Silphium trifoliatum (Whorled Rosinweed) Unity Grown

Silphium trifoliatum, commonly called whorled rosinweed, is a tall, perennial wildflower commonly found in a variety of open meadow environments growing to three to six feet tall. Defined by its narrow stems, whorled, lance-shaped leaves and profuse, small, yellow flowers which bloom through the late summer months, whorled rosinweed's flowers are attractive to butterflies and a number of important native bees. After flowers begin to turn to seed, the plant is also highly attractive to a number of bird species including goldfinches.

Similar in appearance to many other asters, whorled rosinweed is an important pollinator species, as well as a beneficial and versatile substitute for sunflower, and Silphium trifoliatum grows well in a variety of open woodland conditions, pollinator gardens, or open meadows.