green It was inside a terrarium to start with , The more I look at it (the plant) The more I think Cudweed ,
Only some of the leaves are dark green and waxy , the others exactly as it looks in the ID photo ,,
Unless it blooms ,I guess in two months or so , I dig one up and bring it in this winter , I suppose it could be some kind of Aster with the clumping form of it , ? Only I am lost with this one ... There is even the the possibility of some kind of Ajuga , I think someone mentioned that though ?