If there's nothing wrong with it, why give up on it just because you have never seen a bee on it?, it's quite possible that this is pollinated by moths or other insects, it doesn't have to be bees, Derek.

Mine gets butterflies later on in the season. But if you like the plant keep it. if you don't then replace it with something you'd rather grow.

Thank you.
I planted it to attract bees and butterflies, have relocated it once (rather than ditch), it is very large and not earning its keep! I'll probably give it to someone with a corner to fill.