Heirloom Maximilian Sunflower gives you the iconic look of Sunflowers but continues to bloom year after year. Illuminating the garden with golden-yellow blooms from summer into fall, and reaching up to 10 ft tall, this perennial Sunflower will quickly become the true backbone of your wildflower meadow or garden. An open-pollinated variety, Maximilian is easy to grow and attracts birds, butterflies and other pollinators all season long. All of the seed we handle at American Meadows is non-GMO, neonicotinoid-free and guaranteed to grow. Perennial.