Holy basil, also known as Tulsi basil, is an aromatic herb growing up to 2 feet tall, widely used in culinary and medicinal applications for its leaves, which are known for their distinct flavor and health benefits. It thrives in warm climates with full sun and well-drained soil, making it an excellent addition to food forests for its pest-repellent properties and ability to attract pollinators. Holy basil is typically planted in the spring, requiring regular watering and occasional pruning to encourage bushy growth and continuous leaf production.