Flowering annual plants called Nemophila. Nemophila comes from the Greek, meaning “wood-loving”.
Most of the species in Nemophila contain the phrase “baby blue-eyes” in their common names. N. menziesii has the common name of “Baby blue-eyes”. N. parviflora is called the “Smallflower baby blue-eyes” and N. spatulata is called the “Sierra baby blue-eyes”…with one exception the one called Five Spot.
Nemophila are found in the genus of the family Hydrophyllaceae. Most are native to southern United States.
Nemophila are a staple in Japanese gardens for groundcover and complementary planting (see nemophila in the background) as well as show specimen planting (see bottommost photo).
Nemophila at the Hitachi Seaside Park (source: Wikimedia)
NATURE IN JAPAN 
It’s so beautiful
Thank you very much. I’ve looking for the name of this flower.