Arrowhead (Sagittaria latifolia), 100 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 3 tall native perennial with whorls of three-pedaled white flowers. A summer flowering wetland plant requiring standing water or wet soil and does best in full sun.