Troubleshooting
Maughan's Cone Plant problems — and how to fix them
Maughan's Cone Plant (Conophytum maughanii) 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.
Summer dormancy rot
This is the principal cause of death. Any moisture on or around the roots during summer dormancy can cause rapid rot under the protective sheath. Store in a dry, bright location with zero watering from approximately May to August. If rot is found on unpotting, remove cleanly, dust with sulfur, and dry for several days before replanting.
Root mealybugs
Conophytum are particularly susceptible to root mealybugs, which go undetected until the cluster wilts despite correct watering. Unpot annually or every two years to inspect. Treat by washing roots, soaking in a dilute imidacloprid solution, and repotting in fresh sterilised grit.
Poor cluster development
Slow clumping or failure to offset is usually linked to insufficient light, incorrect watering timing, or poor soil drainage. Ensure the plant receives full direct sun, is completely dry through summer, and that the soil drains instantly. A well-rested plant in full sun will offset more readily.
Prevent maughan's cone plant problems before they start
Most maughan's cone plant issues are care-mismatch, not bad luck. Dial in the basics:
- Common maughan's cone plant problems — our other guide for the same plant
- What's wrong with my plant? — the diagnosis apps compared
- Maughan's Cone Plant watering schedule
- Maughan's Cone Plant light requirements
- Best soil mix for maughan's cone plant
- Maughan's Cone Plant temperature & humidity
- Full maughan's cone plant care guide
Looking for maughan's cone plant in general rather than its problems? Read the full maughan's cone plant care guide — light, water, soil and feeding.
Maughan's Cone Plant problems — FAQ
Why is my maughan's cone plant summer dormancy rot?
This is the principal cause of death. Any moisture on or around the roots during summer dormancy can cause rapid rot under the protective sheath. Store in a dry, bright location with zero watering from approximately May to August. If rot is found on unpotting, remove cleanly, dust with sulfur, and dry for several days before replanting.
Why is my maughan's cone plant root mealybugs?
Conophytum are particularly susceptible to root mealybugs, which go undetected until the cluster wilts despite correct watering. Unpot annually or every two years to inspect. Treat by washing roots, soaking in a dilute imidacloprid solution, and repotting in fresh sterilised grit.
Why is my maughan's cone plant poor cluster development?
Slow clumping or failure to offset is usually linked to insufficient light, incorrect watering timing, or poor soil drainage. Ensure the plant receives full direct sun, is completely dry through summer, and that the soil drains instantly. A well-rested plant in full sun will offset more readily.