Maximilian Sunflower (Helianthus maximiliani), 250 Certified Pure Live Seed, True Native Seed FREE SHIPPING Number of seed is Pure Live Seed, not bulk Species is US Native, not introduced alien We grow the seed so we control quality A 3 to 10 tall native perennial with 3 to 4 wide bright yellow flowers. A long flowering plant preferring dry to medium soils in full sun sites.