It grows from 3-6 ft tall, will adapt to clay, and can tolerate limited deer browsing. Ceanothus 'Concha' is a highly adaptable garden-worthy cultivar, accepting summer water more forgivingly than most, with dark green glossy leaves and deep, cobalt blue flower clusters in late spring.

How big do Ceanothus grow?

Some Ceanothus grow large, up to 6 metres tall, with a spread of 8 meters, such as Trewithen Blue, which makes checking the plant label important to know the eventual size of the shrub. Good strong blue varieties with the RHS garden merit award are 'Trewithen Blue' and 'Cascade.

Is Ceanothus fast growing?

Ceanothus are fast-growing, long-flowering shrubs and as a result, can be shortlived – after around 10-15 years they may start to lose their shape and get rather leggy. As they don't respond well to hard pruning, it's best to replace plants at this stage.