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The large and showy dieffenbachia can be the perfect living decoration for the home or office. When you learn how to care for a dieffenbachia plant, you’ll find it to be adaptable to different kinds of lighting and conditions in which you might not expect a dieffenbachia houseplant to grow.
How to Care for a Dieffenbachia Plant
Problems with dieffenbachia plant can be easily overcome in most situations. The most common problem with growing dumbcane dieffenbachia is too much moisture. Overwatering is a common problem with many houseplants and the dieffenbachia houseplant is no exception. Plant the dumbcane in a well-draining soil and water lightly, keeping the soil consistently moist, but not soggy. Check the soil to make sure it is dry an inch down before watering the dieffenbachia plant.
Other problems with dieffenbachia plant may be created by improper lighting. When growing dieffenbachia, most varieties do best in a filtered light situation, where bright to moderate light shines through a sheer curtain or other filtering window cover. Filtered light is particularly important in the spring and summer, when the dieffenbachia houseplant is producing new, tender leaves that are subject to sunburn if the light is too bright or shines directly on the plant.
Rotate the dieffenbachia houseplant regularly to provide adequate light to all sides of the plant and prevent it from reaching toward the light on one side. When growing dumbcane dieffenbachia of various cultivars, check light requirements for the particular plant. Some dieffenbachia plants require low filtered light. Most cultivars do fine with a low light environment; however, growth is slower or stops, but the plant will remain healthy and attractive.
When growing dumbcane dieffenbachia, fertilize twice a month to encourage growth and a healthy plant. A houseplant food high in nitrogen can be applied at half strength.
Dieffenbachia Houseplant Problems
- Browning bottom leaves on the dumbcane dieffenbachia is normal for the plant, snip them off to keep the plant tidy.
- If other leaves appear bleached, with a webby substance on the underside, check and treat the plant for spider mites with insecticidal soap spray or neem oil. Don’t use chemicals for this issue on the growing dumbcane dieffenbachia, as it often makes the problem worse.
- If you notice water droplets on the dumbcane plant, you may wonder “why does my dieffenbachia plant drip water?” This is the byproduct of the transpiration process, which is active in most plants.
- It’s also important to note that the leaves, if chewed or eaten, can cause temporary swelling of the tongue and throat, leading to a temporary loss of speech and the common plant name of dumbcane. While this is usually not serious, it can cause suffocation. Avoid placing the dumbcane plant where curious children or pets might be tempted to taste it.
Watering and Feeding
- Being from the aroid family – with cousins like the Aglaonema, Spathiphyllum and Philodendron – let’s us know dieffenbachia likes humidity and during the summer lots of water. Soil stays moist but not wet. During the winter season watering should be reduced.
- During the primary growing season – March Through October – feed every other week when watering using a complete liquid food. During the winter months use NO fertilizer and water only.
Soil, Potting and Transplanting
- Dieffenbachia prefers a well draining soil. I’ve had excellent results using 2 parts peatmoss and 1 part perlite. An African violet soil mix would work well also.
- A large plant like “Tropic Snow” capable of reaching 4-5 feet can be grown and live in a relatively small pot. The problem is usually not pot size but plant size making the plant top heavy.
- For top heavy plants use a cachepot to stabalize the top heavy plant
- When potting or repotting plants, springtime is best just before the growing season begins. Do not overpot!