("Upright Elephant ears / Giant taro")
Native to the rainforests of Malaysia to Queensland (Australia) and has long been cultivated on many of the Pacific Islands and elsewhere in the tropics.
Plant outdoors only after the soil and night temperatures have reliably warmed up to above 60F / 15C. By nature the tuber sizes vary quite a bit: dig the holes deep enough so that the top of the tubers will be covered with about 2" / 5 cm of soil. In the landscape or large containers, never let the soil dry out and water abundantly. Alocasia love heat and humidity. Do give them a location that is sheltered from the wind to avoid damage.