I know there will be many who will tell me they've seen something like this before, or it's just a normal variation, happens all the time, etc.. If you do, please send the pictures of this happening elsewhere.
The picture was taken by a person who lives nearby, and it was on Yomiuri Shinbun Saitama version (9/1/2011). A normal lily is on the right side. The giant lily is about 1 meter tall, according to Yomiuri.