Corm Pup Propagation on alocasia
What's Happening
Alocasias produce corm offsets (pups) at the base of parent plants as a survival strategy. These corms can be separated and propagated independently, creating backup plants if the parent succumbs to rot or dormancy. However, premature separation or incorrect propagation technique causes pup death. Understanding corm development stages ensures successful multiplication of your Alocasia collection.
How to Fix It
- 1
Identification: Look for small bulbous growths (0.5-1 inch diameter) at base of parent plant, often wrapped in papery brown tunic
- 2
Separation timing: Best done during active growing season (spring/summer); avoid winter when parent may be stressed
- 3
Gentle removal: Unpot parent, carefully tease away soil from corm base, identify pup attachment point, use sterile blade to separate if necessary
- 4
Pup preparation: Remove outer brown papery layers to expose pale inner tissue; do NOT remove all roots attached to pup
- 5
Propagation: Plant individual pup in small 2-3 inch pot with moist aroid mix, keeping top of corm exposed; enclose in humidity dome for 2-3 weeks
- 6
Care: Keep soil lightly moist, provide bright indirect light, maintain 70-80% humidity until new growth emerges (3-6 weeks)
How to Prevent It
Allow corms to develop on parent plant until they have 2-3 roots of their own; only separate when parent plant is healthy and actively growing; maintain high humidity (70%+) during separation to prevent desiccation of young corms.