Day lily flowers are edible. I've heard about this before, but I never tried eating one until today. They don't especially look edible to me. Maybe it is the color. I wondered if it was all a hoax, and I'd soon be in the emergency room getting questioned. "What? You ate day lilies!? Based on something you read on the internet? Couldn't you tell just by looking at them how horribly poisonous they are?" That sort of thing.
But the truth is, not only are day lily flowers edible, they are delicious. They taste sort of like sweet lettuce, but better. All these years that I've been growing them and not eating them, I really missed out.