Leucojum aestivum

About

Leucojum aestivum, commonly called the summer snowflake, giant snowflake, Loddon lily and rarely snowbell and dewdrop among others, is a plant species widely cultivated as an ornamental. It is native to most of Europe from Spain and Ireland to Ukraine, with the exception of Scandinavia, Russia, Belarus and the Baltic countries. It is also considered native to Turkey, Iran and the Caucasus. It is naturalized in Denmark, South Australia, New South Wales, Nova Scotia and much of the eastern United States.

Summary from Wikipedia