Ocimum tenuiflorum
The Kapoor variety is the best tulsi basil for temperate gardens. Also known as Holy Basil, this very aromatic annual has been known to self-seed. It has been used as an immune-enhancing, antifungal and antibacterial medicinal herb. It has been grown in India since ancient times. Makes a wonderful, soothing tea.
Direct seed or transplant into the garden after all danger of frost has passed. Basil will need full sun and well-draining soil. Water well to ensure good germination. Once germinated, basil will need at least an inch of water per week. Typically grown for leaves and flowers. Annual.