momiroot

Crown of thorns

Euphorbia milii · Family Euphorbiaceae

Also known as: euphorbia milii, christ plant, christ thorn

Crown of thorns
Photo: Ezra Katz · CC BY-SA 3.0 · Wikimedia Commons
Light
Full sun
Watering
Every 10 days
Difficulty
Easy
Pet-safe
No, keep it away from cats and dogs

Care

Where to put it

The sunniest windowsill in the house.

Light

Full sun for flowers all year. Wear gloves: the sap irritates.

Watering

Water when the compost is dry; it drops leaves if kept too dry for long.

About the plant

The crown of thorns has spiny stems and small red, pink or yellow flowers that appear almost all year. It is resistant to sun and drought and widely used as a hedge in Brazil.

Origin

Native to Madagascar, where it grows in dry, sunny areas.

What it likes

  • Full sun
  • Infrequent watering
  • Free-draining compost

What it dislikes

  • Shade
  • Soggy compost
  • Severe cold

Did you know?

The coloured parts that look like petals are bracts, and the plant's latex irritates skin and eyes.

Listed in

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