Euphorbia milii (Crown of Thorns)

Euphorbia milii, the crown of thorns, Christ plant, or Christ thorn, is a species of flowering plant native to Madagascar.

Plant care: Provide your crown of thorns plant with bright, direct sunlight with warm temperatures 

Water: avoid overwatering when the soil is still wet. Can tolerate underwatering but the leaves will drop.generally it needs to be watered once a week or more.