Also called Mexican Aster, Cosmos is an old-fashioned flower that is enjoying something of a comeback there days. Like many annuals, it is tough, agreeable, and beautiful and it is easy to grow. An open, branching, sturdy plant, it features pastel-colored, daisy-type flowers with yellow centers. Up to 3 to 4 inches across, the flowers bloom above airy, finely divided, ferny foliage. [From Pennsyvania Garden Guide by Liz Ball]