Petunia hybrida Arguably the most popular, easy care, and floriferous bedding plants available, the Wave family of plants have revolutionized ornamental gardening. These low-growing, spreading plants are simple to grow, extraordinarily durable, require no grooming, and produce an uncanny amount of color. The Easy Wave series plants grow to a mounding, 6–12 inches tall, spreading to 39 inches wide. Germination code: (1) and (6)