So in early-lockdown desperation I bought what was labelled a Hibiscus Syracuse from a pound shop. It was basically a bare root twig in a box and I didn’t hold out much hope for it, but it’s actually doing remarkably well. However I’m pretty certain it’s not a hibiscus. It has long panicle shaped flowers and looks nothing like any google image of a hibiscus that I can find. It’s quite pretty, but I’m worried that it’s some brute that’s going to take over the border. Can anyone ID it for me?