Calla lilies are flowering plants in the Araceae family that are native to southern Africa. The price for calla lilies varies depending on the type of flower is sold. Pink calla lilies and red calla lily sangria can be purchased anywhere from $3 to $6 each or they can be purchased in bulk such as 10 for $25 to $40. Wholesale clubs such as Sam's club sells 150 stems for $186 to $210. The black calla lily can be purchased anywhere from $42 to $50.