Hibiscus are large shrubs or small trees that produce huge, colorful, trumpet-shaped flowers over a long season. They are generally divided into four groups: Hardy Hibiscus, Rose of Sharon, Tropical Hibiscus, and all the various species of Hibiscus.
Hibiscus are deciduous shrubs with dark green leaves; the plants can grow to 15 feet tall in frost-free areas. Flowers may be up to 6 inches diameter, with colors ranging from yellow to peach to red. Hibiscus can be planted singly or grown as a hedge plant; they can also be pruned into a single-stemmed small tree. The flowers are attractive to butterflies and hummingbirds.