Is this a weed?

in Plants
Spring has sprung, as have the plants and weeds. Is this a weed? I don't remember planting something between sedum and aqualiga, but I may have forgotten! I found a similar plant appearing in my mint, which suggests a weed.
Thank you
Thank you


1
Posts
Never seen Valerianella locusta before and now 2 almost identical threads. Were it appears to be real thug.