Vervain sage, also known as blue sage or sacred sage, is a perennial herbaceous plant that is famed for its medicinal and spiritual properties. This herb is often used as a natural remedy for stress, anxiety, and insomnia, and it is also used in smudging ceremonies to cleanse negative energy. Vervain sage is a member of the mint family and has a distinct aroma that is often described as earthy, sweet, and slightly minty. Other synonyms for vervain sage include ceremonial sage, garden sage, and salvia officinalis. Whatever you call it, vervain sage is a beloved plant that has been used for centuries for its healing properties.