Elephant Garlic is not even a garlic, but is more related to the onion genus. It has a very, very mild garlic taste, and is often referred to as "The garlic for people who don't like garlic". That's not to say you won't like it, just know that if you like true garlic flavors, you won't find much of it there with the elephant type. I don't know about growing garlic in IL. I grow mine in NE Mississippi, and everything I grow are gourmet-type garlics. I am sorry I can't help you there. Ken