Cosmos come in many different colors including pink, orange, red, yellow, white, and maroon. They grow fast with a height of 2-6 feet. The flower of a cosmos is 3-5 inches big. Cosmos are annuals and need to be replanted each planting season.
Plant cosmos seeds in the ground 1/4 inch deep and 12-18 inches apart after the last frost. You can plant indoors in pots and transplant them when they are 3-4 inches tall. It takes about 7 weeks for cosmos to bloom. Cosmos grow best in full sun. Cosmos have a bright color that attracts birds, bees, and butterflies to your garden.