70 Days to maturity. Helianthus annuus. Mardi Gras Blend Tall Sunflower Seeds: Non-GMO. Open Pollinated. Ornamental. Annual. The color of these flowers varies from pale yellows to dark reds and looks stunning in the garden. They are free flowering multiple branched and flowered plants with strong stems. They are ideal for cut flowers. Each flower grows to be 5 inches when bloomed. Approximately 400 Seeds / Ounce.