Red Calla Lily, Genus Zantedeschia Stock Image

Calla lily, also known as arum lily, is not a true lily. It belongs to the genus Zantedeschia which originates from South Africa. With huge, exotic looking flower-like spathes now available in a wide range of colours, calla lily is becoming increasingly popular as a house plant as well as a garden and patio plant.Calla lillies flower from early to late summer on sturdy upright stems. Handsome foliage adds to their ornamental value – the lush leaves are wide and bright green, often speckled with white or silver. Most calla lilies are frost tender and the rhizomes or fleshy roots can be stored over winter and then replanted the following spring. The exception is white arum lily (Zantedeschia aethiopica) which is hardy outside in mild areas.