The red tinges the paler areas on the upper sides, making this truly a three-colored plant. The long, almost vertical, leafstalks produce large pointed elliptical leaves up to 12in/30cm in length.Ctenanthes native habitat is beneath the tree canopy.of hot, humid rain forests, but it has adapted well as a houseplant. It enjoys average room temperatures, and as long as it is not overwatered and has high humidity, it should do well.