Most Alocasia propagation advice is borrowed from the wrong plants. Stem cuttings do not work here the way they do on Monstera or Philodendron. The two methods that actually produce results are corm germination and offset separation, and knowing why makes all the difference.

Every “help my Alocasia” thread ends the same way: someone tells you to put it in a chunky mix. The advice sounds modern. It’s actually wrong for this genus. Alocasias are terrestrial understory plants. Their roots evolved in moisture-retentive forest soils. Here’s what the biology, native habitat, and commercial producers tell us about substrate.

“Bright indirect light” is not a measurement. It is a description that means nothing you can act on. When you replace it with actual numbers, it becomes obvious why most Alocasias fail every winter, and why that failure is entirely preventable.

Alocasia is a terrestrial understory plant. It grows in consistently moist, nutrient-rich tropical soil on forest floors across Southeast Asia. The popular care advice was written for epiphytes. That is the entire problem, and this article is where it gets fixed.