Silphium

Silphium mohrii forms sturdy clumps of narrow, dark green foliage topped with large, bright yellow flowers in midsummer. Its upright growth habit adds striking structure to prairie-style plantings and perennial borders. This hardy perennial attracts bees and butterflies while providing vibrant colour over a long flowering season.

Watering and Care

Silphium mohrii becomes highly drought tolerant once established. During its first growing season, regular watering helps develop a strong root system. Mature plants usually require little supplemental irrigation.

Maintenance

This prairie perennial requires minimal care. Old stems can be removed in autumn or spring, while the seed heads provide winter interest and wildlife value.

Location

Plant in full sun with well-drained soil. It thrives in prairie-style plantings, naturalistic borders, and dry meadow gardens.

Tip

Its deep roots make it an excellent choice for sustainable gardens designed to cope with hot, dry summers.

Silphium mohrii gives flower beds, borders, and natural-style gardens summer height and structure with bright yellow flower clusters. Especially decorative in natural-style plantings or combined with grasses and perennials.

The blooms attract bees and butterflies, providing visual highlights.