Silphium (Silphium Laciniatum) - Commonly known as Compass Plant, this very tall flowering plant demands a second look! It is readily grown from Silphium seeds and what an interesting flower it is. Silphium is often grown with tall grasses such as big bluestem, and it prefers full sun and moist to slightly dry conditions.
Silphium (Silphium Perfoliatum) - This towering, flowering plant is a native of the tall grass prairie and readily establishes from Silphium seeds. It is commonly known as Cup Plant and is a perennial giant which has yellow daisy-like flowers. The flowers measure 3 - 4 inches across and attract bees and birds.