Add dramatic color to your garden and bouquets with this stunning sunflower. A branching variety, Rouge Royale produces a multitude of deep burgundy-red, 4-5 in. flowers with dark centers. The flowers are pollen-free and a cheerful addition to garden borders. Moulin Rouge Sunflower grows 5-6 ft. tall. Easy to grow and showy, sunflowers are a great addition to the garden, and a favorite in children 's gardens. Sunflower seeds can be directly sown into the garden. For best results, plant in full sun. 90 DAYS.