Dieffenbachias are easy houseplants that tolerate a wide range of conditions. The name Dumb Cane reflects the fact that the acrid sap will burn the mouth and numb the throat to the extent that it may even paralyze the vocal cords. Some people may get a skin rash from the plants sap. This plant can be toxic if eaten. Plants may reach up to 6 feet (1.5 m) tall bearing dark green leaves with irregular zones of creamy white along the primary lateral veins. Leaves will reach 20 inches (47 cm) long by about half as wide. Petioles are 12 inches (30 cm) long and winged along about half of their length. They make a tough and durable houseplant that will withstand low light conditions