About
A tall herbaceous perennial producing a mound of large, smooth, blue-grey leaves. The flowering stems rise to 1.5m, carrying yellow-petalled daisy flowers with central dark brown to black cones from midsummer to mid-autumn.
About the genus
Rudbeckia may be annuals, biennials or rhizomatous herbaceous perennials, with simple or pinnately divided leaves and large daisy-like flower-heads with yellow or orange rays surrounding a prominent conical disk
Growing conditions
SunlightFull sun
Soil typeChalk, Clay, Loam
Soil pHAcid, Alkaline, Neutral
Soil moistureMoist but well-drained
AspectEast-facing, South-facing, West-facing
ExposureExposed, Sheltered
UK hardinessH6
Plant details
Plant typeHerbaceous Perennial
HabitClump forming
FoliageDeciduous
Height1.5-2.5 metres
Spread0.5-1 metres
Time to full height2-5 years
Suggested usesArchitectural, Cottage and informal garden, City and courtyard gardens, Prairie planting
Native toUSA
Care notes
CultivationLikes a deep, moist soil in a sunny position
PruningDeadhead faded flowers
PropagationPropagate by division in spring or autumn
Pest resistanceGenerally pest-free
Disease resistanceGenerally disease-free