About
A reliable perennial, reaching 20-60cm, with clump-forming habit. It produces colourful flowers.
About the genus
Silphium are robust herbaceous perennials with tall stems bearing simple leaves, aromatic when bruised, and loose clusters of yellow, daisy-like flowers in summer and early autumn
Plant details
Suggested usesBorders, cottage gardens
Care notes
CultivationFertile well-drained soil
PruningCut back autumn/spring
PropagationDivide 3-4 years
Pest resistanceSlugs possible
Disease resistanceMildew possible