Plant height varies from 10 to 36 inches. African marigolds are excellent bedding plants. Tall varieties can be used as background plantings. Suggested African marigolds for Iowa include varieties in the Inca and Perfection series. African marigolds are also referred to as American marigolds.
Flower colors are yellow, orange, and mahogany-red.
Many varieties have bicolored flowers. Flower heads may be single or double. Plant height ranges from 6 to 18 inches. The French marigolds have a longer blooming season than the African marigolds. They generally bloom from spring until frost.