Calibrachoa Superbells® Holy Smokes!®, also known as Million Bells. This lovely low-maintenance annual has an abundance of small petunia-like flowers all season on cascading growth. The flowers are fun and flirty, with a soft yellow base overlain with blue-purple splotches. Calibrachoa do not like to have constantly damp soil. They will do well in the ground only with good drainage. For most gardeners containers are the best use for Calibrachoa. Calibrachoas are not classified as deer resistant however, deer to do not seem interested in grazing on them.