About
This upright perennial, sometimes grown as a biennial, with greyish-green leaves and sprays of small white flowers in late spring and summer.
About the genus
Centranthus may be annuals or perennials, with usually simple, opposite leaves and terminal clusters of small, trumpet-shaped flowers
Growing conditions
SunlightFull sun
Soil typeChalk, Loam, Sand
Soil pHAlkaline, Neutral
Soil moistureWell-drained
AspectSouth-facing, West-facing
ExposureExposed
UK hardinessH5
Plant details
Plant typeAnnual Biennial, Herbaceous Perennial
HabitColumnar upright
FoliageSemi evergreen
Height0.5-1 metres
Spread0.1-0.5 metres
Time to full height2-5 years
Suggested usesWildlife gardens, Coastal, Cottage and informal garden, Gravel garden, Mediterranean climate plants
Care notes
CultivationGrow in a well-drained soil that is poor to moderately fertile, ideally a chalky or stony soil. Good drought resistance; thrives on walls and in coastal gardens. Needs full sun to flower well.
PruningCut down stems in autumn or if self-seeding is a problem then cut back hard in July after their first flowering
PropagationPropagate by seed sown in spring
Pest resistanceGenerally pest-free
Disease resistanceGenerally disease-free