Small leaved Lime Tilia Cordata
The lime has a habit of trapping puddles of water between its clumps of branches, which would save animals, which live in them; from venturing down onto the more dangerous ground, to look for water.
Sometimes I buy little Lime trees and sometimes I dig up suckers, from big trees. They seem to grow remarkably well and can put up with most things. They are slow to start, but remarkably tough and resilient.