Cup Plant – Silphium perfoliatum

The cup plant (Silphium perfoliatum) is a tall, hardy perennial known for its square stem and large, opposite leaves that join around the stem to form “cups.” These cup-like structures catch rainwater, providing a unique water source for small insects and birds, which adds to its appeal as a pollinator plant. It produces bright yellow, daisy-like flowers that bloom in late summer, attracting a variety of pollinators, including bees, butterflies, and even some bird species. Native to North America, the cup plant is often found in prairies, meadows, and along stream banks, where it thrives in moist soils and full sun.