Ceanothus arboreus 'Trewithen Blue'
Californian lilac 'Trewithen Blue'
A large vigorous evergreen spreading shrub to 6m in height, with broadly oval or rounded leaves to 8cm in length, and slightly fragrant deep blue flowers in panicles to 12cm in length
Size
Ultimate height
4–8 metresTime to ultimate height
10–20 yearsUltimate spread
4–8 metresGrowing conditions
Moisture
Moist but well–drained, Well–drainedpH
Alkaline, NeutralColour & scent
Stem | Flower | Foliage | Fruit | |
Spring | Blue | Green | ||
---|---|---|---|---|
Summer | Blue | Green | ||
Autumn | Green | |||
Winter | Green |
Position
- Full sun
Aspect
West–facing or South–facing or East–facing
Exposure
Sheltered Hardiness
H4Botanical details
- Family
- Rhamnaceae
- Native to the UK
- No
- Foliage
- Evergreen
- Habit
- Bushy
- Genus
Ceanothus can be evergreen or deciduous shrubs or small trees, with simple leaves and small blue, pink or white flowers in profuse axillary or terminal clusters. They are fast-growing but may be short-lived
- Name status
Accepted
How to grow
Cultivation
Grow in well-drained soil in a sheltered position in full sun
Propagation
Propagate by semi-hardwood cuttings
Suggested planting locations and garden types
- City and courtyard gardens
- Wall side borders
Pruning
Pests
Can get scale insects
Diseases
May be affected by honey fungus and Phytophthora root disease
Get involved
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