Unknown Plant

Unknown Plant

Observation - Unknown Plant. Description: These plants were given to me by a friend who runs a gardening project. He tells me they were leftovers from planting at the 2012 olympic site in London so maybe they have been used for groundcover? I have looked in my flower guides but can't seem to find

These plants were given to me by a friend who runs a gardening project. He tells me they were leftovers from planting at the 2012 olympic site in London so maybe they have been used for groundcover? I have looked in my flower guides but can't seem to find this species anywhere. Would love an identification to see if it is going to flower or not.