About
Caryopteris x clandonensis 'Dark Knight' is a compact, deciduous shrub that reaches heights of up to 1.2 meters. It features ovate to lance-shaped leaves that emit a pleasant aroma and have a silvery underside. During late summer and early autumn, it produces abundant clusters of deep blue-purple flowers.
About the genus
Caryopteris includes both deciduous shrubs and herbaceous perennials, characterized by their fragrant, uncomplicated leaves. These plants produce small blue or white flowers that appear in dense clusters in the axils during late summer and autumn.
Growing conditions
- Sunlight
- Full sun
- Soil type
- Chalk, Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Well-drained
- Aspect
- South-facing, West-facing
- Exposure
- Sheltered
- UK hardiness
- H4
Plant details
- Plant type
- Shrubs
- Habit
- Bushy
- Foliage
- Deciduous
- Height
- 1-1.5 metres
- Spread
- 1-1.5 metres
- Time to full height
- 5-10 years
- Suggested uses
- City and courtyard gardens, Coastal, Cottage and informal garden, Mediterranean climate plants, Wildlife gardens
- Fragrance
- Foliage
Care notes
- Cultivation
- Grow in moderately fertile, light, well-drained soil in full sun. Best positioned near a warm, sunny wall
- Pruning
- Pruning group 6
- Propagation
- Root softwood cuttings from spring to midsummer, semi-ripe cuttings from mid to late summer or hardwood cuttings from late autumn to midwinter
- Pest resistance
- May be susceptible to capsid bugs and mealybugs
- Disease resistance
- May be susceptible to honey fungus