Ceanothus Concha


Californian Lilac

Ceanothus Concha is a popular evergreen shrub having a dense habit and grows to 3m in height and width. Arching branches bear glossy dark green leaves backing the profuse clusters of deep blue flowers which open from reddish-purple buds in late spring.

Ceanothus Concha

Californian Lilac

This popular evergreen shrub has a dense habit and grows to 3m in height and width. Arching branches bear glossy dark green leaves backing the profuse clusters of deep blue flowers which open from reddish-purple buds in late spring.

Ceanothus Concha, commonly known as the California lilac, is a highly regarded ornamental shrub within the diverse Ceanothus genus. Native to North America, particularly the western regions of the United States, this plant is celebrated for its vibrant blue flowers, drought tolerance, and adaptability to various garden settings.

Ceanothus ‘Concha’ is an evergreen shrub that typically reaches heights of 6 to 8 feet, with a similar spread. Its dense growth habit and arching branches contribute to its attractive form, making it a standout specimen in gardens. The leaves are small, dark green, and glossy, providing a lush backdrop to the plant’s striking floral display.

One of the most remarkable features of Ceanothus ‘Concha’ is its profuse flowering. In late spring to early summer, the shrub is adorned with an abundance of tiny, vivid blue flowers arranged in dense clusters. These blossoms not only add a splash of color but also emit a subtle, sweet fragrance that can attract pollinators such as bees and butterflies, enhancing the biodiversity of the garden.

Ceanothus Concha is known for its ease of cultivation and low maintenance requirements, making it an excellent choice for both novice and experienced gardeners.  Ceanothus ‘Concha’ thrives in full sun, although it can tolerate partial shade. Optimal blooming occurs when the plant receives at least six hours of direct sunlight per day.

This shrub prefers well-draining soil and can adapt to a range of soil types, including sandy, loamy, and clay soils. However, it performs best in soils with a slightly acidic to neutral pH.  Once established, Ceanothus ‘Concha’ is highly drought-tolerant. During the first year after planting, regular watering is essential to help the plant establish a strong root system. Afterward, minimal watering is required, making it an ideal choice for water-wise gardens.

Minimal pruning is needed for Ceanothus ‘Concha.’ It is advisable to remove any dead or damaged branches and to lightly shape the plant after flowering to maintain its form. Avoid heavy pruning, as it can negatively impact the plant’s overall health and flowering potential. Ceanothus ‘Concha’ generally does not require fertilization. Excessive feeding can lead to overly vigorous growth, which may reduce the plant’s drought tolerance and make it more susceptible to pests and diseases.

Ceanothus ‘Concha’ is a versatile plant that can be utilized in various landscaping designs. Its vibrant blue flowers and evergreen foliage make it an excellent choice for creating visual interest and adding color to the garden. Due to its dense growth habit, Ceanothus ‘Concha’ can be used to create attractive hedges or privacy screens. Planting several shrubs in a row can effectively block unsightly views and provide a natural barrier.

The striking appearance of Ceanothus ‘Concha’ makes it an ideal specimen plant. Placing it in a prominent location, such as a focal point in a garden bed or near an entryway, allows its beauty to be fully appreciated. The nectar-rich flowers of Ceanothus ‘Concha’ attract various pollinators, including bees and butterflies. Incorporating this shrub into a wildlife garden can support local ecosystems and promote biodiversity. With its excellent drought tolerance, Ceanothus ‘Concha’ is a valuable addition to xeriscapes and other water-wise garden designs. Its minimal water requirements help conserve water while maintaining an attractive landscape.

Ceanothus ‘Concha’ is a garden gem, offering a combination of stunning blue flowers, evergreen foliage, and low maintenance requirements. Its adaptability to various soil types and climates, along with its drought tolerance, makes it an ideal choice for gardeners seeking a resilient and visually appealing plant. Whether used as a hedge, specimen plant, or part of a wildlife-friendly garden, Ceanothus ‘Concha’ is sure to enhance the beauty and biodiversity of any garden space.


Plant Size

2 Litre


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