About
Ceanothus 'Cynthia Postan' is a compact, evergreen shrub that can reach heights of up to 2.5 meters. It features glossy, dark green foliage, with leaves measuring up to 4 centimeters in length. In late spring and early summer, this variety produces abundant clusters of vibrant blue flowers.
About the genus
Ceanothus consists of either evergreen or deciduous shrubs and small trees, characterized by simple leaves and clusters of small flowers that can be blue, pink, or white. These plants are known for their rapid growth, though they often have a limited lifespan.
Growing conditions
- Sunlight
- Full sun
- Soil type
- 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
- Evergreen
- Height
- 1.5-2.5 metres
- Spread
- 1.5-2.5 metres
- Time to full height
- 2-5 years
- Suggested uses
- Gravel garden, City and courtyard gardens, Coastal, Cottage and informal garden, Mediterranean climate plants, Wildlife gardens
Care notes
- Cultivation
- Grow in fertile, well-drained soil in full sun with shelter from strong, cold winds. Lime tolerant but may become chlorotic on shallow chalk soils. See ceanothus cultivation
- Pruning
- Pruning group 8 after flowering or pruning group 13 if wall trained
- Propagation
- Root semi-ripe cuttings in mid- to late summer
- Pest resistance
- May be susceptible to scale insects
- Disease resistance
- May be susceptible to honey fungus