Petunia Seeds - Double Cascade Series (pelleted)98 105 days. Growing Double Cascade Series seeds promise to excite your garden with larger, fuller, and brighter petunias than any other this season. Eye catching Double Cascade petunias steal the show with spectacular 4 feathering fully double blooms ideal for any fresh cut basket, bouquet, or just attracting butterflies to the garden. Double Cascade Series seeds grow early blooming petunias that will delight your home, patio, or garden late into