What is this growing through my garden wall
Can anyone tell me what this is growing through our old garden wall which is crumbling and deteriorating in parts. We moved in last August and the previous owners had pulled the plant growing through the wall out but with sprig coming it has come back. I'm wanting to know do I need to be pulling it out again to prevent further damage to the wall or can I leave it. The latter being my prefferpr option as I would like to cover the wall.