Botanical name
Ceanothus arboreus ‘Trewithen Blue’
Other names
Feltleaf ceanothus ‘Trewithen Blue’, Felt-leaf ceanothus ‘Trewithen Blue’, Californian lilac ‘Trewithen Blue’, Catalina ceanothus ‘Trewithen Blue’, Island ceanothus ‘Trewithen Blue’, Island mountain lilac ‘Trewithen Blue’, Catalina mountain lilac ‘Trewithen Blue’
Genus
Ceanothus
Variety or Cultivar
‘Trewithen Blue’ _ ‘Trewithen Blue’ is a large, vigorous, spreading, evergreen shrub or small tree with broadly ovate, glossy, dark green leaves, felted beneath, and conical panicles of lightly fragrant, deep blue flowers in spring.
Native to
Channel Islands, USA
Foliage
Evergreen
Habit
Branching, Spreading
Awards
RHS AGM (Award of Garden Merit)
Flower
Blue in Spring; Blue in Summer
Foliage
Dark-green in All seasons
HOW TO CARE
Watch out for
Specific pests
Scale insects
Specific diseases
Honey fungus
General care
Propagation methods
Semi-hardwood cuttings
Ceanothus arboreus ‘Trewithen Blue’ (Feltleaf ceanothus ‘Trewithen Blue’) will reach a height of 6m and a spread of 8m after 10-20 years.
Suggested uses
City, Wallside and trellises
Cultivation
Plant in well-drained soil in a sheltered position in full sun.
Soil type
Chalky, Loamy, Sandy
Soil drainage
Moist but well-drained, Well-drained
Soil pH
Alkaline, Neutral
Light
Full Sun
Aspect
South, East, West
Exposure
Sheltered
