Southern Finland. I've found these and some more bluish ones. They are fairly small (the flower itself is about 4-6cm) and have these long, pretty thick leaves. It isn't visible in the photos, but the petals have this glittery look on them.
Here's one of the blue ones, in a vase:
I've mostly seen them near yards or gardens, so I think they aren't native.
I want to recommend the app Pl@ntnet! They are awesome, it is a citizen science project. It will very accurately tell you many plants. Fascinating thing. It was already there long before the current AI craze.
https://plantnet.org/en/