The modern multifloras possess slightly larger flowers and are more compact than older multiflora varieties. Some of the modern multifloras include the Madness, Carpet, Polo, and Celebrity Series. Purple Wave' is a 1995 All-America Selection. Plants grow only 4 to 6 inches high, but can spread 2 to 4 feet. Purple Wave' is an excellent choice for hanging baskets and as an annual groundcover.
Petunias are easy to grow if a few requirements are met.
Petunias perform best in a sunny location. They also require a moderately fertile, well-drained soil. Use about 2 to 3 pounds per 100 square feet of planting space. When buying petunias in the spring, select compact, stocky plants. Tall, spindly plants take considerably longer to recover from transplanting.