Coral Cactus Brown Spots: Causes and Solutions

What the Spots Mean

The dry brown patches on your coral cactus (Euphorbia lactea crest) are dead tissue caused by root damage from improper watering. They are not a disease and will not spread if you correct the watering.

Don't Cut Them Out

Removing the spots only creates open wounds. The plant will look like Swiss cheese. Live with the cosmetic damage.

Fix the Root Cause

• Remove the pebble top-dressing. It prevents you from feeling soil moisture.
• Ensure the pot has a drainage hole. If not, repot into one that does.
• Water only when the soil is dry halfway down the pot. Then water thoroughly.
• Bright light: Place near a sunny window, but avoid harsh afternoon sun.

New growth will be healthy if the roots recover. The old spots remain as a reminder.