Watering:
Water when the soil feels dry about 1 inch below the surface.
Fertilizer:
Very little fertilizer is required. Use a diluted solution of a balanced fertilizer (10-10-10) once a month in the springtime and throughout the summer.
Re-potting:
Repot the plant every two years in late winter or early spring. A mix designed for cacti and succulents is ideal. Use a pot that is large enough.
Temperature:
A Crown of Thorns plant is a heat-loving plant and does well in temperatures between 13 to 35 degree Celsius.