There's a very small flower bed next to the front steps - it's about three by four feet. And a number of years ago I bought some perennial hollyhocks and put them in this bed. They grew to eight feet tall! A medley of colors - yellow, pink, white and deep maroon. They were fabulous at first, but soon their leaves got chewed-looking, which wasn't so good, and after a few years of this I thought maybe they weren't suited for this area and decided to pull them up. But they came back the next year.
My brother even got into that small space once, with a shovel, and dug them out (I can see him in my mind's eye even now). They still returned the next year.
I tried again one year by layering newspaper all over the bed, knowing it would also kill my daffodils, but I had to get rid of those hollyhocks. Still, they were there again the following spring.
I know their leaves by now - I know a hollyhock leaf in a second!
You may think I dislike them. I assure you, I love them. What anglophile doesn't dream of a cottage-style garden? And what cottage garden doesn't include hollyhocks? Did I say they were at least six feet tall? Usually seven, sometimes eight? I loved them. But they would look so buggy and awful.
I give up. I'm even happy.