100 AUTUMN BEAUTY SUNFLOWER Helianthus Annuus Flower Seeds BLOOM TIME: Late Summer - Fall HARDINESS ZONE: Annual PLANT HEIGHT: 60 - 72 " . . . PLANT SPACING: 15 - 18" LIGHT REQUIREMENTS: Sun . . . SOIL / WATER: Average - Dry Red, Yellow, and Rust. These 5 - 8 inch flowers in lovely fall shades attract bees, butterflies, and birds.