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Ceanothus 'Concha'
  • RHS AGM

Californian lilac 'Concha'

'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

Synonyms
Ceanothus azureus 'Concha'

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Size
Ultimate height
2.5–4 metres
Time to ultimate height
10–20 years
Ultimate spread
2.5–4 metres
Growing conditions
Clay
Loam
Sand
Moisture
Moist but well–drained, Well–drained
pH
Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Blue Green
Summer Green
Autumn Green
Winter Green
Position
  • Full sun
Aspect

South–facing or West–facing or East–facing

Exposure
Sheltered
Hardiness
H4
Botanical details
Family
Rhamnaceae
Native to the UK
No
Foliage
Evergreen
Habit
Bushy
Genus

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

Name status

Accepted

How to grow

Cultivation

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

Propagation

Propagate by semi-hardwood cuttings

Suggested planting locations and garden types
  • City and courtyard gardens
  • Wall side borders
Pruning

Pruning group 8

Pests

Can get scale insects

Diseases

May be affected by honey fungus and Phytophthora root disease

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