Weed grasses are frequently found in UK lawns and pop up at random as their seeds blow over from neighbours, fields, etc. They don’t pose a threat to your lawn but they definitely don’t look great especially when left long like this one. 👷‍♂️ fix weeds grasses by digging them out fully from the root, replacing and levelling with topsoil then overseeding. Cover the seed with a thin layer of topsoil, compact and keep constantly moist for germination. Have you had any weed grasses in your lawn thi