Ferry-Morse 1017 Black-Eyed Susan Perennial Flower Seeds (125 Milligram Packet) This Ferry-Morse seed packet contains Black-Eyed Susans which bloom perennially These seeds are an heirloom variety; guaranteed to grow Plant height: 2-foot to 3-foot; 60-90 days to bloom Space plants 12-inch to 15-inch apart; grows best in full sun Includes one, 125-milligram packet