how to divide calla lily bulbs
How to Divide a Calla Lily. Dividing calla lilies is not difficult. Lift calla rhizomes in fall after the foliage turns brown and pulls away from the roots easily. Slide a shovel under the roots and pry upward to lift the clump.Remove any remaining foliage and brush off the soil. Cut or break apart the rhizome, making sure each section has at least one eye.ost growers prefer to divide calla lilies in spring, especially in warm climates where you can leave the rhizome in the ground year round. In cooler areas, you might prefer to divide the rhizomes in late summer or fall when you dig them up for winter storage.