Zantedeschia (Calla Lily, Arum Lily, Pig Lily)

Calla lilies are easy-to-grow bulb plants whose blooms emerge from rolled and flaring 4- to 6-inch specialized leaves called spathes. Rising from the base of each spathe is a pencil-shaped spike, or spadix, bearing the plant's tiny true flowers. Thick leaves, up to 8 inches long and 5 inches wide, are shaped like arrowheads and frequently bear white markings. Zantedeschia aethiopica grows 3 feet tall and has 4-inch white flowers that bloom year round. Other types may be planted at any time of year to bloom in about two months; they will continue to bloom at two- or
three-month intervals if allowed to rest after each blooming. These types include Zantedeschia elliottiana, which grows up to 24 inches tall and bears 6-inch yellow flowers; and 12- to 18-inch tall Z. rehmannii, with 4-inch pink flowers. There are hybrids with pink, red or yellow blossoms.