Licorice basil is a strong, flavorful variety of basil that grows into vibrant green plants with hints of purple on the foliage. A type of Thai basil, these plants are not only beautiful but reward growers as an immensely fragrant addition to the home garden. As the name would imply, both licorice and anise are prevalent in the flavor of the basil. Licorice, growing in the ground or in containers, thrives in warm weather climates which receive ample sunlight.