Phlox sibirica

Phlox sibirica, the Siberian phlox, is a species of flowering plant in the family Polemoniaceae, native to eastern European Russia, most regions of Siberia, northern parts of the Russian Far East, Mongolia, and Alaska.

Description
Phlox sibirica is a rhizomatous geophyte with flowers that vary from white to a pale blue-violet. A perennial with a cushion-like growth form, it reaches about 10 cm.