Plant encyclopedia›Californian lilac 'Cynthia Postan'

Californian lilac 'Cynthia Postan'

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A dense, rounded, evergreen shrub to 2.5m tall with glossy, dark green leaves to 4cm long, and rich blue flowers profusely borne in dense clusters in late spring and early summer

Scientific classification

Species: Californian lilac 'Cynthia Postan' (Ceanothus 'Cynthia Postan')
Genus: Ceanothus
Family: Rhamnaceae

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Toxicity: Shrubs
Plant type: 1.5-2.5 metres
Height: 1.5-2.5 metres
Spread: Evergreen
Foliage: Bushy
Habit: Spring · Summer · Autumn · Winter
Season of interest: Full sun
Sunlight: Information to be completed
Ideal temperature

Californian lilac 'Cynthia Postan' pictures

Distribution of Californian lilac 'Cynthia Postan'

Distribution map

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Culture

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Toxicity

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Quick identification of Californian lilac 'Cynthia Postan'

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Californian lilac 'Cynthia Postan' care guide

Moderate regular watering, allowing brief slight drying between soakings
Watering: Full sun
Sunlight: Information to be completed
Ideal temperature

Watering

Moderate regular watering, allowing brief slight drying between soakings

Fertilizing

Balanced perennial feed every four weeks from spring through summer

Pruning

For free-standing plants: Usually little pruning is needed. Lightly shape if necessary, removing dead, damaged or diseased shoots. Prune after flowering. For wall-trained specimens: On established wall-trained shrubs, shorten sideshoots to two to four buds from the framework; remove shoots growing towards the wall. Prune annually after flowering on last-year growth, or in late winter or early spring on current-year growth.

Propagation

Root semi-ripe cuttings in mid- to late summer

Growing

Grow in fertile, well-drained soil in full sun with shelter from strong, cold winds. Lime tolerant but may become chlorotic on shallow chalk soils. See ceanothus cultivation

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