Purple trillium is botanically named Trillium erectum, and one of the names it is commonly called is Wake-Robin or Red trillium. The purple trillium is a perennial plant that will return for many seasons. The plant has native to northeastern states and appears in late April or May. Purple trillium will bloom in mid to late spring. The foliage of the plant has bracts below the flower base, and the leaf grows in three at the top of the stem and forms a whorl. The leaves are bright green, most extensive in the middle of a diamond shape and with prevalent veins. The flower stem grows outward rather than up, and the petals of the flowers grow in three curving back and with large stamens. The leaves can range from 1/2 to 1 1/2 inch in size. When the seed pod appears it attracts ants who then become seed distributors and birds will eat the seeds. Left alone this plant will spread on its own over time. The flower likes partial shade. The plant should be planted in well-draining soil that is a little acidic since it grows wild in wooded areas. This is a flower that has been used as a medicinal in the past and leaves eaten as greens through the roots and seeds can have toxic effects if consumed. In some states like Michigan where the plant grows wild, it is on the endangered list. The flower should not be taken from the wild and often will not transplant well into the different soil.