Achnatherum calamagrostis

About

Achnatherum calamagrostis is a species of flowering plant in the grass family Poaceae, known by the common names spear grass, needle grass, and silver spike grass. It is an ornamental grass native to the clearings in the mountains of central and southern Europe, which grows in mounds of blue-green leaves and long, silvery plumes. A. calamagrostis can grow up to 91 cm in height.

Summary from Wikipedia