I have had some over the years that have lasted 3 years and they have seeded freely. This tends to be the purple/pinky flowered form A.mexicanum. Good for insects and the do seed slightly.
The more ornamental ones orange etc are not as hardy for me in East Yorks.

I had the golden leaved one. It lasted a year.

I have a couple and they are sprouting now although I live in a frost pocket. As SBG says, they come easily from seed so you will have a back up.

That seems encouraging Eileen and Jimmy....sorry Ange yours only lasted a year...Thanks everyone.

I planted 'Firebird' last year and noticed the other day it has come through the winter

Thanks Andrew...mine is very small so keeping it potted until it puts on more growth.