What’s this plant please?

[BringPizza]

I’ve taken to letting the pretty & weak weeds stay in one of my borders as a bit of an experiment. This one is about 120cm tall, possibly grown from the leftover winter bird seed (like the millions of sunflowers ). Any thoughts on this one please?

This is what my app thinks it is!

Thanks @happy97 I need to get one of those apps

@BringPizza

Thanks *@happy97* I need to get one of those apps

Be cautious how you use them. They go on picture matching only, so treat their answer as a suggestion only. Then google and find out whether a) it grows in your country b) whether it's the same growth form (I remember someone on here excitedly saying their app had identified the plant as a Sedum - sedums are low creepers, what was being identified was a large shrub) c) whether it's in flower the same time as yours is in flower d) does it have the same number of petals? - petal number is often a fundamental character in flowers, but doesn't contribute so much to the shape of the purple patches that the plant app is looking at. And so on.

My app says similar