If you love elephant ears, you have to give this one a try! The Upright Elephant Ear (also known as Giant Taro or Alocasia macrorrhiza) will typically grow 4-6 feet tall and 2-4 feet wide or even large in warmer areas! This upright variety is a wonderful easily grown tropical plant for the summer garden. Transform your summer landscape or patio into a tropical oasis! This plant loves water and fertilizer. Unlike Colocasia, these leaves are more arrow-shaped and will point upward.