Butterfly and Hummingbird Mix (Mix NS-BH1), 400 Certified Pure Live Seed, True Native Seed (Northeastern US) 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 Butterfly and Hummingbird Mix containing 4 species of native grasses and 15 species of native wildflowers. Flowering period and flower colors are coordinated for full season variety. The number of seeds in a pound of each species is used to calculate the amount of seed of each species that is needed in this mix.