I'd really like to grow a wisteria vine (I'm in Southern Portugal, so zone 10b), but I keep reading all over the place online that they'll destroy house foundations, drains etc. and therefore must be planted with an exclusion zone of about a kilometre.
Is this true? If so, how come they're all over houses in the UK? I want to plant one because there was one outside my window at university and the scent was wonderful. It was a huge vine and it hadn't destroyed my college.
What's the story? Is it just Americans being hysterical?