Not sure what this is

Not sure what this is

Observation - Not sure what this is - UK and Ireland. Description: This has been growing in the garden for a wee while. We definitely didn't plant it and aren't sure what it is. I think it may have come from the bird feeder but I am not sure. Anyone know what it is? Cheers

This has been growing in the garden for a wee while. We definitely didn't plant it and aren't sure what it is. I think it may have come from the bird feeder but I am not sure. Anyone know what it is? Cheers