Rudbeckia Hirta. Black-eyed Susan is a biennial or a short-lived perennial that attains a height of one to three feet. Throughout the summer it displays golden yellow flowers two to five inches across with a dark brown center. In the botanical name, hirta, refers to the plant's hairy stem. Plant in a sunny location in ordinary garden soil.
Sow seeds early for best results; germination will occur in two to three weeks. Black-eyed Susan was growing in North America in 1714.
Heirloom seeds are collected from the gardens and grounds of George Washington's Mount Vernon and cleaned and packaged by hand.