75 Days to maturity. Helianthus annuus. Santa Fe Sunset Sunflower Seeds: Non-GMO. Hybrid. Ornamental. Annual. Santa Fe Sunset F1 hybrid is full-faced brown-headed sunflower excellent for sun-filled gardens! This pollen-less hybrid has a stunningly unique color that truly resembles a gorgeous sunset. This is the perfect sunflower for any summer garden or kitchen table.