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A picture of a Californian Lilac 'Trewithen Blue'

Californian Lilac 'Trewithen Blue'

Ceanothus arboreus 'Trewithen Blue'

Also known as

Catalina Ceanothus, California Lilac

Photo by CandideUK (All rights reserved)

Full Sun
Moderate care
Light watering
Frost Hardy

H4

RHS hardiness

-10°C

Minimum temperature

Expected size

Height
Spread

8m

Max

8m

4m

Min

4m

20 years to reach maturity

Flowering

  • spring
  • summer
  • autumn
  • winter

This plant has a mild fragrance

More images of Californian Lilac 'Trewithen Blue'

A photo of Californian Lilac 'Trewithen Blue'
A photo of Californian Lilac 'Trewithen Blue'

Californian Lilac 'Trewithen Blue' Overview

This stunning Californian Lilac cultivar is an evergreen shrub that can reach 6m in height and produces slightly fragrant deep blue flowers in Spring.

Common problems with Californian Lilac 'Trewithen Blue'

Can be attacked by scale insects.

How to harvest Californian Lilac 'Trewithen Blue'

Generally not harvested.

How to propagate Californian Lilac 'Trewithen Blue'

Cuttings

Take semi hardwood cuttings.

Special features of Californian Lilac 'Trewithen Blue'

Attracts bees

Other uses of Californian Lilac 'Trewithen Blue'

This spreading shrub suits being grown in wall side borders in urban settings and courtyard gardens.