Following up to Chris Bacon

Do lupins grow wild?

lupinus lupinus moreii can often be found growing wild, it is
often thought of as an escape although it is often now regarded
as more of a recent adaptation to human activity. Unusually,
distribution of the seeds is acheived through a host, common
enough you might say, but uncommon for a specifically human host
to play this role, birds being the norm. In this case collected
specimens drop seeds as the plants are transported between
locations, often after being stolen in much the same way crows
(corvidae) will steal twigs from one another at rookeries. The
seedling then occur around the dwellings of poor people who have
recieved the lupins as unwanted "gifts".

(further reading Moore, Dennis, Your lupins or your life?)
--
Mike Reid
Shetland, Yell and Unst
"http://www.fellwalk.co.uk/skyepics.htm#shetland"