The elephant ear plant, or Colocasia, is a flowering plant in the Araceae family. It is native to southeastern Asian and India. It’s name is derived from the Greek work kolokasion, which Dioscorides (a Greek Botanist) meant the edible roots of both Colocasia esculenta and Nelumbo nucifera (Lotus). More obviously, the name Elephant Ear comes from its large leaves that resemble the ears of an elephant.
While the roots are edible (known as Taro) – and have been harvested for over 10,000 years – the leaves and stems are not, unless cooked or fermented first, as they contain microscopic, needle-like raphides.
The Elephant Ear plants require full sun or part shade with wet soil. They can grow anywhere from 3 to 10 feet tall with a 2 to 10 foot spread. It thrives in Zones 9-11 and can endure temperatures down to 30 degrees. They make great companions with other plants in the Araceae family or as a dramatic centerpiece in mixed containers.
Swing by the Greenhouse at Denny Farrell Riverbank State park to view the thriving elephant ear plant!