Taro 'Illustris' is also known as Elephant Ears for obvious reasons. The dramatically dark, green-veined, heart-shaped leaves can grow to 3 feet long, and the plant may eventually reach five feet tall. 'Illustris' can actually handle a fair amount of sun as long as it is watered regularly, and even tolerates wet soil, as you might find along ponds or streams. Taro is a heavy feeder, so fertilize regularly during the growing season for the biggest, most spectacular leaves. As a cautionary note, taro in its raw state can cause serious digestive issues if eaten by humans or animals due to the high levels of calcium oxalates found in the plant.