Clasping Coneflower (Rudbeckia amplexicaulis), 1000 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 1 to 2 tall native annual with showy 1  to 2 wide yellow flowers. A summer flowering plant that grows best in dry to medium soils in full sun or part shade.