Usually, this flower might be opened from late June. It's a kind of summer flower.
It's called "Yoi-Machi-Gusa" - means "a weed waiting the night comes", and also it has a name "Tsuki-mi-sou" that is meant "flower look up the moon". The flowers come out in the evening. There are some kinds of the flower which have the same name, and they look like almost the same shapes and colors. Differences are like hights and sizes of the flowers. One is like the hight of 2-3 inches, another going to be 3-6 foot, some have small flowers and some have bigger like 1 inch in diameter.
They are just weeds, but sometimes they are a little bit elegance in the scenery in summer time.
