Caryopteris x clandonensis 'Dark Knight'
Blue Mist Spirea, Bluebeard
Family: Verbenaceae Vervain
| Type | Shrub |
| USDA Hardiness range | 6A - 9B |
| Exposure | Full sun |
| Bloom color | Blue |
| Bloom time | Summer and Fall |
| Water needs | Moist |
| Landscape uses | Border, foundation, massing, rock garden |
| Height | 36" to 5' / 90cm to 1.60m |
| Spread | 36" to 4' / 90cm to 1.20m |
| Growth rate | Moderate |
| Persistence | Deciduous |
| Bloom attributes | Fragrant flowers |
| Leaf color | Blue, green, silvery |
| Fruit color | n/a |
| Soil pH requirements | Neutral |
| Soil type | Loamy |
| Form | Upright or erect |
| Attributes and features | Fragrant foliage |