Troubleshooting
Euphorbia caput-medusae problems — and how to fix them
Euphorbia caput-medusae (Euphorbia caput-medusae) is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Central-stem rot
Overwatering rots the thick caudex from the crown. Water only when fully dry, use a gritty mix, and keep nearly dry in winter.
Stretched, floppy arms
Low light elongates the snaking branches and pales their colour. Move to a full-sun window and rotate for symmetry.
Mealybugs
Hide between the crowded arms and tubercles. Dab with 70% isopropyl alcohol on a swab and re-check after a week for survivors.
Latex sap irritation
Breaking an arm releases caustic milky sap. Wear gloves and eye protection when handling or removing dead branches.
Prevent euphorbia caput-medusae problems before they start
Most euphorbia caput-medusae issues are care-mismatch, not bad luck. Dial in the basics:
Looking for euphorbia caput-medusae in general rather than its problems? Read the full euphorbia caput-medusae care guide — light, water, soil and feeding.
Euphorbia caput-medusae problems — FAQ
Why is my euphorbia caput-medusae central-stem rot?
Overwatering rots the thick caudex from the crown. Water only when fully dry, use a gritty mix, and keep nearly dry in winter.
Why is my euphorbia caput-medusae stretched, floppy arms?
Low light elongates the snaking branches and pales their colour. Move to a full-sun window and rotate for symmetry.
Why is my euphorbia caput-medusae mealybugs?
Hide between the crowded arms and tubercles. Dab with 70% isopropyl alcohol on a swab and re-check after a week for survivors.
Why is my euphorbia caput-medusae latex sap irritation?
Breaking an arm releases caustic milky sap. Wear gloves and eye protection when handling or removing dead branches.