How big does Xanthosoma sagittifolium get?
In tropical climates, plants will grow to 6-9′ tall and produce huge green elephant-ear-like leaves to 4′ long and 3′ wide on stiff, ribbed petioles to 3′ long. Leaves are sagittate, hence the specific epithet. Although elephant ears tolerate full sun, they thrive in partial shade or dappled sun. Varieties with darker leaves need more sun to maintain their color. The more sun the plant gets, the more you will have to water it to meet the soil moisture requirements.Common elephant ear plant problems the good new is that most common problems with elephant ear plants are due to improper care. Give your plant the right amount of light, water, and humidity. If the leaves start to turn yellow or brown, this can be a sign of overwatering or underwatering.Other Problems with Elephant Ear Plants tall, thick petioles have quite a job sustaining the large leaves, so some staking may be required. Without support, the broad leaves have a tendency to droop and cover lower growing plants. They also replace the old leaves as the plant matures.Elephant ear plants (also known as colocasia) are a popular and easy-to-care-for houseplant. They are known for their large foliage and tropical appearance.