This mounded woody plant has cornflower-blue flowers in late summer and fragrant, silvery-green foliage. Though bluebeard is technically a shrub, it should be treated as a perennial in the Midwest because it tends to die back in harsh winters.
- Deciduous (seasonally loses leaves)
- Zone 5
- Zone 6
- Zone 7
- Zone 8
- Zone 9
- Full sun (6 hrs direct light daily)
- Partial sun (4-6 hrs light daily)
- Dry sites
- Occasional drought
- Alkaline soil
- Alkaline soil
- Moist, well-drained soil
- Low-growing shrub (under 3 feet)
- Mixed border
- Early winter
- Mid winter
- Late summer
- Early fall
- Mid fall
- Late fall
2 to 3 feet high and wide
Tree & Plant Care
Though it is technically a shrub, the plant should be treated as a perennial; dieback occurs in harsh winters. Do not cut back in fall; spring pruning promotes new growth and flowers. Cut back in early spring.
Disease, pests and problems
No serious problems
Rot may occur in poorly drained sites.
Native geographic location and habitat
Of hybrid origin
Attracts birds & butterflies
Flowers attract butterflies and hummingbirds.
Leaf or needle arrangement, size, shape, and texture
Simple, opposite leaves; lance-shaped, 1 to 2 inches long; margins entire to finely toothed
Blue-grey with silvery undersides; fall color is a buttery yellow.
Flower arrangement, shape, and size
Blue flowers borne in clusters (cymes) from the axils of the stem in late summer
Fruit, cone, nut, and seed descriptions
Clusters of tan capsules; ornamentally interesting in winter.
Cultivars and their differences
Blue Mist (Caryopteris x clandonensis 'Blue Mist'): powder blue flowers
Dark Knight (Caryopteris x clandonensis 'Dark Knight'): rich deep blue flowers
Longwood Blue (Caryopteris x clandonensis 'Longwood Blue'): a taller cultivar reaching a height of 4 feet, violet-blue flowers