80 Days to maturity. Helianthus annuus. Star Chaser F1 Hybrid Sunflower Seeds: Non-GMO. Organic. Ornamental. Annual. Hybrid Star Chaser F1 is a large pollen-less sunflower that will effortlessly brighten up your garden. It is not big enough to be considered a giant variety, however, it is very large and has the added benefit of being allergy-friendly!