How to Split Calla Lilies

Written by melissa lewis
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How to Split Calla Lilies
Calla lilies grow from rhizomes. (Creatas Images/Creatas/Getty Images)

Calla lilies grow from horizontal root stems called rhizomes. A once-thriving, blooming calla lily bed, can stop flowering the next year. This is most likely because the rhizomes have self-multiplied and are overcrowded. Too many bulbs are vying for the same nutrients and water, a very unfavourable situation for the rhizomes. Fortunately, you can easily divide calla lilies and give the extras to friends or family or you can start a new calla lily bed.

Skill level:
Moderately Easy

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Things you need

  • Garden clippers
  • Pitch fork
  • Knife

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  1. 1

    Cut back the calla lily foliage to the ground after flowering when the leaves turn yellow, a sign it's dying back for the winter.

  2. 2

    Lift calla lily rhizomes from the soil. Use a pitch fork and keep in mind that the rhizomes are only planted a couple inches beneath the soil.

  3. 3

    Dry them if the rhizomes are tender in your climate and you are storing them for the winter. Dry them for several days in a shady area before dividing.

  4. 4

    Brush off the dirt and you'll see all the different rhizomes that have grown over the years.

  5. 5

    Divide the rhizomes with a utility or another sharp knife. Each section should have a minimum of one bud or eye. Replant or store as soon as possible.

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