Dieffenbachia - 4” pot This is the perfect plant to add a tropical feel to your work space or office and it is considered to be one of the easiest indoor plants to grow. It is native to Mexico and prefer filtered light and more humid conditions, so an occasional misting may be neccessary in the dryer months. Dieffenbachia have been found to clean both xylene and toluene from the air. Also known as Dumb Cane. PLEASE NOTE: Many tropical plants are toxic to both pets and humans if the leaves or other parts of the plant are ingested. Dieffenbachia is one of the plants that you should keep out of reach of your pets and small children.