This is Ocimum basilicum, also known as Sweet Basil, Common Basil, Thai Basil, and Tropical Basil. The leaves and flowers can be eaten raw and uncooked, and are commonly used in flavoring, spinach, tomato dishes, pasta dishes, beans, and peppers. The leaves can also be used for making teas. A essential oil can be made to make mustards, and other sauces. USDA Hardiness Zones 9 to 11