The calla lily (Zantedeschia aethiopica) is a summer-flowering perennial with trumpet-like flowers and lush, bright green leaves. The tropical plants are popular for bringing abundant color indoors and outdoors, but, as most varieties are tender, you should winterize calla lilies to guarantee blooms year after year.
The exotic summer bulbs are frost-tender, which impacts how they want to be treated for winter. They must be lifted and stored over winter in colder climates, while growers in warmer regions can successfully overwinter calla lilies outdoors.
