Botanical Name: Caryopteris clandonensis
Design Tip: Use in a sunny mixed border or among shrubbery for contrasting color foliage and seasonal bloom.
Size and Form: This low growing shrub is maintained as a three foot border perennial by being cut to ground in winter. In warmer climates and fertile soil, they can be additionally pruned in early summer for a more compact size in the oncoming bloom season.
Flowers: Pale blue blooms cover the plant in late summer and autumn for many weeks. In ideal conditions, there may also be a light bloom spell in spring.
Foliage: Small silvery-green leaves provide an attractively textured mound between bloom flushes.
Cultivation: It grows best in full sun with moderate amounts of water, in average to rich well-drained bedding soil.
Cold Tolerance: USDA Hardiness Zone 6-9
Grooming: Maintain a tightly branched mound by cutting back to the ground each year in late winter and lightly prune in early summer. Blooms occur on new wood.
Snippets: This Asian member of the verbena family is being further developed. New species of Caryopteris and new selections of C. clandonensis are becoming available. Bees and butterflies are attracted to the flowers and it is reputed to be deer resistant.
The species C. x clandonensis, commonly known as bluebeard and blue-mist spirea
grows 2' - 4'
Cultivated, photographed and written by