98-105 days. Easy Wave Series petunia seeds grow one of summer's most famous and exciting bedding, trailing, and hanging plants. Easy Wave Series seeds promise your home or garden elegant petunias with sharp contrasting blooms available in a variety of classic and contemporary seasonal colors. Easy Wave Series petunias trail 24-36 inches wide and are a perfect grow to hang from porches, window sills, or to mound around a leafy summertime deciduous. Easy Wave Series petunia seeds grow in many gardens prone to hot, humid summers and will keep the bees and humming all the way through summer. Pelleted seeds.