Wave petunias are a type of petunia known for their long bloom time, ease of care and weather resistance. The first Wave petunia was the Purple Classic, which debuted in 1995.
As of 2015, there are six varieties of Wave petunias: Tidal Wave, Double Wave, Easy Wave, Shock Wave and Cool Wave Pansies. Wave petunias are popular ground covers and trailers for hanging baskets and containers.
Wave petunias come in a variety of bright colors and can be grown from seed. For best results, gardeners should plant seedlings in a sunny location with at least six hours of direct sunlight. The annual flowering plants grow 6 inches tall but spread to 4 feet. Unlike most petunias, Wave petunias do not need deadheading or pruning.