Petunia hybrida Whether you’ve got an eye for contrast or you’re a goth gardener, you’ll love this shadowy petunia. Sophistica® Blackberry is the blackest petunia we’ve grown from seed. Growing 10–15 inches wide and tall, the mounding plants are blanketed with big, velvety blooms in dusky black with subtle purple-red undertones. Add to large containers, hanging baskets or beds for a continual show of these stunning, dark flowers. PP7642436. Germination code: (1) and (6)