Pennyroyal - Plant
6550 - Pennyroyal. Mentha pulegium
For centuries, pennyroyal plant has been used as an herbal preparation to deter pests like fleas and gnats. Pennyroyal also had a history of medicinal uses, although that trend has faded with new knowledge of its potential toxicity. Aside from its pros and cons as a herb, as a member of the mint family pennyroyal is very easy to grow. Its profuse lavender flowers attract butterflies, and its spreading habit fills in bare spots in the garden or container.