Dracaena make great houseplants as they are easy to care for and studies by NASA have shown they can remove harmful toxins from the air. The best part about the dracaena plant is it can adapt to whatever lighting you may have in your home or office. They grow in low or medium light but thrive and the leaves are most colorful in bright, indirect sunlight. Water your dracaena once a week. Be sure the dirt has dried out completely before rewatering so the plant does not develop root rot.