Summary:The classic large-leaved Italian sweet basil prized for its spicy flavor and wonderful aroma. Fragrant plants grow 18-24". This is the variety of choice for pesto. Annual (Photo & description courtesy of Seed Savers Exchange) 5-30 days to germination. Plant in full sun. Plant seeds 1/8 inch deep and thin seedlings 4-6 inches apart. Seed harvesting: easy.