Pretty much like how morning glory is...it sort of have a clockwork wherein when it is morning it opens up and closes down during the night. This only last for 3 days before it dies, the flower I mean. Your flower here looks almost like an orchid...nicely done except for the highlight, still nicely done no matter what. I wonder what kind of weed it is...there is a kind of plant in our backyard that I call "weed" and my husband call "ground cover"...so I guess it depends on what you like to call it...