In UK we call this Aster but I believe in USA the name is Symphyotrichum Symphyotrichum - Google Search Symphyotrichum - Wikipedia aster - Google Search
GRIN (Taxonomy - GRIN-Global Web v 1.10.3.6) says Symphyotrichum subulatum is naturalized in Albania, but your plant looks a lot nicer than what I'm seeing posted, more like Symphyotrichum laeve, which is not listed for Albania, but is naturalized in several European countries (Taxonomy - GRIN-Global Web v 1.10.3.6). I think we would call it Aster, at least I have been. .
Was it growing wild or was it planted? In UK Symphyotrichum novi belgii and Symphyotrichum novae angliae are commonly sold for gardens. symphyotrichum novi belgii - Google Search Symphyotrichum novae-angliae - Google Search
