90-110 Days to maturity. Helianthus maximiliani. Maximilian Sunflower Seeds: Non-GMO. Open Pollinated. Ornamental. Perennial. Heirloom. Maximilian sunflower seeds grow a playful and unique perennial variation on a classic summertime favorite. Maximilian seeds grow hardy, drought-tolerant sunflowers reaching as high as 8 feet tall with dazzling, golden bushels of 3-inch daisy-like blooms. Maximilian seeds are an ideal plant to highlight and accent the back of a garden, fence, siding, or any wide open space. Maximilian sunflower seeds grow fun, floral shop favorites used to brightly excite any seasonal fresh cut arrangement, basket, or bouquet. Approximately 10,000 seeds/ounce.