These mixtures were developed for specific areas of the United States and Canada. They are composed of annual and perennial wildflowers that are native to the region and when available, are from seed sourced from that region to insure maximum adaptability. Use these mixes for projects where 100 percent native species are required or preferred. Please note that each planting rate per acre is shown as a range. Use the higher planting rate for maximum color, when adequate soil preparation or weed control is not possible and/or there is no existing vegetation present. The lower planting rate is suitable for broadcast seeding as an accent or if there is existing vegetation present. If you are unsure of what you are going for, don't over think it, just get some seed bombs out there and add more another day.