Hardy water lilies can be propagated by dividing their rhizomes in the spring

StepsĀ 

  1. Remove the water lily pot from the pond
  2. Locate the tuber
  3. Cut the tuber with a sharp knife between the “eyes”
  4. Ensure each piece has shoots emerging from it
  5. Replant each division into a container
  6. Place the containers in a shallow, sunny spot in the pond
  7. After a couple of weeks, move the containers to a deeper location