50 LEMON QUEEN SUNFLOWER Helianthus Annuus Flower Seeds BLOOM TIME: Early Summer - Early Fall HARDINESS ZONE: Annual PLANT HEIGHT: 60 - 72" . . . PLANT SPACING: 18 - 24" LIGHT REQUIREMENTS: Sun . . . SOIL / WATER: Average - Dry 12 inch lemon yellow flowers. The Lemon Queen Sunflower blooms in 100 days from seed planting. It attracts bees, butterflies, and birds.