From The Buffalo Seed Company:
 
"COSMOS (Cosmos bipinnatus) (Flowers July-First Frost) (40 seeds)— Purity pops pure white flowers in the garden and is great as a cut flower. Flowers can reach four inches; plants can reach 2-3 feet tall. Deadheading flowers increases the number of flowers produced. Brings in the pollinators and will brighten up your day. Photo by Sara Worcester."