Or maybe, it's new and the builder installed typical foundation planting. A pointy evergreen at each corner and a couple of shrubs along the face. Instead of spacing random shapes at regular intervals along the house, combining those two and a half simple shapes selected from the title graphic into a group immediately anchors one side of the house to the ground. The vertical element does anchor the corner of the house because the eye reads the vertical line of the house and the vertical line of the shape as one. But, the vertical shape isn't isolated, it forms the apex of the magic triangle that causes the eye to flow down and out - or, conversely, in and up to a focal point.
Every design needs a focal point, to which all other elements relate and are subordinated.
This is true for just about any medium you care to work with - including plantings. Something needs to be dominate, but closely related to the rest of the picture so that the eye reads it as a whole until it comes to a logical stopping point. If you imagine this to be the front of the house, with the front door centered on the facade, repeating the identical grouping on the other side gives you a symmetrical design that draws the eye to the front door, increasing its importance and visibility from the approach. Each group has a focal point. Together they form a triangle with the apex at the center of the house so that any element in the center becomes the major focal point of the composition.