Would appear to be a lilium

Asiatic Lily. Those blooms will open to beautiful bright flowers. You'll think you're in Hawaii for a little while. They are from bulbs. They grow fast in the spring, grow high and can be a bit lanky. Some people plant a shorter plant around the base. Blooms last for a couple weeks and they're done. They really put on a show, though. They do multiply fairly quickly. You'll need to dig some up every few years and plant somewhere else, give away or swap! You'll make lots of friends. It's like offering people ice cream. Everybody's your friend when you have these to give away or swap!
Heidi in Nebraska

Thank you both so much! I looked up some pictures of asiatic lily and they are GORGEOUS! I can't wait for them to bloom!