Important! Dieffenbachia contains oxalic acid and calcium oxalate crystals that can cause burning and swelling of the lips, tongue, and throat. The poisoning is rarely fatal to humans, but you should contact your GP or HHS24 if any portions of the plant are chewed or ingested. It can cause difficulty speaking and swallowing (hence the "dumb cane" common name), and nausea, vomiting, and diarrhoea. Dieffenbachia is sometimes fatal to pets and livestock. Remember to wear gloves when exposure to the sap is possible.
Dieffenbachia plants appreciate bright light during the winter months. During the growing season, the plant prefers dappled shade or indirect light.
During the growing season, Dieffenbachias like regular moisture and do not want to dry out. A large dieffenbachia might need to be watered twice a week. In the winter, cut back on the water.
Temperature and Humidity
This plant likes above-average warmth. If the temperature drops below 60 degrees Fahrenheit or if the plant is exposed to cold drafts, it is likely to lose lower leaves and assume a palm-like appearance.