Silphium consists of sturdy herbaceous perennials characterized by their elongated stems and straightforward leaves that release a pleasant scent when crushed. During summer and early autumn, they produce airy clusters of yellow flowers resembling daisies.

Silphium

Silphium 'Carpenter's Cup'

Silphium albiflorum

Silphium gracile

Silphium integrifolium

Silphium laciniatum is a robust perennial that can reach heights of up to 3 meters. It features hairy, aromatic leaves that resemble ferns and can grow as long as 50 centimeters, tapering in size along the stem. During late summer to early autumn, this plant produces clusters of narrow, bright yellow flowers, each measuring up to 12 centimeters in diameter.

Silphium laciniatum

Silphium mohrii

This perennial plant grows upright to a height of 2.5 meters, featuring opposite, oval leaves that encircle the stem. In late summer, it produces branched clusters of bright yellow flowers, each measuring 7 to 9 centimeters in diameter.

Silphium perfoliatum

Silphium perfoliatum 'Maya'

Silphium perfoliatum Linn. var. purpureum

Silphium perfoliatum from Great Dixter

Silphium perfoliatum var. connatum

Silphium radula

Silphium simpsonii

Silphium terebinthinaceum is a robust herbaceous perennial that can reach heights of up to 4 meters. It features a basal rosette composed of large, oblong to heart-shaped leaves. The plant produces strong, upright, branching stems that bear numerous yellow, daisy-like flowers from mid-summer through mid-autumn.