About
A clump-forming perennial to 1.2m high, with a basal rosette of large, oval-shaped coarsely toothed green leaves. Small, domed, tightly clustered heads of faintly scented, tiny white flowers are borne on stout, branching stalks from late spring into summer.
About the genus
Parthenium includes herbaceous and sometimes woody species grown for their ornamental merit. The genus is represented in gardens by selected species and cultivars suited to a range of growing conditions
Growing conditions
SunlightFull sun, Partial shade
Soil typeChalk, Clay, Loam, Sand
Soil pHAcid, Alkaline, Neutral
Soil moistureWell-drained, Moist but well-drained
AspectEast-facing, South-facing, West-facing
ExposureExposed, Sheltered
UK hardinessH7
Plant details
Plant typeHerbaceous Perennial
HabitClump forming
FoliageSemi evergreen
Height1-1.5 metres
Spread0.1-0.5 metres
Time to full height2-5 years
Suggested usesCottage and informal garden, Prairie planting, Wildflower meadow
Native toCentral and E USA
FragranceFlower
Care notes
CultivationTolerates a range of soils and conditions, but thrives in full sun. A good cut or dried flower
PruningDeadhead after flowering if seed is not required, or seedheads can be left to provide winter structure
PropagationPropagate by seed, sown in a cold frame in autumn, or by softwood cuttings in early summer
Pest resistanceGenerally pest-free
Disease resistanceGenerally disease-free