I will never forget this plant because I see them everywhere when I was young. This is one of the plants that will make a someone's eyes glow due to the bright contrast of the colors.
Light: Dieffenbachia plants are popular indoor plants largely because they do well in shady conditions, but these plants do appreciate bright light. During the growing season, the plant prefers dappled shade or indirect light. The plant will favor the side facing the light, so periodically rotate the plant to keep its growth balanced.
Soil: Use a fast-draining, well-aerated potting mix. Make sure drainage is good to avoid damaging the roots; they should never be left in soggy soil.
Water: During the growing season, dieffenbachias like regular moisture and do not want to dry out. It is important not to overwater a dieffenbachia, which can cause rot problems. Make sure the top of the soil is fully dried out before watering.
Temperature and Humidity: This plant likes fairly warm conditions, from 65 to 75 degrees Fahrenheit. 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.
Dieffenbachia leaves contain needle-like calcium oxalate crystals called raphides, which can cause severe burning and swelling of animal tissues, both external and internal. This plant is considered moderately toxic, warranting medical attention if symptoms are severe. Remember to wear gloves when exposure to the sap is possible. This plant is best for experienced gardeners who have the skills to keep it alive and help it flourish