Black-eyed Susans

Rudbeckia hirta

Daisy Family

Coneflower, gloriosa daisy

Interesting Facts

Black-eyed Susans are often the first flower to grow in areas destroyed by fire or natural disasters. In some Native American herbal remedies, an infusion of Black-eyed Susan roots has been used to treat colds, edema, and worms. The mixture has also been applied to sores and snakebite wounds, with earache drops being made from the liquid found inside the roots. When planted among other plants or vegetable crops, this flower helps to repel bunnies, deer, and squirrels.

Description

The Black-eyed Susan, scientifically known as the Rudbeckia hirta, is a small flower native to Eastern and Central North America. Though the majority of flowers are perennial, the Black-eyed Susan is a biennial: it only grows leaves and stems the first year and fully blooms the second. It thrives best during summer to early autumn, with some forms being able to complete a seasonal life cycle for up to 5 years.

The average height of a Black-eyed Susan is about 30 in (76cm), with a prickly, rough stem. The leaves are lightly serrated and oval shaped, starting out bigger at the base and narrowing towards the top. The petals on each flower vary in color, ranging from dark orange to bright yellow. Its center is a mahogany brown. Black-eyed Susans grow best in soil temperatures between 60-70F, and are found natively in prairies and open woodlands, attracting smaller birds, butterflies, and bees. 

Black-Eyed Susan brochure