One of my nieces has had a greenhouse the past two years; I order purple and white petunias in hanging baskets. This year, she informed me that she hadn't been happy with the white variety, so she had changed to "silver" ones. They are pretty white with purple veins. The basket had grown pretty leggy, so I put it on the floor of the back porch. The flowers are thriving. I pulled up a chair and sat with my telephoto lens in early evening, capturing many pretty petunias.