Posted: 09/05/2017 at 08:51
It looks willowherb ish. It could be one of the cultivated Epilobiums , it looks too well grown for fireweed. Leave it a week or two, and it will flower. If you like it , keep it. If you don't , be ruthless and dig it out. A weed is just a plant in the wrong place. I see what look like some welsh poppy seedlings poking out around it. I keep them, others think they are weeds.