Transplanting a 40-Year-Old Crown of Thorns (Euphorbia milii)

Nerlie inherited a 40-year-old crown of thorns and wanted to repot it, asking if cactus soil was suitable and how to handle the move safely.

Key Advice

• Yes, use cactus/succulent soil for excellent drainage.
• Wear gloves and long sleeves: Euphorbias exude a milky latex sap that irritates skin and eyes.
• Minimize root disturbance: Gently loosen the root ball; don't shake off all old soil.
• Winter care: Keep indoors in a bright, cool (above 50°F), dry spot during East Coast winters.

After Repotting

1. Wait a week before watering to let any root wounds callous.
2. Water sparingly—only when soil is completely dry.
3. Provide maximum light; a south window is ideal.

With careful handling, this heirloom plant can thrive for decades more.