I received it from a friend as an adventitious root of Salmon Beauty. But it does not look like it, the leaves are very different even if to think that the flower is single because the plant is not developed. The color of the flower is too red. I would assume it is P. officinalis but not sure.

Mystery solved! It is probably Early Scout though the leaves are with blue shade, my Early Scout is just green and red, not pink.

Not so fast Anya the foliage is too broad for ES - see here;

Valerie, I also don't think it is Early Scout, my friend is not very good at keeping ID's. The flower is pink, not red and the foliage is blueish, not clear green, maybe too wide as you mentioned. I gave it away as a NOID. This is my Early Scout