Petunia Tidal Wave Silver SeedsCreate a Stunning Landscape with Petunia Tidal Wave Silver Seeds Tall and Striking Petunias for Big Impact Petunia Tidal Wave Silver Seeds bring unparalleled height and volume to any garden, making them the tallest and most robust member of the Wave Petunia Family. With their silvery white blooms measuring 5 to 6 cm, these petunias create a dense, shrublike structure perfect for landscapes, large containers, and even forming mounded hedges. Key