Dieffenbachia is best grown as an indoor plant in bright, indirect sunlight. Plant it in fertile, well-drained potting soil with a high peat content. As a tropical plant, it will do best in high humidity. One way to provide this is to place the pot on a tray of pebbles that is kept wet. Misting the leaves can help during the dry winter months.
Like many indoor houseplants, overwatering is a common problem with this plant. Allow the top 2 inches of potting soil to dry out completely before watering thoroughly so that moisture drains through the bottom of the pot. If you wish, lower, weak leaves can be removed as the plant grows, creating a specimen resembling a small palm with an arching canopy.
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