About
Herbstsonne' is a tough herbaceous perennial to 2m in height, with branched stems bearing single flower-heads with golden-yellow rays and greenish-yellow disk.
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, Partial shade
Soil typeChalk, Clay, Loam
Soil pHAcid, Alkaline, Neutral
Soil moistureMoist but well-drained
AspectSouth-facing, East-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 usesCottage and informal garden, Prairie planting
Care notes
CultivationEasy to grow if given full sun or partial shade and a moderately fertile soil that is moist but well-drained; a good choice for improved clay soils
PruningDeadhead faded flowers
PropagationPropagate by division in spring or autumn
Pest resistanceGenerally pest-free
Disease resistanceGenerally disease-free