Chamomile is a versatile healing plant that can be used interchangeably. It prefers full sun to part shade and well-drained soils. Both Roman chamomile, a low-growing perennial, and German chamomile, an annual that can reach two feet tall, possess healing properties. Chamomile flowers can be dried and used to make tea, which aids in sleep and digestion. It can also be used to soothe red, puffy eyes.