Select a location in your yard for the centella. Add 2 to 3 inches of compost to the soil and work it into a depth of 4 to 5 inches to add organic matter before you plant.
Dig a hole with a shovel as deep as the centella's root ball and twice as wide. Place the centella in the hole and fill it in with soil.
Water the centella well. Apply 3 to 5 inches of water each week to the centella to ensure the soil is constantly moist around the plant's base.
Harvest the leaves of the centella with scissors when they grow from 1 to 2 inches wide. The leaves can be used in salads or dried and ground to prepare a tea.