Troubleshooting
White Konjac problems — and how to fix them
White Konjac (Amorphophallus albus) 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.
Corm rot (soft rot, white rot)
The most serious threat in cultivation, caused by bacteria (Erwinia) or fungi in waterlogged or poorly drained soil. Ensure excellent drainage, avoid overhead watering, and inspect corms when repotting. Discard any soft or foul-smelling tissue.
Failure to emerge from dormancy
Corms kept too cold, too wet, or too dry over winter may rot or desiccate. Store dormant corms frost-free (above 5°C/41°F) in barely damp vermiculite or left in their dry pot. Inspect in late winter; healthy corms feel firm.
Leaf scorch
The single large leaf is susceptible to sun scorch if exposed to direct midday sun. Yellowing or brown-edged leaflets indicate too much light or drought stress. Reposition to dappled shade and ensure consistent moisture.
Prevent white konjac problems before they start
Most white konjac issues are care-mismatch, not bad luck. Dial in the basics:
White Konjac problems — FAQ
Why is my white konjac corm rot (soft rot, white rot)?
The most serious threat in cultivation, caused by bacteria (Erwinia) or fungi in waterlogged or poorly drained soil. Ensure excellent drainage, avoid overhead watering, and inspect corms when repotting. Discard any soft or foul-smelling tissue.
Why is my white konjac failure to emerge from dormancy?
Corms kept too cold, too wet, or too dry over winter may rot or desiccate. Store dormant corms frost-free (above 5°C/41°F) in barely damp vermiculite or left in their dry pot. Inspect in late winter; healthy corms feel firm.
Why is my white konjac leaf scorch?
The single large leaf is susceptible to sun scorch if exposed to direct midday sun. Yellowing or brown-edged leaflets indicate too much light or drought stress. Reposition to dappled shade and ensure consistent moisture.