How Do You Care For Calla Lily Bulbs?
Calla lilies are tender summer blooming perennials. Not true lilies and instead grown from an underground rhizome, calla lilies are a genus belonging to the arum family. With their aversion to cold, calla lilies are overwintered in the ground only in USDA Zones 8b through 11. They must be containerized or dug up and stored indoors over winter in cooler climes. Calla lily rhizomes can be planted back in the ground or their containers brought outdoors again in the spring after the last threat of frost has passed. Keep the soil around calla lilies lightly and evenly moist at all times, never allowing more than the top inch or so of soil to dry out. Dig up your calla rhizomes in the fall after blooming has finished and the top foliage is dying back. Cut off the top foliage at the soil line and compost or discard. Wash the rhizome off to remove any soil and lay out on a stack of newsprint to dry and cure for several days. Place the dry rhizomes in a paper bag, rolling the edges closed and s
