wow that was quick and answered my question.

I think its a buddleia. Plant grew this year, is about 1 meter tall. Heart
shaped lime green leaves and strong smelling lilac willow lookie like
flowers. Sounds like buddleia to you?
"atwifa" wrote in message
news
well it won't last forever (not even plants have worked that out yet) but
if
you mean 'will it come back into flower next year?' then the answer is
yes.

it will also grow bigger (assuming it's not restricted from doing so).