About
An erect biennial with bristly stems and leaves and classic daisy-shaped flowerheads, to 60cm tall, from June through to autumn, in warm red shades.
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 typeClay, Loam
Soil pHAcid, Alkaline, Neutral
Soil moistureMoist but well-drained
AspectWest-facing, South-facing, East-facing
ExposureExposed, Sheltered
UK hardinessH3
Plant details
Plant typeAnnual Biennial
HabitColumnar upright
FoliageDeciduous
Height0.5-1 metres
Spread0.1-0.5 metres
Time to full height1-2 years
Suggested usesCottage and informal garden, Patio and container plants, Wildlife gardens
Care notes
CultivationBest grown as half-hardy annuals. Easily raised from seed, plant out in late spring after danger of frost has passed. Will not normally survive the winter's cold and wet
PruningDeadhead spent flowers
PropagationPropagate by seed sown with gentle heat in Spring
Pest resistanceGenerally pest-free
Disease resistanceMay suffer from grey moulds if air circulation is poor during propagation or in the border