Senna hebecarpa, commonly known as wild senna, is a tall, bushy perennial with deep green compound leaves and a large number of buttery-yellow pea-like flower clusters that begin blooming in mid-summer, and attract all sorts of butterflies and other pollinators. As the summer turns to fall, the flowers then grow into long, dark brown seed pods, which add winter interest, and are attractive to foraging birds.
Wild senna can grow to 4-6' tall and about 3-4' wide, and their horizontal root systems make them able to easily stand up to strong winds and ideal for growing in hedges or borders. Senna hebecarpa thrives in medium-moist, well-drained soils, but is not picky about soil type, tolerating both shallow, rocky, nutrient poor soils and organically rich loamy soils. Though wild senna can tolerate part shade, it puts on its best floral display when given full sun.