These enormous, record-breaking sunflower heads can grow to an impressive 24 inches in diameter, making them among the largest varieties you can cultivate. Not only do they reach towering heights of 12 feet or more, but they also yield an abundance of large, plump seeds. A true showstopper in any garden, these sunflowers boast gigantic blooms that captivate with their intricate and mesmerizing central patterns, making them a striking addition that will leave a lasting impression on anyone who sees them.