Vibrant & Versatile Wave Petunias! Plant breeding excellence with extensive impact! The PanAmerican plant breeders changed the face of ornamental gardening when they introduced Wave petunias. Plant performance across all series is simply outstanding and the popularity of the Waves continues to grow. Purple Wave Classic started the spreading petunia trend more than 20 years ago. Gardeners and garden writers across the country continue to take notice. The Waves have evolved into the most outstanding petunia series ever introduced.