Troubleshooting
Meyer's Cone Plant problems — and how to fix them
Meyer's Cone Plant (Conophytum meyeri) 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.
Sheath rot
Moisture trapped in the old papery sheath during summer causes the developing new body to rot before it can emerge. Ensure complete water deprivation during summer; if sheaths become wet, gently peel them away and allow the body to dry.
Etiolated, elongated bodies
Caused by insufficient light. The compact, rounded form is only maintained with direct sun. Move to a brighter position; the existing stretched growth cannot be reversed but future growth will be more compact.
Springtails or fungus gnats in winter
Occur when compost remains too moist. Allow thorough drying between waterings and use a grit top-dressing to reduce surface moisture. Springtails are mostly harmless; fungus gnats can damage delicate shallow roots.
Prevent meyer's cone plant problems before they start
Most meyer's cone plant issues are care-mismatch, not bad luck. Dial in the basics:
Meyer's Cone Plant problems — FAQ
Why is my meyer's cone plant sheath rot?
Moisture trapped in the old papery sheath during summer causes the developing new body to rot before it can emerge. Ensure complete water deprivation during summer; if sheaths become wet, gently peel them away and allow the body to dry.
Why is my meyer's cone plant etiolated, elongated bodies?
Caused by insufficient light. The compact, rounded form is only maintained with direct sun. Move to a brighter position; the existing stretched growth cannot be reversed but future growth will be more compact.
Why is my meyer's cone plant springtails or fungus gnats in winter?
Occur when compost remains too moist. Allow thorough drying between waterings and use a grit top-dressing to reduce surface moisture. Springtails are mostly harmless; fungus gnats can damage delicate shallow roots.