About
A deciduous perennial forming spreading clumps of sturdy, upright stems to 1.5m tall clothed in broad, lance-shaped leaves up to 16cm long. In summer the stems are topped with flat, wide heads of small, yellow-centred white flowers that are followed by silvery, fluffy seedheads in autumn.
About the genus
A genus of rhizomatous or woody perennial herbs with alternate green leaves and clusters of aster-like white flowers with yellow centres
Growing conditions
SunlightFull sun
Soil typeChalk, Clay, Loam, Sand
Soil pHAcid, Alkaline, Neutral
Soil moistureMoist but well-drained, Well-drained
AspectEast-facing, South-facing, West-facing
ExposureExposed, Sheltered
UK hardinessH6
Plant details
Plant typeHerbaceous Perennial
HabitClump forming, Columnar upright
FoliageDeciduous
Height1-1.5 metres
Spread0.5-1 metres
Time to full height2-5 years
Suggested usesCottage and informal garden, Prairie planting
Native toE North America
Care notes
CultivationGrow in moderately fertile, moist but well-drained soil in full sun or partial shade
PruningCut back in late autumn or early spring
PropagationPropagate by division
Pest resistanceMay be susceptible to slugs, snails, leaf and bud eelworms and aphids
Disease resistanceGenerally disease-free