Dieffenbachia

How to care for dieffenbachia

• Light: Prefers bright, indirect light; direct sunlight can scorch its leaves. Tolerates medium light, but variegation may be less pronounced.
• Water: Water thoroughly when the top 1-2 inches of soil feel dry. Allow the soil to dry out slightly between waterings to prevent root rot.
• Soil: Needs a well-draining, rich potting mix. A standard houseplant mix amended with perlite or orchid bark works well.
• Temperature: Thrives in warm temperatures between 65-80°F (18-27°C). Protect from cold drafts and temperatures below 60°F (15°C).
• Humidity: Enjoys moderate to high humidity. Occasional misting or a pebble tray can help, especially in dry indoor environments.
• Fertilizer: Feed every 2-4 weeks during spring and summer with a balanced liquid fertilizer diluted to half strength. Reduce or stop feeding in fall and winter.
• Propagation: Propagated by stem cuttings or air layering. Cuttings can be rooted in water or moist soil; always wear gloves when handling.

Is dieffenbachia toxic to pets?

Not pet-safe. Highly toxic to cats, dogs, and humans, causing intense oral irritation, pain, swelling, and temporary loss of speech ('dumb cane') due to calcium oxalate crystals. See our guide to toxic plants for cats and dogs.

Common problems

• Yellowing lower leaves: Often a sign of overwatering. Allow the soil to dry out more thoroughly between waterings and ensure good drainage.
• Brown, crispy leaf edges or tips: Can be caused by underwatering, low humidity, or fluoride in tap water. Increase watering consistency, raise humidity, or use filtered water.

Did you know?

The common name 'Dumb Cane' comes from the temporary speechlessness that occurs if the sap is ingested, irritating the vocal cords.

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