Dieffenbachia
Dieffenbachia
The Dieffenbachia, commonly known as Dumb Cane, is a striking tropical perennial known for its large, pointed, and ovate leaves that feature beautiful patterns of cream, yellow, and green. This fast-growing plant adds a touch of the tropics to any indoor space, though it requires a bit of attention to moisture and light levels to truly thrive.
Light
Bright Indirect
Water
Moderate
Difficulty
Moderate
Humidity
Moderate
Pet Warning
Contains raphides (calcium oxalate crystals). If ingested, it causes intense burning and swelling of the mouth, tongue, and throat, which can lead to temporary loss of speech. Keep away from cats, dogs, and children.
Care Guide
Dieffenbachia Care Guide
Light
Place your Dieffenbachia in a spot with bright, indirect sunlight. Too much direct sun will scorch the leaves, while too little light will cause the variegation to fade and the plant to become leggy.
Watering
Water when the top 1-2 inches of soil feel dry. Ensure the pot has drainage holes, as this plant is susceptible to root rot if left in standing water. Reduce watering significantly in the winter.
Humidity and Temperature
Dieffenbachia prefers temperatures between 65°F and 80°F. Avoid cold drafts from windows or air conditioners. It enjoys higher humidity; consider misting the leaves or using a pebble tray if your home is dry.
Pruning
If the plant becomes too tall or leggy, you can prune the top to encourage bushier growth. Always wear gloves when pruning due to the toxic sap which can irritate the skin.
Common Issues
- Yellow leaves: Usually a sign of overwatering or underwatering.
- Drooping: Often indicates the plant is thirsty or exposed to cold temperatures.
In-Depth Care & Growth
Feeding & Soil
Fertilizer
Balanced liquid houseplant fertilizer (20-20-20)
Soil
Well-draining, peat-based potting mix.
Physical Attributes
Mature Size
3 to 6 feet tall
Growth Rate
Fast
Propagation
Stem cuttings, air layering, and division.