Troubleshooting
Giant Typhonium problems — and how to fix them
Giant Typhonium (Typhonium giganteum) 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.
Tuber rot in wet winters
The most common cause of loss in temperate gardens. In zones 6–7, mulch heavily with 15–20 cm of dry straw or bark after the first frost. In very wet winters or heavy clay, lift tubers after dormancy sets in and store dry in frost-free conditions.
Delayed emergence
This species is a late starter — do not assume the tuber has rotted if it hasn't emerged by late spring. Growth typically begins in mid to late summer in cooler climates. Mark the planting spot to avoid accidental disturbance.
Strong spathe odour
The inflorescence emits a brief but potent unpleasant odour to attract pollinating flies. This is normal and lasts only 1–2 days. Position plants where the temporary smell will not be objectionable, or accept it as a natural feature of this unusual plant.
Prevent giant typhonium problems before they start
Most giant typhonium issues are care-mismatch, not bad luck. Dial in the basics:
Giant Typhonium problems — FAQ
Why is my giant typhonium tuber rot in wet winters?
The most common cause of loss in temperate gardens. In zones 6–7, mulch heavily with 15–20 cm of dry straw or bark after the first frost. In very wet winters or heavy clay, lift tubers after dormancy sets in and store dry in frost-free conditions.
Why is my giant typhonium delayed emergence?
This species is a late starter — do not assume the tuber has rotted if it hasn't emerged by late spring. Growth typically begins in mid to late summer in cooler climates. Mark the planting spot to avoid accidental disturbance.
Why is my giant typhonium strong spathe odour?
The inflorescence emits a brief but potent unpleasant odour to attract pollinating flies. This is normal and lasts only 1–2 days. Position plants where the temporary smell will not be objectionable, or accept it as a natural feature of this unusual plant.