If flowers are desired the first season, two year old dormant tubers should be planted in the spring in north Florida and in the winter in south Florida. When tubers become dormant in the fall, they can be dug and stored at 45 degrees F for 6 to 8 weeks then replanted or they can be left in the ground. Three flowers can be obtained on one stem from a 2-year old tuber. Tubers usually develop 2 to 3 leaves initially, which are followed by a flower stalk. If the flower is cut, another leaf will develop from the axils of the first and second leaf, followed by another flower.
Calla lilies provide superb cut flowers.
Under normal conditions in the home, flowers have a vase life of 7 to 19 days. In addition, the foliage of some species is very attractive and can be used in floral arrangements. Among the species that are commercially used as ornamentals, either for landscaping or as cut or pot flowers, are Zantedeschia elliotiana and Zantedeschia rehmannii. Z. elliottiana, with its creamy yellow and golden yellow shades, can be used for cut flowers and as a landscape specimen. As the tuber increases in size and divides, multiple stems develop and eventually these develop into a clump of plants.