Soapwort (Saponaria officinalis), fam. Caryophyllaceae.
A forest plant and city weed (though quite beuatiful), its pale-pink flowers with weak but pleasant fragrance appear in June. The name of the plant says about the possibility to get some kind of foam or "soap" from it, but it is not a very nice idea because of its toxicity. Analogously, you should be careful with any recipes for medicinal use of soapwort.