Cut open a fully ripe sapote fruit and retrieve the seed.
Rinse the pulp from the seed and use a knife to remove its firm outer coating.
Fill a 1 qt. growing container with lightweight potting soil. Make sure that the container has holes in the bottom to allow excess moisture to escape.
Plant the sapote seed with the pointed end turned upward. Leave the top 1/2 inch of the seed above soil level.
Water until the soil feels moist, but not wet. Continue to water only when the top 1/2 to 1 inch of soil feels dry.
Transplant the seedling to its permanent growing site when three to four sets of leaves have formed.