Calibrachoa Superbells Plum also known as Million Bells, and for good reason. You’ll think there just may be one million flowers on this plant once it gets going. These beautiful plum-colored flowers cover the mounding plants from spring until frost. Vigorous, fast-growing annual that is great for hanging baskets, mixed containers, or in the flower beds. Plant in full sun for best flowering. Calibrachoas are not classified as deer resistant however, deer do not seem interested in grazing on them.