The magnificent Ceanothus arboreus ‘Trewithen Blue’, known as the Californian Lilac, is a fast-growing evergreen shrub admired for its abundant clusters of deep blue flowers in late spring. Its glossy, dark green foliage and dense habit make it a superb choice for adding structure, colour, and year-round interest to gardens. Ideal as a specimen shrub, informal hedge, or wall-trained evergreen, this Ceanothus brings a touch of the Californian coast to UK landscapes.
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Key Features
Spectacular Blue Flowers – Dense clusters of vivid cobalt-blue blooms appear in late spring and early summer.
Evergreen Foliage – Glossy, dark green leaves provide structure and interest all year.
Fast-Growing & Versatile – Quickly forms an attractive screen or feature shrub.
Wildlife Friendly – Flowers are highly attractive to bees, hoverflies, and other pollinators.
Ideal for Mild Coastal Areas – Thrives in sheltered, sunny positions with free-draining soil.
Award-Winning Heritage – A long-loved Cornish cultivar recognised for its outstanding garden performance.
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Ceanothus arboreus 'Trewithen Blue' | Californian Lilac
🚚 Standard Delivery £14.95 within 10-12 business days.
Eventual Height: 3-4m Eventual Spread: 3-4m Foliage: Dark green, slightly shiny foliage. Evergreen. Flowers: Prolific covering of blue/purple clusters from April to June. Habit: Bushy. It can be grown as a small tree or bushy shrub. Hardiness: Fully Hardy 🔗 Find Trees for Specimen Planting
🔗 Crafting a Garden Bursting with Blossoms
Plant delivered in expected time frame and in good healthy condition. Very pleased with the product and service