Strange French Bean?

I planted a few French Beans this year in a pot and one of the bean plants is growing ginormous, probably about four times the size of the other plants and the stem is also very thick. Any idea what is going on? Should I remove this rogue plant?

 

I bet its a French sunflower.

 

Yep I'd get rid @jazzy ...

 

Thanks. It could well be a sunflower a rogue seed must have fallen from the bird table next to the plants.

 

Ok, so its a, rogue French sunflower,

 

Don't throw it, grow it!

Steve...