Lighting: Dieffenbachia Houseplants require medium to high light.
Water: Water Dieffenbachia Houseplants well and then allow the top 2"-3" of soil to dry out before watering again. These plants do best when watered on a regular schedule.
Soil: The best soil for Dieffenbachia houseplants is a rich organic mixture that drains quickly.
Temperature: Dieffenbachia Plants prefer temperatures above 60 degrees. The lower leaves on a Dieffenbachia turn yellow when exposed to cold drafts from doors, windows, or air conditioners.