Agree with MereDint that plant finder apps are far from infallible!
Not at all sure on this one for ID, but one thing is for certain - it is not a weed, 'weeds' are simply wildflowers growing somewhere where they are not wanted for some reason! Many are as beautiful as, if not more so, than their cultivated relatives. Imagine if a dandelion, for example, were uncommon, grown by a specialist nursery and cost you a small fortune - would you not treasure it, admire it and show it off to all your friends? They are, after all, not dissimilar to Doronicum which is cultivated for its showy, yellow, daisy like flowers!
Anyway, back to your mystery plant - yes, let it flower to give a better idea of what it is! For what it is worth, it could potentially be a Verbascum, either chaixii or phoeniceum, but I say that with very little confidence - the structure looks right, but the leaves don't.
Do let us know when it flowers, I am intrigued.