Dumb Cane

Dieffenbachia | Also known as: Mother-in-law's Tongue | Rating: 1 votes | Print / Pdf

Dumb Cane, well you don't want your plants to be cleverer than you do you!

Diffenbachia, also known as Dumb Cane, is an evergreen plant that tends to be grown for foliage only. However, on occasion it can sport very small, insignificant green-white flowers during the summer months. It can’t cope with the cold, and will not thrive in temperatures lower than 15C, so either needs protecting or bringing inside during the winter months. Be aware that the plant is toxic if ingested, and the sap can also cause irritation to the skin.

Rate it:
Known dangers?
  • yes
Dangers: comments
  • Avoid eating this plant, or you may have severe stomach upset. Its sap may irritate your skin.
Height [m]
  • 1 - 2.5
Spread [m]
  • 1 - 2
Dominant flower colour
  • Inconspicuous or absent
Flower Fragrance
  • No, neutral please
Foliage in spring
  • Green
Foliage in summer
  • Green
Foliage in Autumn
  • Green
Foliage in winter
  • Green
Propagation methods
  • root cuttings
  • layering
  • stem tip cuttings
Growth habit
  • Bushy
  • Acidic
  • Neutral
  • Alkaline
Hardiness zone
  • Z10-11
Heat zone
  • unknown
Winter temperatures [°C]
  • -1 - 4
Heat days
  • 0
  • well-drained
Soil type
  • loams
Sun requirements
  • Full sun
  • Partial shade
  • Sheltered
Standard category
  • Exotic, house plants & other
  • House plants
Grown for
  • Ornamental Foliage
Creative category
  • For Beginners
Garden type
  • Indoor or winter garden
  • Containers
Gardening expertise
  • beginner
Time to reach full size
  • up to 20 years