5-7 feet tall, flowerheads 8-12 inches wide. Large black seeds are great for eating, for bird feeders, or for sprouting. High in protein. May also be pressed for oil. Flowers mid-summer to frost. 8 heirloom, chemical-free seeds. Free shipping on orders over $34. Every seed we sell is certified by us to be chemical-free, non-GMO and heirloom.