Ceanothus arboreus 'Trewithen Blue' is a beautiful evergreen shrub known for its vibrant blue flowers and adaptability to the Irish climate. It is a popular choice among gardeners in Ireland, offering a splash of color and a variety of uses in outdoor spaces.

Height/Spread: Ceanothus arboreus 'Trewithen Blue' can reach a height of 6-8 feet (180-240 centimeters) with a spread of 8-10 feet (240-300 centimeters). Its size makes it suitable for creating a focal point or serving as a background plant in larger gardens in the Irish climate.

Position: This variety of Ceanothus thrives in a sunny position with well-drained soil, making it well-suited for the Irish climate. It prefers a sheltered location, as it may be sensitive to harsh winds. However, it can tolerate some exposure, making it adaptable to various garden conditions.

Soil: Ceanothus arboreus 'Trewithen Blue' prefers well-drained soil that is slightly acidic to neutral. It is important to ensure the soil is fertile and amended with organic matter to provide optimal growing conditions in Irish gardens.

Flowering Season: 'Trewithen Blue' produces stunning clusters of deep blue flowers in late spring or early summer, adding a vibrant burst of color to Irish gardens. The flowering season coincides well with the Irish climate, providing a beautiful display during the warmer months.

Uses: Ceanothus arboreus 'Trewithen Blue' serves multiple purposes in Irish gardens. It can be grown as a standalone specimen plant, creating a striking focal point with its colorful flowers. Additionally, it is often used as a hedge or screen to provide privacy and add beauty to outdoor spaces. Its evergreen nature ensures year-round interest, while the blue flowers attract pollinators, making it beneficial for wildlife gardens.