By Taurman
Cork,
Ireland 
This has appeared in my flower bed, is it a friend or a weed, looks vaguely familiar? Thank you.
9 Jun, 2017
Answers
Do you remember having any Phlox in that patch?
10 Jun, 2017
Can't say I remember having a phlox there, funny I have planted them elsewhere in the garden and they have died for some reason.
10 Jun, 2017
It might be a weed but don't be too hasty to pull it out until you see it flower, you never know!!
10 Jun, 2017
looks quite a bit like Lychnis chalcedonica [maltese/Jerusalem cross]
10 Jun, 2017
Maybe a willow herb (Epilobium)?
10 Jun, 2017