Silphium perfoliatum Brookgreen Gardens Though sometimes grouped botanically with

Though sometimes grouped botanically with Cyrilla racemiflora

It is native to eastern North America

an ornamental-edible border

and expect heat

Do not plant in shade or in rich or poorly drained soil

Silphium perfoliatum Brookgreen Gardens Though sometimes grouped botanically withCup plant is a giant of the summer prairie, a statuesque perennial that rises on stout, square stems to eight feet or more and lifts a crown of bright yellow, daisy like flowers above the border. The name comes from a quirk of the foliage: the large, coarse leaves are perfoliate, joined in pairs around the stem to form a shallow cup that catches and holds rainwater. Silphium perfoliatum belongs to the sunflower tribe of the aster family, Asteraceae,