Its unusual coloration will make you love Petra Croton as a houseplant. It has deep green leaves with bright red, orange and yellow veins. If you're looking for a tall plant for that special spot in your home, Petra Croton may be just the ticket. It grows 6 ft. H to 8 ft. H and if you want something shorter than that, you can top it in the spring. Relatively low-maintenance, Petra needs to be watered only when the soil begins to dry out. It enjoys a humid environment and an occasional misting of its leaves. This is a tropical plant, so be sure to keep it in a warm spot in winter. If you move the plant and accidentally make it drop some leaves, don't panic. It will bounce back fast. Just make sure it gets plenty of sunlight and stick to its watering schedule. Besides adding mood-lifting beauty to your home, Petra helps purify the air as it grows.