That covers a lot of plants. Flowers bloom on long, slightly curving stems in cream, yellow, coral, orange, and red. Great cut flowers. Originally from Africa. Some varieties have ruffled, double flowers.
Several varieties bloom from late spring until fall.
Easy to grow from seed or divide from established plants. They bloom better in summertime with afternoon shade. These are descendants from wild plants from the eastern U.S., where they line highways for miles at a stretch. Available in pink, red, and white. The white-flowered varieties are grown commercially, dried, and used as an insecticide.