Plants > Shrubs

Californian lilac 'Trewithen Blue'

Ceanothus arboreus 'Trewithen Blue'

★ RHS AGMFragrant

Genus: Ceanothus
Family: Rhamnaceae

About this plant

'Trewithen Blue' is 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

Growing Information

Height

4-8 Metres

Spread

4-8 Metres

Hardiness

H4

Foliage

Evergreen

Growing Conditions

Sunlight

Full Sun

Soil

ChalkLoamSandy

pH

AlkalineNeutral

Not Currently Available

This plant is not currently stocked at any garden centres on our platform.

Moisture

Poorly DrainedWell Drained

Aspect

East FacingWest FacingSouth Facing

Exposure

Exposed

Care Guide

Cultivation

Grow in well-drained soil in a sheltered position in full sun

Pruning

Pruning group 8

Propagation

Propagate by semi-hardwood cuttings

Pests

Can get scale insects

Diseases

May be affected by honey fungus and Phytophthora root disease

Garden Uses

Uses

Cottage Informal

Planting Places

Wall Trained

Season of Interest

SpringSummerAutumnWinter

Size & Characteristics

Height

4-8 Metres

Spread

4-8 Metres

Habit

Bushy

Time to Full Height

Twenty To Fifty Years