Annual. Known as the Queen of Herbs in India, Tulsi is considered to be sacred. The health-promoting properties of Holy Basil are said to help the body combat stress and other medical concerns. Plants are very fragrant. Make a delicious tea with a spicy clove, fruity, anise-like aroma by steeping the leaves; add the flowers to intensify the flavor. Grow indoor for a continuous supply of fresh leaves throughout the winter.