Skip to site navigation

Ceanothus 'Concha' AGM

Home  |  Plants > Plant Selector > Ceanothus 'Concha' AGM

© RHS 1999

Characteristics

Plant type

Shrub

Habit

Bushy

Resilience

Hardiness

H4 (hardy - average winter)

Colour

Flower

Dark Blue in Spring

Foliage

Dark Green in Autumn, Spring, Summer and Winter

Size

Ultimate height

2.5-4 metres

Ultimate spread

2.5-4 metres

Time to ultimate height

10-20 years


Preferred common name

Californian lilac 'Concha'

Family

Rhamnaceae


Ceanothus can be evergreen or deciduous shrubs or small trees, with simple leaves and small blue, pink or white flowers in profuse axillary or terminal clusters. They are fast-growing but may be short-lived

'Concha' is an evergreen shrub of dense habit, to 3m in height and width, with arching branches bearing narrow, dark green leaves and profuse clusters of deep blue flowers in late spring

Synonym(s)

  • Ceanothus azureus 'Concha'

How to grow

Sunlight

  • Full sun

Aspect

  • South-facing, East-facing or West-facing
  • Sheltered

Cultivation

Grow in well-drained soil in a sheltered position in full sun

Soil

  • Well-drained or Moist but well-drained
  • Alkaline or Neutral
  • Loam, Clay or Sand

Propagation

Propagate by semi-hardwood cuttings

Suggested planting locations and garden types

City/Courtyard Gardens or Wall-side Borders


How to care

Pruning

Pruning group 8

Pests

Can get scale insects

Diseases

May be affected by honey fungus and Phytophthora root disease