Equisetum hyemale (rough horsetail) is rich in silica and has long been used for dental health. Here's the skinny on growing horsetail at home.

Discover the benefits of Siberian ginseng—an herb with a long history of enhancing health, athletic performance, and the body's ability to deal with

What does "perennial" mean? What about "venation" or "whorl"? Find out in this no-nonsense, illustrated guide to nearly 50 botanical terms.