Can anyone name this please? There are two or 3 that have just come up in the past couple of weeks.
It might be rosebaywillow herb? The leaves don't look quite the right shape though, so I'm not sure
I think it's a willowherb but not rosebay, Possibly Epilobium hirsutum.
I've googled your suggestions, but they describe hairy stems, which I don't think this one has. I will let the plant mature and hopefully flower, rephotograph and post here.