Why Does My Dieffenbachia Have Yellow Leaves?

Do you water your Dieffenbachia too often or very rarely?

Did you provide a warm environment for your plant?

Is your plant placed away from the light source?

Are there any other symptoms of an infection, like wilting, discolored flowers, fungal growths, etc?

Did you feed your Dieffenbachia with high-nitrogen fertilizer?

The leaves may change color because of underwatering or overwatering your plant. Since dieffenbachia is a potted plant, it is vital to give your plant the amount of water it needs because it’s not getting it from rain. If the soil is too wet, reduce the number of times you are watering your plant since too much water can cause the roots to drown and leaves to yellow. If the soil is too dry, start watering it more regularly or your plant will die, leaves turning yellow and then brown.

Houseplants prefer warm temperature and if it gets really cold, the leaves of the plant are affected. If your houseplant is on a window ledge or near an air conditioner during the winter season, make sure to place it somewhere where it gets bright light but doesn’t get too cold or drafty.

If your plant is placed in the middle of the room away from a light source, it’s best to move it to the window sill, where it can get direct sunlight during the day. If it is already on the sill, check if something is blocking the light. During the winter season, you can give additional artificial light to make sure your plant leaves don’t change color.

Yellow patches on the leaves can be a result of an infection. An infection will not only make the leaves yellow, but it will also discolor the flowers and deform the stem. If the infection has spread throughout the plant, it is best to move the plant container away from other plants or change the pot entirely. Make sure to cut the leaves that have turned yellow and sterilize the tools before using them on other plants.

Your Dieffenbachia may be changing color because it is not getting enough nutrients, especially nitrogen. Make sure to fertilize your plants with a diluted houseplant fertilizer regularly to prevent the leaves from yellowing.

Dieffenbachia is one of the most popular houseplants because it lives for a long time. But like all living things, it eventually starts aging. The green leaves turn to yellow and this process is completely normal. Eventually, the leaves will simply fall off. When all the leaves fall off, it is a good idea to trim the stems and cut back foliage to spur new growth.