bipinnatus is usually pink or white. The tuberous perennial form is the chocolate-scented burgundy C. atrosanguineus, and you should grow this cosmos as you grow a dahlia. The majority of ...

Flowers from this species grow to be 4 to 7 feet tall. Cosmos bipinnatus: A mix of purple, pink, and white flowers, the blooms of C. bipinnatus range from 1 to 6 feet in height. Cosmos ...