Do you know for sure they want them? I just ripped 4 of them out of my garden today (it's been seeding) and hacked my bush back in half. Again. I cut the bush in half 2-3 times a year. It's still 2 stories tall, but I try not to let it take over the entire corner of the yard.

I vaguely hate the bush but it makes it so that I can't see the neighbors when they're out on their deck and it'd take too long to grow another privacy screen.