← Browse all plants

Dieffenbachia (Dumb Cane)

Dieffenbachia spp.

Dieffenbachia (Dumb Cane)

Dieffenbachia, also known as Dumb Cane, is a popular houseplant valued for its dramatic, variegated foliage and easygoing nature. Native to Central and South America, this tropical plant features broad, oval leaves often marked with creamy white, yellow, or lime-green patterns depending on the cultivar.

It’s fast-growing and tolerant of a variety of indoor conditions, making it a favorite in homes and offices. However, it does contain calcium oxalate crystals in its sap, which can be irritating if ingested — hence the nickname “Dumb Cane,” referring to temporary speech loss in extreme cases (though rare in modern home exposure).

With proper light, watering, and care, Dieffenbachia can grow to impressive indoor heights and offers a lush, jungle-like aesthetic with minimal effort.

Quick Info

  • Light: Medium
  • Water: Medium
  • Size: 3–5 feet tall indoors
  • Humidity: Moderate
  • Temp: 65–80°F (18–27°C)
  • Flowering: Yes
  • Type: Tropical
  • Dog Safe: No
  • Cat Safe: No
  • Kid Safe: No

Toxicity Info

  • Dog Safe: No
  • Cat Safe: No
  • Kid Safe: No

Notes for Pets: Toxic to pets if ingested

Notes for Kids: Keep away from small children

Care Instructions

  • Place in bright, filtered light — too much direct sun may scorch leaves.
  • Keep soil lightly moist; allow top inch to dry between waterings.
  • Use a well-draining potting mix with some peat or coco coir.
  • Wipe leaves occasionally to keep them dust-free and glossy.
  • Rotate the pot every few weeks to maintain balanced growth.

Common Problems

  • Drooping leaves: Usually a result of overwatering or underwatering — check soil moisture and adjust your routine.
  • Brown tips: Commonly caused by low humidity or fluoride in tap water. Try using filtered water and increase humidity.
  • Yellowing leaves: Often from natural aging or poor drainage — ensure your pot has good drainage and remove old leaves as needed.

FAQs

No — the sap can irritate the mouth and throat if ingested. Keep out of reach of pets and children.

It can survive in low light but grows best with bright, indirect light.

Water when the top inch of soil is dry. Avoid letting it dry out completely or stay soggy.

Related Plants