Care Tips:

Light

Dieffenbachia plants appreciate bright light during the winter months. During the growing season, the plant prefers dappled shade or indirect light.

Use a fast-draining, well-aerated potting mix. Make sure their drainage is good to avoid damaging the roots; they should never be left in soggy soil.

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.

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.

Fertilizer

For best results, feed regularly (every 4 to 6 weeks) with a balanced, diluted fertilizer, such as a 20-20-20.

Potting and Repotting

Repot annually for best results—simply lift the plant as a whole, knock away any old soil and dead material from the roots, and replace it in a larger container. Watch out for signs of stress on the plant, like roots poking out from the surface, crowding, or falling leaves, which could signal that the plant needs repotting. After repotting a dieffenbachia, give it some time to adjust to its new setting. Make sure to wear thick gloves, or else you risk hurting yourself by contact with the milky, mildly toxic sap.