Solved Can anyone identify this?

This large leafy plant is growing in my border and I have no idea if it is something I planted or a cuckoo in the nest.



The Sweet peas behind it give some idea of scale.
It may have been deposited by a bird, as my bird feeder is above it, or it may even be a rogue seed fallen from the bird feeder (though I thought seeds sold for wild bird food was usually sterilized). Has anyone any ideas?

 

If it's near a feeder it could be rapeseed.

 

I think you may be right. I'll nip out and pull it up.

 

There was a second one close by in my "cottage garden". They are both in the brown bin now. Thanks for your help.