Giant plants produce huge flowers and seed heads. Tall plants make excellent summer privacy screen or background plants.
Birds love the seeds.
A real conversation piece. Leave approximately 2 feet between plants. Approximately 2 weeks, depending upon soil warmth and weather conditions. Keep soil moderately moist during germination. Ed's Special Advice Largest flowers and tallest plants are obtained when sunflowers are grown in full sun, in somewhat rich soil kept fairly well watered.