What's this plant

[StiickEmUp]

It's lovely but probably a weed knowing me! It's on my work car park I want to steal a cutting

I can't remember but it grows like stink in my garden.

Hypericum ...I think (off to Google to check 😁)

Yes, hypericum (rose of sharon)

Thank you

yes, hypericum, but once it gets hold, its a devil to get rid

Stiick, we have the same at my office car park...been eyeing it up too