Ferry-Morse 1174 Zinnia Annual Flower Seeds, Giant Double Flow Purity (700 Milligram Packet) This Ferry-Morse seed packet contains zinnia giant white flowers which bloom annually These seeds are half-hardy annuals that grow best in full sun; guaranteed to grow Plant height: 2 1/2-foot; 35-60 days to bloom Plant spacing 12-inch Includes one, 700-milligram packet