What is the Hyssop, and what is the reason it an ancient herb plant?

Hyssop ( Hyssopus officinalis ) is a perennial and hardy herb with fragrant flowers (blue, purple or pink) and a long history of medicine. Since ancient times it has been grown and used as food, medicine as well as a spiritual guide, with its use being particularly popular in Mediterranean regions. Historically, hyssop was applied in favor of digestion, the respiratory system, and immune functioning. It is also an important plant for pollinating insects such as bees and butterflies due to its aromatic leaves and flowers with nectar.