"Surprise" Lily

Okay, I'll admit that it's not really a "Surprise" Lily. But, I was quite surprised to return home after a one-day trip to Florida to find this beautiful lily in bloom . . . again! It put on quite the show back in the Spring and I never expected a repeat performance. I purchased this lily as a bulb a few years back at a plant sale. And, much to my dismay, I can't remember its name! But, I'm determined to figure it out and when I do, I'll repost. In the meantime, if anyone can identify - please comment!