Tulsi, also known as Holy Basil, is a perennial herb that is considered sacred in Hinduism. It is native to the Indian subcontinent and has been used in Ayurvedic medicine for centuries. The plant can grow up to two feet tall and has green, fragrant leaves and small, purple or white flowers. In Hinduism, Tulsi is revered as a goddess and is often planted in and around temples and homes. It is believed to have spiritual properties and is considered to be a purifying and protective plant.