Silphium mohrii

A more manageable size than some of it's giant close relatives, the Shaggy Rosinweed from the prairies of South Eastern USA makes a strong perennial to about 1.5m; very useful for its long display of slightly fragrant, light-yellow, 5cm wide daisy flowers from mid summer into early autumn. These are borne on strong, branched stems above large hairy basal foliage and are loved by pollinators. Happy in hot dry conditions, it enjoys more moisture too. For any reasonably drained soil in sun.