Zantedeschia fall into two main types: hardier outdoor forms, often called arum lilies, with striking white flowers; and the more tender forms, typically with white-spotted leaves and pretty flowers in yellow, orange, pink or dark purple. These are often called calla lilies. I first fell in love with the Arums when I was high school. I remember seeing them at the local florist. I was so attracted to her mild scent and pure white petal (Called a Spadex btw). They last for ages. The smaller Callas come in lots of different colours but I can never steer away from my first love, The Arum.