About
This free-flowering annual, reaching 15-45cm, with compact form. It bears masses of blooms. 'Rella Sb' is valued in garden settings.
About the genus
Silybum are large annuals and biennials, with basal rosettes of large, lobed leaves and thistle-like purple flower-heads with spiny bracts in summer
Plant details
Suggested usesBedding, containers
Care notes
CultivationFertile moist soil, sun
PruningDeadhead regularly
PropagationSow spring
Pest resistanceAphids, slugs
Disease resistanceGrey mould