Yes. Alcatraz and Calla Lillies are exact same flowers.
Calla Lilies signify magnificence and beauty. Further combined with the attributes associated with the color you choose, Calla lilies can convey a wealth of meaning.
They are excellent houseplants, best for beds, borders, bouquets and flower arrangements. Calla lilies average between 1 and 3 feet high and have a diameter of approximately 1 to 1 and 1/2 feet when fully grown.
Although not considered true lilies, the calla lily is an extraordinary flower. This beautiful plant, available in a multitude of colors, grows from rhizomes and is ideal for use in beds and borders.
Check out some tips on growing calla lilies that will make them sparkle in your yard at Gardeningknowhow.com.