My first instinct was to call this Borage (Pentaglottis sempervirens or Evergreen Alkanet). I moved into my house a year ago and found them growing everywhere. If yours are the same then they will develop small blue flowers. I yank out the ones that are overshadowing things I like but otherwise leave the ones at the backs of borders/under trees where I have nothing else growing. I also yank out the bottom leaves that sit on the soil and go brown/yellow ahead of the read of the plant.