Ferry-Morse 1950 Sunflower Annual Flower Seeds, American Giant Hybrid (1 Gram Packet)
Summer annual. If you are looking for the biggest and tallest sunflower, you have found it. Reaching up to 16 feet, these 10 inch blooms make perfect competition flowers. The GIGANTIC blooms are supported on sturdy stocks with large leaves. Excellent for tall blooming backgrounds and screens for unsightly places. Harvest seed by cutting flower heads when backs are yellow, then hanging downward in a warm, dry place. After all danger of frost, sow seeds in open ground well exposed. Cover with 1 inch soil. When plants are 4 inches tall, thin to one plant every 18 inches. Needs lots of water.