In article , Gary Woods
writes
Some years ago, a new "interstate" (multi-lane divided arterial) was built
through some former farmland west of Albany, New York.... for many years
afterward people cut asparagus that grew up through gravel fill in the
median strip! Around here, one can occasionally find "wild" asparagus.
Sometimes it truly is wild, but often it's the remnants of somebody's bed,
long abandoned, just as clumps of overgrown (but still healthy and
blooming) lilac often mark a long-lost farmhouse.

I'm not convinced that plant performance in foreign climes is a good
indication of its likely behaviour here.

John
--
John Rouse