90 - 110 days. 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 48-96" tall with dazzling, golden bushels of 3" daisy-like blooms. Maximilian seeds are an ideal grow 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.