Alocasias prefer pots that are wider than they are deep, as their roots tend to spread out horizontally. However, it's still important to make sure the pot has enough depth to accommodate their root system. Using a well-draining potting mix with added compost can also help promote healthy growth. Consider using a soil-free potting mix that contains ingredients like pumice, charcoal, bark, perlite, and worm casting for optimal results.