Plant Breeder's Rights,

Geum urbanum aka wood avens or herb bennett @fairygirl .
Don't get me started .

Herb bennet / RHS

 

Also nicknamed "Grim Urban". I'm not seeing much of it this year but it will undoubtedly pop up all over the garden once the rain returns.

 

Your plant or seedlings could be Geum Borsii @Spruce, very similar to Totally Tangerine but slightly less bright. I grew both and decided I prefer Scarlet Tempest which also looks very similar .

 

Tottaly tangerine is the only one I grow

 

Yes - but I think what @Plantminded means is - your new plants may have come from another garden @Spruce, as I also said earlier. Not all of them are sterile, [like T.T ] so you can get seed coming in if there are other non sterile varieties growing in the vicinity.

Aye - that wild geum is a right PITA @AnniD. I have a little bit growing in the scrubby mess at the edge of my back boundary, in with cotoneaster and basically rubble, right at the edge of the road and pavement. I keep an eye on it, because I certainly don't want it getting in the garden itself. So far, so good. Fingers crossed....

 

wood avens root is edible and was used as a clove substitute. thats all i know about it beyond it being everywhere here