We’re Zone 7a and the minimum temperature we get is about -15 Celsius so I’m fairly certain we can grow it well here
The main issue is that no one in Europe even stocks the seeds, let alone the plants - it’s an economic hurdle rather than a climate one I think
I have a bunch on the way seeds wise but I’m eager to get a plant on the way before 2025 hits
As I understand it, importing plants from the USA requires some sort of certification, therein lies the problem I think