St. John's Wort, Hypericum perforatum, is a shrubby perennial with lemon-scented flowers. It is hardy to Zone 3. Herbs have been used for centuries in Europe and Asia to alleviate symptoms of common ailments. Be very cautious as many are considered unsafe. Consult your physician before you begin using herbal medications. Recently, several herbs are getting attention for their medicinal uses. St. John's wort is reported to alleviate symptoms of clinical depression. Interestingly, it is considered a noxious weed in California.
