Crimson, fuchsia, orange, orchid, pink, rose, salmon, scarlet and white are just a few of the colors of impatiens flowers. They also have flowers that are bicolor. The plants will bloom continuously if cared for properly. They prefer shady conditions and will not grow well in full sun. The many different hybrids, single and double, range in height from 10 to 20 inches.
Madagascar periwinkle is an annual in north Florida and a perennial in south Florida.
It will tolerate heat, full sun, and, also important, is resistant to pollution. The plants are about 2 feet high and become covered with pink or white flowers. Trailing or weeping lantana can make a beautiful ground cover or border planting, with small purple or yellow flowers. The more common lantana with flowers in white, yellow, pink and red combinations also survive dry sunny locations. Although it is possible to grow many plants in most city situations, the plants mentioned will survive some of the most unfavorable environments.